NOAA SWPC Alerts, Watches en Waarschuwingen

Het National Oceanic and Atmospheric Administration Space Weather Prediction Center (NOAA SWPC) is de officiële ruimteweer instantie van de Verenigde Staten die alerts, watches en waarschuwingen verstuurd met betrekking tot het ruimteweer. Hieronder zal je de meest recente ruimteweer alerts, watches en waarschuwingen vinden van het NOAA SWPC.

woensdag 7 juni 2023

09:44 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1195
Issue Time: 2023 Jun 07 0944 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 Jun 07 0637 UTC
Estimated Velocity: 543 km/s

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

zondag 4 juni 2023

21:02 UTC

Space Weather Message Code: ALTK04
Serial Number: 2377
Issue Time: 2023 Jun 04 2102 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023 Jun 04 2059 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

19:06 UTC

Space Weather Message Code: WARK04
Serial Number: 4394
Issue Time: 2023 Jun 04 1906 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 Jun 04 1905 UTC
Valid To: 2023 Jun 05 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

vrijdag 2 juni 2023

19:46 UTC

Space Weather Message Code: WATA20
Serial Number: 951
Issue Time: 2023 Jun 02 1946 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Jun 03: G1 (Minor) Jun 04: None (Below G1) Jun 05: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

donderdag 1 juni 2023

08:53 UTC

Space Weather Message Code: WARK04
Serial Number: 4393
Issue Time: 2023 Jun 01 0853 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4392
Valid From: 2023 Jun 01 0116 UTC
Now Valid Until: 2023 Jun 01 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

02:47 UTC

Space Weather Message Code: ALTK04
Serial Number: 2376
Issue Time: 2023 Jun 01 0247 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023 Jun 01 0245 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

01:15 UTC

Space Weather Message Code: WARK04
Serial Number: 4392
Issue Time: 2023 Jun 01 0115 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 Jun 01 0116 UTC
Valid To: 2023 Jun 01 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

dinsdag 30 mei 2023

20:47 UTC

Space Weather Message Code: WATA20
Serial Number: 950
Issue Time: 2023 May 30 2047 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
May 31: None (Below G1) Jun 01: None (Below G1) Jun 02: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

11:09 UTC

Space Weather Message Code: SUM10R
Serial Number: 761
Issue Time: 2023 May 30 1109 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2023 May 30 1020 UTC
Maximum Time: 2023 May 30 1020 UTC
End Time: 2023 May 30 1020 UTC
Duration: 1 minutes
Peak Flux: 210 sfu
Latest Penticton Noon Flux: 154 sfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

zondag 28 mei 2023

05:31 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3338
Issue Time: 2023 May 28 0531 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3337
Begin Time: 2023 May 22 1545 UTC
Yesterday Maximum 2MeV Flux: 4253 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

zaterdag 27 mei 2023

20:27 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1194
Issue Time: 2023 May 27 2027 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 May 27 1927 UTC
Estimated Velocity: 470 km/s

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

04:59 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3337
Issue Time: 2023 May 27 0459 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3336
Begin Time: 2023 May 22 1545 UTC
Yesterday Maximum 2MeV Flux: 4078 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

04:55 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1193
Issue Time: 2023 May 27 0455 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 May 27 0436 UTC
Estimated Velocity: 544 km/s

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

vrijdag 26 mei 2023

04:59 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3336
Issue Time: 2023 May 26 0459 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3335
Begin Time: 2023 May 22 1545 UTC
Yesterday Maximum 2MeV Flux: 3826 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

donderdag 25 mei 2023

20:57 UTC

Space Weather Message Code: WARK04
Serial Number: 4391
Issue Time: 2023 May 25 2057 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4390
Valid From: 2023 May 25 0200 UTC
Now Valid Until: 2023 May 26 0900 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

14:56 UTC

Space Weather Message Code: WARK04
Serial Number: 4390
Issue Time: 2023 May 25 1456 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4389
Valid From: 2023 May 25 0200 UTC
Now Valid Until: 2023 May 25 2100 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

08:32 UTC

Space Weather Message Code: WARK04
Serial Number: 4389
Issue Time: 2023 May 25 0832 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4388
Valid From: 2023 May 25 0200 UTC
Now Valid Until: 2023 May 25 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

07:16 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3335
Issue Time: 2023 May 25 0716 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3334
Begin Time: 2023 May 22 1545 UTC
Yesterday Maximum 2MeV Flux: 2694 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

02:00 UTC

Space Weather Message Code: WARK04
Serial Number: 4388
Issue Time: 2023 May 25 0200 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 May 25 0200 UTC
Valid To: 2023 May 25 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

woensdag 24 mei 2023

05:06 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3334
Issue Time: 2023 May 24 0506 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3333
Begin Time: 2023 May 22 1545 UTC
Yesterday Maximum 2MeV Flux: 1402 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

02:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4387
Issue Time: 2023 May 24 0255 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4386
Valid From: 2023 May 23 2220 UTC
Now Valid Until: 2023 May 24 1200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

dinsdag 23 mei 2023

22:59 UTC

Space Weather Message Code: ALTK04
Serial Number: 2375
Issue Time: 2023 May 23 2259 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023 May 23 2258 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

22:19 UTC

Space Weather Message Code: WARK04
Serial Number: 4386
Issue Time: 2023 May 23 2219 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 May 23 2220 UTC
Valid To: 2023 May 24 0300 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

13:28 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3333
Issue Time: 2023 May 23 1328 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3332
Begin Time: 2023 May 22 1545 UTC
Yesterday Maximum 2MeV Flux: 1267 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

13:09 UTC

Space Weather Message Code: ALTTP4
Serial Number: 603
Issue Time: 2023 May 23 1309 UTC

ALERT: Type IV Radio Emission
Begin Time: 2023 May 23 1120 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

maandag 22 mei 2023

23:27 UTC

Space Weather Message Code: WARK05
Serial Number: 1779
Issue Time: 2023 May 22 2327 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2023 May 22 2325 UTC
Valid To: 2023 May 23 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

23:27 UTC

Space Weather Message Code: WARK04
Serial Number: 4385
Issue Time: 2023 May 22 2327 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4384
Valid From: 2023 May 22 1937 UTC
Now Valid Until: 2023 May 23 1500 UTC
Warning Condition: persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

20:49 UTC

Space Weather Message Code: ALTK04
Serial Number: 2374
Issue Time: 2023 May 22 2049 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023 May 22 2042 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

19:39 UTC

Space Weather Message Code: WARK04
Serial Number: 4384
Issue Time: 2023 May 22 1939 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 May 22 1937 UTC
Valid To: 2023 May 23 0300 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

15:57 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3332
Issue Time: 2023 May 22 1557 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2023 May 22 1545 UTC
Station: GOES16


NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

14:00 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1192
Issue Time: 2023 May 22 1400 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 May 22 1340 UTC
Estimated Velocity: 439 km/s

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

11:53 UTC

Space Weather Message Code: WATA20
Serial Number: 949
Issue Time: 2023 May 22 1153 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
May 23: G1 (Minor) May 24: G1 (Minor) May 25: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

02:31 UTC

Space Weather Message Code: ALTK05
Serial Number: 1470
Issue Time: 2023 May 22 0231 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 22 0230 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

00:01 UTC

Space Weather Message Code: ALTK06
Serial Number: 529
Issue Time: 2023 May 22 0001 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023 May 21 2358 UTC
Synoptic Period: 2100-0000 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

zondag 21 mei 2023

22:05 UTC

Space Weather Message Code: WATA20
Serial Number: 948
Issue Time: 2023 May 21 2205 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
May 22: G2 (Moderate) May 23: G1 (Minor) May 24: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

21:36 UTC

Space Weather Message Code: ALTK05
Serial Number: 1469
Issue Time: 2023 May 21 2136 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 21 2136 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

21:05 UTC

Space Weather Message Code: ALTK06
Serial Number: 528
Issue Time: 2023 May 21 2105 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023 May 21 2059 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

20:44 UTC

Space Weather Message Code: WARK06
Serial Number: 486
Issue Time: 2023 May 21 2044 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2023 May 21 2045 UTC
Valid To: 2023 May 22 0300 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

20:38 UTC

Space Weather Message Code: ALTK05
Serial Number: 1468
Issue Time: 2023 May 21 2038 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 21 2037 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

20:32 UTC

Space Weather Message Code: WARK05
Serial Number: 1778
Issue Time: 2023 May 21 2032 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2023 May 21 2033 UTC
Valid To: 2023 May 22 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

20:30 UTC

Space Weather Message Code: WARK04
Serial Number: 4383
Issue Time: 2023 May 21 2030 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4382
Valid From: 2023 May 21 1600 UTC
Now Valid Until: 2023 May 22 1200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

16:10 UTC

Space Weather Message Code: ALTK04
Serial Number: 2373
Issue Time: 2023 May 21 1610 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023 May 21 1610 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

15:59 UTC

Space Weather Message Code: WARK04
Serial Number: 4382
Issue Time: 2023 May 21 1559 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 May 21 1600 UTC
Valid To: 2023 May 21 2100 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

zaterdag 20 mei 2023

23:38 UTC

Space Weather Message Code: SUMXM5
Serial Number: 187
Issue Time: 2023 May 20 2338 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2023 May 20 2252 UTC
Maximum Time: 2023 May 20 2306 UTC
End Time: 2023 May 20 2321 UTC
X-ray Class: M5.1
Optical Class: 2b
Location: N16E48
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

23:22 UTC

Space Weather Message Code: SUM10R
Serial Number: 760
Issue Time: 2023 May 20 2322 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2023 May 20 2302 UTC
Maximum Time: 2023 May 20 2303 UTC
End Time: 2023 May 20 2304 UTC
Duration: 2 minutes
Peak Flux: 170 sfu
Latest Penticton Noon Flux: 170 sfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

23:10 UTC

Space Weather Message Code: ALTXMF
Serial Number: 316
Issue Time: 2023 May 20 2310 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2023 May 20 2305 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

22:11 UTC

Space Weather Message Code: WATA20
Serial Number: 947
Issue Time: 2023 May 20 2211 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
May 21: None (Below G1) May 22: None (Below G1) May 23: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

17:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4381
Issue Time: 2023 May 20 1755 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4380
Valid From: 2023 May 19 2000 UTC
Now Valid Until: 2023 May 21 0600 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

15:21 UTC

Space Weather Message Code: SUMXM5
Serial Number: 186
Issue Time: 2023 May 20 1521 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2023 May 20 1454 UTC
Maximum Time: 2023 May 20 1500 UTC
End Time: 2023 May 20 1504 UTC
X-ray Class: M5.6
Location: N18E53
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

15:01 UTC

Space Weather Message Code: ALTXMF
Serial Number: 315
Issue Time: 2023 May 20 1501 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2023 May 20 1456 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

13:00 UTC

Space Weather Message Code: SUMXM5
Serial Number: 185
Issue Time: 2023 May 20 1300 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2023 May 20 1225 UTC
Maximum Time: 2023 May 20 1235 UTC
End Time: 2023 May 20 1240 UTC
X-ray Class: M8.9
Location: N18E54
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

12:37 UTC

Space Weather Message Code: ALTXMF
Serial Number: 314
Issue Time: 2023 May 20 1237 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2023 May 20 1234 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

08:58 UTC

Space Weather Message Code: WARK04
Serial Number: 4380
Issue Time: 2023 May 20 0858 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4379
Valid From: 2023 May 19 2000 UTC
Now Valid Until: 2023 May 20 1800 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

08:55 UTC

Space Weather Message Code: WARK05
Serial Number: 1777
Issue Time: 2023 May 20 0855 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1776
Valid From: 2023 May 20 0100 UTC
Now Valid Until: 2023 May 20 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

08:21 UTC

Space Weather Message Code: SUMXM5
Serial Number: 184
Issue Time: 2023 May 20 0821 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2023 May 20 0716 UTC
Maximum Time: 2023 May 20 0732 UTC
End Time: 2023 May 20 0736 UTC
X-ray Class: M6.4
Location: N18E56
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

08:09 UTC

Space Weather Message Code: ALTK05
Serial Number: 1467
Issue Time: 2023 May 20 0809 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 20 0805 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

07:45 UTC

Space Weather Message Code: SUM10R
Serial Number: 759
Issue Time: 2023 May 20 0745 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2023 May 20 0731 UTC
Maximum Time: 2023 May 20 0731 UTC
End Time: 2023 May 20 0732 UTC
Duration: 1 minutes
Peak Flux: 170 sfu
Latest Penticton Noon Flux: 165 sfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

07:34 UTC

Space Weather Message Code: ALTXMF
Serial Number: 313
Issue Time: 2023 May 20 0734 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2023 May 20 0730 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

05:54 UTC

Space Weather Message Code: ALTK06
Serial Number: 527
Issue Time: 2023 May 20 0554 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023 May 20 0553 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

04:23 UTC

Space Weather Message Code: ALTK05
Serial Number: 1466
Issue Time: 2023 May 20 0423 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 20 0420 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

03:01 UTC

Space Weather Message Code: ALTK06
Serial Number: 526
Issue Time: 2023 May 20 0301 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023 May 20 0259 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

03:00 UTC

Space Weather Message Code: WARK06
Serial Number: 485
Issue Time: 2023 May 20 0300 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2023 May 20 0259 UTC
Valid To: 2023 May 20 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

01:50 UTC

Space Weather Message Code: ALTK05
Serial Number: 1465
Issue Time: 2023 May 20 0150 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 20 0150 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

00:46 UTC

Space Weather Message Code: WARK05
Serial Number: 1776
Issue Time: 2023 May 20 0046 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2023 May 20 0100 UTC
Valid To: 2023 May 20 0900 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

vrijdag 19 mei 2023

23:51 UTC

Space Weather Message Code: WARK04
Serial Number: 4379
Issue Time: 2023 May 19 2351 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4378
Valid From: 2023 May 19 2000 UTC
Now Valid Until: 2023 May 20 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

23:29 UTC

Space Weather Message Code: ALTK04
Serial Number: 2372
Issue Time: 2023 May 19 2329 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023 May 19 2324 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

19:59 UTC

Space Weather Message Code: WARK04
Serial Number: 4378
Issue Time: 2023 May 19 1959 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 May 19 2000 UTC
Valid To: 2023 May 20 0000 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

01:23 UTC

Space Weather Message Code: SUMXM5
Serial Number: 183
Issue Time: 2023 May 19 0123 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2023 May 19 0041 UTC
Maximum Time: 2023 May 19 0048 UTC
End Time: 2023 May 19 0054 UTC
X-ray Class: M5.3
Location: N18E76
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

00:52 UTC

Space Weather Message Code: ALTXMF
Serial Number: 312
Issue Time: 2023 May 19 0052 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2023 May 19 0048 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

woensdag 17 mei 2023

15:46 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1191
Issue Time: 2023 May 17 1546 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 May 17 1522 UTC
Estimated Velocity: 343 km/s

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

dinsdag 16 mei 2023

17:55 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1190
Issue Time: 2023 May 16 1755 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 May 16 1731 UTC
Estimated Velocity: 886 km/s

Comment: Associated with an M9.6 flare from just behind the SE limb

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

16:57 UTC

Space Weather Message Code: SUMXM5
Serial Number: 182
Issue Time: 2023 May 16 1657 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2023 May 16 1631 UTC
Maximum Time: 2023 May 16 1643 UTC
End Time: 2023 May 16 1651 UTC
X-ray Class: M9.6
Location: S23E95
NOAA Scale: R2 - Moderate

Comment: Flare location is just beyond the SE limb and estimated.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

16:42 UTC

Space Weather Message Code: ALTXMF
Serial Number: 311
Issue Time: 2023 May 16 1642 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2023 May 16 1640 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

zaterdag 13 mei 2023

23:50 UTC

Space Weather Message Code: WARK04
Serial Number: 4377
Issue Time: 2023 May 13 2350 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4376
Valid From: 2023 May 13 1920 UTC
Now Valid Until: 2023 May 14 0600 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

20:55 UTC

Space Weather Message Code: ALTK04
Serial Number: 2371
Issue Time: 2023 May 13 2055 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023 May 13 2055 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

19:20 UTC

Space Weather Message Code: WARK04
Serial Number: 4376
Issue Time: 2023 May 13 1920 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 May 13 1920 UTC
Valid To: 2023 May 13 2359 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

vrijdag 12 mei 2023

14:51 UTC

Space Weather Message Code: WARK04
Serial Number: 4375
Issue Time: 2023 May 12 1451 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4374
Valid From: 2023 May 12 0545 UTC
Now Valid Until: 2023 May 13 0600 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

14:45 UTC

Space Weather Message Code: ALTK05
Serial Number: 1464
Issue Time: 2023 May 12 1445 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 12 1445 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

14:42 UTC

Space Weather Message Code: WARK05
Serial Number: 1775
Issue Time: 2023 May 12 1442 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2023 May 12 1440 UTC
Valid To: 2023 May 12 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

06:40 UTC

Space Weather Message Code: SUMSUD
Serial Number: 250
Issue Time: 2023 May 12 0640 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2023 May 12 0635 UTC
Deviation: 34 nT
Station: OTT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

06:09 UTC

Space Weather Message Code: WARSUD
Serial Number: 203
Issue Time: 2023 May 12 0609 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2023 May 12 0620 UTC
Valid To: 2023 May 12 0720 UTC
IP Shock Passage Observed: 2023 May 12 0550 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

06:01 UTC

Space Weather Message Code: ALTK04
Serial Number: 2370
Issue Time: 2023 May 12 0601 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023 May 12 0559 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

05:49 UTC

Space Weather Message Code: WARK04
Serial Number: 4374
Issue Time: 2023 May 12 0549 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 May 12 0545 UTC
Valid To: 2023 May 12 1800 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

02:20 UTC

Space Weather Message Code: SUMPX1
Serial Number: 98
Issue Time: 2023 May 12 0220 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2023 May 09 2335 UTC
Maximum Time: 2023 May 10 1325 UTC
End Time: 2023 May 11 0405 UTC
Maximum 10MeV Flux: 80 pfu
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

00:22 UTC

Space Weather Message Code: SUMPX1
Serial Number: 97
Issue Time: 2023 May 12 0022 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2023 May 09 2335 UTC
Maximum Time: 2023 May 10 1325 UTC
End Time: 2023 May 11 0405 UTC
Maximum 10MeV Flux: 8 pfu
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

donderdag 11 mei 2023

20:44 UTC

Space Weather Message Code: SUM10R
Serial Number: 758
Issue Time: 2023 May 11 2044 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2023 May 11 1824 UTC
Maximum Time: 2023 May 11 1827 UTC
End Time: 2023 May 11 1828 UTC
Duration: 4 minutes
Peak Flux: 180 sfu
Latest Penticton Noon Flux: 163 sfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

20:41 UTC

Space Weather Message Code: ALTTP4
Serial Number: 602
Issue Time: 2023 May 11 2041 UTC

ALERT: Type IV Radio Emission
Begin Time: 2023 May 11 1844 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

20:22 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1189
Issue Time: 2023 May 11 2022 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 May 11 1832 UTC
Estimated Velocity: 356 km/s

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

11:41 UTC

Space Weather Message Code: WARPX1
Serial Number: 507
Issue Time: 2023 May 11 1141 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 506
Valid From: 2023 May 09 2300 UTC
Now Valid Until: 2023 May 11 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

Comment: 10 MeV flux levels are still elevated but below the S1 threshold. Potential still exists for the S1 threshold to be exceeded

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

09:10 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1188
Issue Time: 2023 May 11 0910 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 May 11 0857 UTC
Estimated Velocity: 419 km/s

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

01:44 UTC

Space Weather Message Code: ALTTP4
Serial Number: 601
Issue Time: 2023 May 11 0144 UTC

ALERT: Type IV Radio Emission
Begin Time: 2023 May 11 0105 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

01:38 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1187
Issue Time: 2023 May 11 0138 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 May 11 0106 UTC
Estimated Velocity: 837 km/s

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

woensdag 10 mei 2023

23:52 UTC

Space Weather Message Code: WARPX1
Serial Number: 506
Issue Time: 2023 May 10 2352 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 505
Valid From: 2023 May 09 2300 UTC
Now Valid Until: 2023 May 11 1200 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

20:52 UTC

Space Weather Message Code: WARK04
Serial Number: 4373
Issue Time: 2023 May 10 2052 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4372
Valid From: 2023 May 09 2230 UTC
Now Valid Until: 2023 May 11 1200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

16:44 UTC

Space Weather Message Code: WATA50
Serial Number: 72
Issue Time: 2023 May 10 1644 UTC

WATCH: Geomagnetic Storm Category G3 Predicted

Highest Storm Level Predicted by Day:
May 10: G2 (Moderate) May 11: G3 (Strong) May 12: G2 (Moderate)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

13:24 UTC

Space Weather Message Code: ALTK05
Serial Number: 1463
Issue Time: 2023 May 10 1324 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 10 1323 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

11:06 UTC

Space Weather Message Code: WARPX1
Serial Number: 505
Issue Time: 2023 May 10 1106 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 504
Valid From: 2023 May 09 2300 UTC
Now Valid Until: 2023 May 10 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

08:47 UTC

Space Weather Message Code: WARK06
Serial Number: 484
Issue Time: 2023 May 10 0847 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 483
Valid From: 2023 May 10 0331 UTC
Now Valid Until: 2023 May 10 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

08:30 UTC

Space Weather Message Code: WARK04
Serial Number: 4372
Issue Time: 2023 May 10 0830 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4371
Valid From: 2023 May 09 2230 UTC
Now Valid Until: 2023 May 10 2100 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

08:29 UTC

Space Weather Message Code: WARK05
Serial Number: 1774
Issue Time: 2023 May 10 0829 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1773
Valid From: 2023 May 09 2240 UTC
Now Valid Until: 2023 May 10 1800 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

03:31 UTC

Space Weather Message Code: WARK06
Serial Number: 483
Issue Time: 2023 May 10 0331 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2023 May 10 0331 UTC
Valid To: 2023 May 10 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

03:25 UTC

Space Weather Message Code: ALTK05
Serial Number: 1462
Issue Time: 2023 May 10 0325 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 10 0317 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

02:56 UTC

Space Weather Message Code: WARK05
Serial Number: 1773
Issue Time: 2023 May 10 0256 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1772
Valid From: 2023 May 09 2240 UTC
Now Valid Until: 2023 May 10 0900 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

02:56 UTC

Space Weather Message Code: WARK04
Serial Number: 4371
Issue Time: 2023 May 10 0256 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4370
Valid From: 2023 May 09 2230 UTC
Now Valid Until: 2023 May 10 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

00:00 UTC

Space Weather Message Code: ALTK05
Serial Number: 1461
Issue Time: 2023 May 10 0000 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023 May 09 2359 UTC
Synoptic Period: 2100-0000 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

dinsdag 9 mei 2023

23:22 UTC

Space Weather Message Code: ALTPX1
Serial Number: 330
Issue Time: 2023 May 09 2322 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2023 May 09 2322 UTC
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

23:10 UTC

Space Weather Message Code: SUMSUD
Serial Number: 249
Issue Time: 2023 May 09 2310 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2023 May 09 2248 UTC
Deviation: 54 nT
Station: frd

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

23:01 UTC

Space Weather Message Code: WARPX1
Serial Number: 504
Issue Time: 2023 May 09 2301 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2023 May 09 2300 UTC
Valid To: 2023 May 10 1200 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

22:56 UTC

Space Weather Message Code: ALTK04
Serial Number: 2369
Issue Time: 2023 May 09 2256 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023 May 09 2256 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

22:41 UTC

Space Weather Message Code: WARK05
Serial Number: 1772
Issue Time: 2023 May 09 2241 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2023 May 09 2240 UTC
Valid To: 2023 May 10 0300 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

22:41 UTC

Space Weather Message Code: WARK04
Serial Number: 4370
Issue Time: 2023 May 09 2241 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4369
Valid From: 2023 May 09 2230 UTC
Now Valid Until: 2023 May 10 0900 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

22:30 UTC

Space Weather Message Code: WARK04
Serial Number: 4369
Issue Time: 2023 May 09 2230 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023 May 09 2230 UTC
Valid To: 2023 May 10 0300 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

22:27 UTC

Space Weather Message Code: WARSUD
Serial Number: 202
Issue Time: 2023 May 09 2227 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2023 May 09 2230 UTC
Valid To: 2023 May 09 2330 UTC
IP Shock Passage Observed: 2023 May 09 2210 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

21:07 UTC

Space Weather Message Code: SUM10R
Serial Number: 757
Issue Time: 2023 May 09 2107 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2023 May 09 2045 UTC
Maximum Time: 2023 May 09 2047 UTC
End Time: 2023 May 09 2048 UTC
Duration: 3 minutes
Peak Flux: 180 sfu
Latest Penticton Noon Flux: 180 sfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

20:55 UTC

Space Weather Message Code: ALTXMF
Serial Number: 310
Issue Time: 2023 May 09 2055 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2023 May 09 2051 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

19:55 UTC

Space Weather Message Code: WATA30
Serial Number: 218
Issue Time: 2023 May 09 1954 UTC

WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
May 10: G2 (Moderate) May 11: G1 (Minor) May 12: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

19:46 UTC

Space Weather Message Code: SUM10R
Serial Number: 756
Issue Time: 2023 May 09 1946 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2023 May 09 1834 UTC
Maximum Time: 2023 May 09 1852 UTC
End Time: 2023 May 09 1921 UTC
Duration: 47 minutes
Peak Flux: 1300 sfu
Latest Penticton Noon Flux: 172 sfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

19:32 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1186
Issue Time: 2023 May 09 1932 UTC

ALERT: Type II Radio Emission
Begin Time: 2023 May 09 1840 UTC
Estimated Velocity: 1892 km/s

Comment: Estimated velocity is likely too fast.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

19:21 UTC

Space Weather Message Code: ALTTP4
Serial Number: 600
Issue Time: 2023 May 09 1921 UTC

ALERT: Type IV Radio Emission
Begin Time: 2023 May 09 1837 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

16:16 UTC

Space Weather Message Code: SUMPX1
Serial Number: 96
Issue Time: 2023 May 09 1616 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2023 May 08 1240 UTC
Maximum Time: 2023 May 09 0150 UTC
End Time: 2023 May 09 1235 UTC
Maximum 10MeV Flux: 38 pfu
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

16:11 UTC

Space Weather Message Code: WARPX1
Serial Number: 503
Issue Time: 2023 May 09 1611 UTC

CANCEL WARNING: Proton 10MeV Integral Flux above 10pfu expected
Cancel Serial Number: 502
Original Issue Time: 2023 May 08 1127 UTC

Comment: 10MeV proton levels have dropped below 10pfu and remain consistently under 10pfu.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.