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.

vrijdag 18 juni 2021

07:21 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3144
Issue Time: 2021 Jun 18 0721 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3143
Begin Time: 2021 Jun 17 0835 UTC
Yesterday Maximum 2MeV Flux: 4862 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 17 juni 2021

08:37 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3143
Issue Time: 2021 Jun 17 0837 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2021 Jun 17 0835 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.

woensdag 16 juni 2021

02:55 UTC

Space Weather Message Code: WARK05
Serial Number: 1606
Issue Time: 2021 Jun 16 0255 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1605
Valid From: 2021 Jun 15 2055 UTC
Now Valid Until: 2021 Jun 16 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.

02:55 UTC

Space Weather Message Code: WARK04
Serial Number: 3913
Issue Time: 2021 Jun 16 0255 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3912
Valid From: 2021 Jun 15 1345 UTC
Now Valid Until: 2021 Jun 16 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.

dinsdag 15 juni 2021

21:01 UTC

Space Weather Message Code: ALTK05
Serial Number: 1334
Issue Time: 2021 Jun 15 2101 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2021 Jun 15 2100 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.

20:58 UTC

Space Weather Message Code: ALTK04
Serial Number: 2224
Issue Time: 2021 Jun 15 2058 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Jun 15 2057 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.

20:58 UTC

Space Weather Message Code: WARK05
Serial Number: 1605
Issue Time: 2021 Jun 15 2058 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2021 Jun 15 2055 UTC
Valid To: 2021 Jun 16 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.

20:58 UTC

Space Weather Message Code: WARK04
Serial Number: 3912
Issue Time: 2021 Jun 15 2058 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3911
Valid From: 2021 Jun 15 1345 UTC
Now Valid Until: 2021 Jun 16 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.

13:39 UTC

Space Weather Message Code: WARK04
Serial Number: 3911
Issue Time: 2021 Jun 15 1339 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Jun 15 1345 UTC
Valid To: 2021 Jun 15 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.

12:14 UTC

Space Weather Message Code: WATA20
Serial Number: 896
Issue Time: 2021 Jun 15 1214 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Jun 16: G1 (Minor) Jun 17: G1 (Minor) Jun 18: 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.

zondag 13 juni 2021

01:21 UTC

Space Weather Message Code: WARK04
Serial Number: 3910
Issue Time: 2021 Jun 13 0121 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Jun 13 0121 UTC
Valid To: 2021 Jun 13 0600 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 12 juni 2021

04:52 UTC

Space Weather Message Code: ALTK04
Serial Number: 2223
Issue Time: 2021 Jun 12 0452 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Jun 12 0452 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.

04:00 UTC

Space Weather Message Code: WARK04
Serial Number: 3909
Issue Time: 2021 Jun 12 0400 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Jun 12 0400 UTC
Valid To: 2021 Jun 12 1200 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 09 juni 2021

12:21 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1088
Issue Time: 2021 Jun 09 1221 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 Jun 09 1201 UTC
Estimated Velocity: 2812 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 08 juni 2021

00:06 UTC

Space Weather Message Code: ALTK04
Serial Number: 2222
Issue Time: 2021 Jun 08 0006 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Jun 07 2359 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.

maandag 07 juni 2021

23:41 UTC

Space Weather Message Code: WARK04
Serial Number: 3908
Issue Time: 2021 Jun 07 2341 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Jun 07 2340 UTC
Valid To: 2021 Jun 08 0600 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.

19:22 UTC

Space Weather Message Code: WARK04
Serial Number: 3907
Issue Time: 2021 Jun 07 1922 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Jun 07 1922 UTC
Valid To: 2021 Jun 07 2300 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 29 mei 2021

08:36 UTC

Space Weather Message Code: ALTPX1
Serial Number: 319
Issue Time: 2021 May 29 0836 UTC

CANCEL ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Cancel Serial Number: 318
Original Issue Time: 2021 May 29 0319 UTC

Comment: 10 MeV proton flux greater than 10 pfu no longer observed.

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.

08:35 UTC

Space Weather Message Code: WARPX1
Serial Number: 475
Issue Time: 2021 May 29 0835 UTC

CANCEL WARNING: Proton 10MeV Integral Flux above 10pfu expected
Cancel Serial Number: 474
Original Issue Time: 2021 May 29 0043 UTC

Comment: The 10 MeV proton flux decreased below 10 pfu. S1 (Minor) solar radiation storms are no longer expected.

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.

08:31 UTC

Space Weather Message Code: SUMPX1
Serial Number: 86
Issue Time: 2021 May 29 0831 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2021 May 29 0300 UTC
Maximum Time: 2021 May 29 0320 UTC
End Time: 2021 May 29 0540 UTC
Maximum 10MeV Flux: 15 pfu
NOAA Scale: S1 - Minor

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

03:19 UTC

Space Weather Message Code: ALTPX1
Serial Number: 318
Issue Time: 2021 May 29 0319 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2021 May 29 0300 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.

00:43 UTC

Space Weather Message Code: WARPX1
Serial Number: 474
Issue Time: 2021 May 29 0043 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2021 May 29 0042 UTC
Valid To: 2021 May 29 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.

00:25 UTC

Space Weather Message Code: ALTTP4
Serial Number: 549
Issue Time: 2021 May 29 0025 UTC

ALERT: Type IV Radio Emission
Begin Time: 2021 May 28 2301 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.

00:24 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1087
Issue Time: 2021 May 29 0024 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 May 28 2303 UTC
Estimated Velocity: 2087 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.

donderdag 27 mei 2021

02:45 UTC

Space Weather Message Code: WARK05
Serial Number: 1604
Issue Time: 2021 May 27 0245 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2021 May 27 0244 UTC
Valid To: 2021 May 27 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.

02:44 UTC

Space Weather Message Code: WARK04
Serial Number: 3906
Issue Time: 2021 May 27 0244 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3905
Valid From: 2021 May 26 1625 UTC
Now Valid Until: 2021 May 27 1200 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 26 mei 2021

20:28 UTC

Space Weather Message Code: ALTK05
Serial Number: 1333
Issue Time: 2021 May 26 2028 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2021 May 26 2028 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.

18:30 UTC

Space Weather Message Code: ALTK04
Serial Number: 2221
Issue Time: 2021 May 26 1830 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 May 26 1828 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.

18:22 UTC

Space Weather Message Code: WARK05
Serial Number: 1603
Issue Time: 2021 May 26 1822 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2021 May 26 1825 UTC
Valid To: 2021 May 26 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.

18:21 UTC

Space Weather Message Code: WARK04
Serial Number: 3905
Issue Time: 2021 May 26 1821 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3904
Valid From: 2021 May 26 1625 UTC
Now Valid Until: 2021 May 27 0559 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.

16:22 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3142
Issue Time: 2021 May 26 1622 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3141
Begin Time: 2021 May 24 1805 UTC
Yesterday Maximum 2MeV Flux: 1531 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.

16:21 UTC

Space Weather Message Code: WARK04
Serial Number: 3904
Issue Time: 2021 May 26 1621 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 May 26 1625 UTC
Valid To: 2021 May 26 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.

13:18 UTC

Space Weather Message Code: SUMSUD
Serial Number: 230
Issue Time: 2021 May 26 1318 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2021 May 26 1252 UTC
Deviation: 20 nT
Station: Newport

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

12:02 UTC

Space Weather Message Code: WARSUD
Serial Number: 183
Issue Time: 2021 May 26 1203 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2021 May 26 1250 UTC
Valid To: 2021 May 26 1330 UTC
IP Shock Passage Observed: 2021 May 26 1148 UTC

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

dinsdag 25 mei 2021

12:43 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3141
Issue Time: 2021 May 25 1243 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3140
Begin Time: 2021 May 24 1805 UTC
Yesterday Maximum 2MeV Flux: 1263 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.

maandag 24 mei 2021

18:12 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3140
Issue Time: 2021 May 24 1812 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2021 May 24 1805 UTC
Station: GOES 16


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.

07:49 UTC

Space Weather Message Code: WATA30
Serial Number: 188
Issue Time: 2021 May 24 0749 UTC

WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
May 25: G1 (Minor) May 26: G2 (Moderate) May 27: 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 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 23 mei 2021

20:10 UTC

Space Weather Message Code: WATA30
Serial Number: 187
Issue Time: 2021 May 23 2010 UTC

WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
May 24: None (Below G1) May 25: G1 (Minor) May 26: G2 (Moderate)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: Minor to moderate geomagnetic storm levels are expected on 25-26 May due to CME effects.

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.

05:48 UTC

Space Weather Message Code: SUM10R
Serial Number: 716
Issue Time: 2021 May 23 0548 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2021 May 23 0506 UTC
Maximum Time: 2021 May 23 0506 UTC
End Time: 2021 May 23 0506 UTC
Duration: 0 minutes
Peak Flux: 91 sfu
Latest Penticton Noon Flux: 76 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.

zaterdag 22 mei 2021

07:11 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1086
Issue Time: 2021 May 22 0711 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 May 22 0618 UTC
Estimated Velocity: 653 km/s

Comment: Velocity estimates are provided by the Air Force's solar observatory network.

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.

07:10 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1085
Issue Time: 2021 May 22 0710 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 May 22 0254 UTC
Estimated Velocity: 1530 km/s

Comment: Velocity estimates are provided by the Air Force's solar observatory network.

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.

donderdag 20 mei 2021

17:57 UTC

Space Weather Message Code: WARK04
Serial Number: 3903
Issue Time: 2021 May 20 1757 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3902
Valid From: 2021 May 20 0900 UTC
Now Valid Until: 2021 May 21 0300 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.

13:48 UTC

Space Weather Message Code: ALTK05
Serial Number: 1332
Issue Time: 2021 May 20 1348 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2021 May 20 1336 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.

12:12 UTC

Space Weather Message Code: WARK05
Serial Number: 1602
Issue Time: 2021 May 20 1212 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2021 May 20 1213 UTC
Valid To: 2021 May 20 1800 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.

11:24 UTC

Space Weather Message Code: ALTK04
Serial Number: 2220
Issue Time: 2021 May 20 1124 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 May 20 1124 UTC
Synoptic Period: 0900-1200 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.

08:57 UTC

Space Weather Message Code: WARK04
Serial Number: 3902
Issue Time: 2021 May 20 0857 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 May 20 0900 UTC
Valid To: 2021 May 20 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.