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.

zaterdag 25 september 2021

16:10 UTC

Space Weather Message Code: WATA30
Serial Number: 191
Issue Time: 2021 Sep 25 1610 UTC

WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
Sep 26: G1 (Minor) Sep 27: G2 (Moderate) Sep 28: 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.

04:48 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1101
Issue Time: 2021 Sep 25 0448 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 Sep 25 0345 UTC
Estimated Velocity: 739 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 23 september 2021

17:08 UTC

Space Weather Message Code: WATA20
Serial Number: 899
Issue Time: 2021 Sep 23 1708 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Sep 24: None (Below G1) Sep 25: None (Below G1) Sep 26: 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.

08:12 UTC

Space Weather Message Code: ALTK04
Serial Number: 2236
Issue Time: 2021 Sep 23 0812 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Sep 23 0812 UTC
Synoptic Period: 0600-0900 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.

08:10 UTC

Space Weather Message Code: WARK04
Serial Number: 3936
Issue Time: 2021 Sep 23 0810 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Sep 23 0805 UTC
Valid To: 2021 Sep 23 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.

05:21 UTC

Space Weather Message Code: ALTTP4
Serial Number: 552
Issue Time: 2021 Sep 23 0521 UTC

ALERT: Type IV Radio Emission
Begin Time: 2021 Sep 23 0454 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.

05:10 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1100
Issue Time: 2021 Sep 23 0510 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 Sep 23 0444 UTC
Estimated Velocity: 966 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 22 september 2021

08:43 UTC

Space Weather Message Code: WARK05
Serial Number: 1612
Issue Time: 2021 Sep 22 0843 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2021 Sep 22 0840 UTC
Valid To: 2021 Sep 22 1200 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.

08:28 UTC

Space Weather Message Code: WARK04
Serial Number: 3935
Issue Time: 2021 Sep 22 0828 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3934
Valid From: 2021 Sep 21 2223 UTC
Now Valid Until: 2021 Sep 22 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.

02:59 UTC

Space Weather Message Code: ALTK04
Serial Number: 2235
Issue Time: 2021 Sep 22 0259 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Sep 22 0259 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.

dinsdag 21 september 2021

22:24 UTC

Space Weather Message Code: WARK04
Serial Number: 3934
Issue Time: 2021 Sep 21 2224 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Sep 21 2223 UTC
Valid To: 2021 Sep 22 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.

zaterdag 18 september 2021

11:55 UTC

Space Weather Message Code: WARK04
Serial Number: 3933
Issue Time: 2021 Sep 18 1155 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3932
Valid From: 2021 Sep 17 0419 UTC
Now Valid Until: 2021 Sep 18 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.

vrijdag 17 september 2021

23:45 UTC

Space Weather Message Code: WARK06
Serial Number: 446
Issue Time: 2021 Sep 17 2345 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 445
Valid From: 2021 Sep 17 2025 UTC
Now Valid Until: 2021 Sep 18 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 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.

23:45 UTC

Space Weather Message Code: WARK05
Serial Number: 1611
Issue Time: 2021 Sep 17 2345 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1610
Valid From: 2021 Sep 17 2010 UTC
Now Valid Until: 2021 Sep 18 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.

22:43 UTC

Space Weather Message Code: ALTK05
Serial Number: 1338
Issue Time: 2021 Sep 17 2243 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2021 Sep 17 2240 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.

20:26 UTC

Space Weather Message Code: WARK06
Serial Number: 445
Issue Time: 2021 Sep 17 2026 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2021 Sep 17 2025 UTC
Valid To: 2021 Sep 17 2359 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.

20:15 UTC

Space Weather Message Code: ALTK05
Serial Number: 1337
Issue Time: 2021 Sep 17 2015 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2021 Sep 17 2014 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.

20:10 UTC

Space Weather Message Code: WARK05
Serial Number: 1610
Issue Time: 2021 Sep 17 2010 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2021 Sep 17 2010 UTC
Valid To: 2021 Sep 18 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.

19:45 UTC

Space Weather Message Code: WARK04
Serial Number: 3932
Issue Time: 2021 Sep 17 1945 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3931
Valid From: 2021 Sep 17 0419 UTC
Now Valid Until: 2021 Sep 18 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.

11:55 UTC

Space Weather Message Code: WARK04
Serial Number: 3931
Issue Time: 2021 Sep 17 1155 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3930
Valid From: 2021 Sep 17 0419 UTC
Now Valid Until: 2021 Sep 17 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.

06:01 UTC

Space Weather Message Code: ALTK04
Serial Number: 2234
Issue Time: 2021 Sep 17 0601 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Sep 17 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.

04:55 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1099
Issue Time: 2021 Sep 17 0455 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 Sep 17 0417 UTC
Estimated Velocity: 582 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.

04:20 UTC

Space Weather Message Code: WARK04
Serial Number: 3930
Issue Time: 2021 Sep 17 0420 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Sep 17 0419 UTC
Valid To: 2021 Sep 17 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.

zaterdag 11 september 2021

00:09 UTC

Space Weather Message Code: ALTK04
Serial Number: 2233
Issue Time: 2021 Sep 11 0009 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Sep 10 2359 UTC
Synoptic Period: 2100-0000 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.

vrijdag 10 september 2021

22:24 UTC

Space Weather Message Code: WARK04
Serial Number: 3929
Issue Time: 2021 Sep 10 2224 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Sep 10 2223 UTC
Valid To: 2021 Sep 11 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.

woensdag 08 september 2021

14:55 UTC

Space Weather Message Code: WARK04
Serial Number: 3928
Issue Time: 2021 Sep 08 1455 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3927
Valid From: 2021 Sep 08 0845 UTC
Now Valid Until: 2021 Sep 08 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.

10:07 UTC

Space Weather Message Code: ALTK04
Serial Number: 2232
Issue Time: 2021 Sep 08 1007 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Sep 08 1006 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.

08:43 UTC

Space Weather Message Code: WARK04
Serial Number: 3927
Issue Time: 2021 Sep 08 0843 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Sep 08 0845 UTC
Valid To: 2021 Sep 08 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.

00:54 UTC

Space Weather Message Code: ALTK04
Serial Number: 2231
Issue Time: 2021 Sep 08 0054 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Sep 08 0050 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.

00:41 UTC

Space Weather Message Code: ALTTP4
Serial Number: 551
Issue Time: 2021 Sep 08 0041 UTC

ALERT: Type IV Radio Emission
Begin Time: 2021 Sep 08 0006 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.

00:40 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1098
Issue Time: 2021 Sep 08 0040 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 Sep 08 0007 UTC
Estimated Velocity: 732 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.

00:36 UTC

Space Weather Message Code: WARK04
Serial Number: 3926
Issue Time: 2021 Sep 08 0036 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Sep 08 0035 UTC
Valid To: 2021 Sep 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.

dinsdag 07 september 2021

17:52 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3159
Issue Time: 2021 Sep 07 1752 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3158
Begin Time: 2021 Sep 06 1325 UTC
Yesterday Maximum 2MeV Flux: 3283 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 06 september 2021

13:48 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3158
Issue Time: 2021 Sep 06 1348 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2021 Sep 06 1325 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.

zondag 05 september 2021

14:45 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3157
Issue Time: 2021 Sep 05 1445 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2021 Sep 05 1345 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.

vrijdag 03 september 2021

12:22 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3156
Issue Time: 2021 Sep 03 1222 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3155
Begin Time: 2021 Aug 28 0205 UTC
Yesterday Maximum 2MeV Flux: 7837 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 02 september 2021

18:21 UTC

Space Weather Message Code: WATA30
Serial Number: 190
Issue Time: 2021 Sep 02 1821 UTC

CANCEL WATCH: Geomagnetic Storm Category G2 Predicted
Cancel Serial Number: 189
Original Issue Time: 2021 Aug 30 2039 UTC

Comment: G2 (Moderate) geomagnetic storm conditions no longer expected.

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.

05:31 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3155
Issue Time: 2021 Sep 02 0531 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3154
Begin Time: 2021 Aug 28 0205 UTC
Yesterday Maximum 2MeV Flux: 3639 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.

woensdag 01 september 2021

09:06 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3154
Issue Time: 2021 Sep 01 0906 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3153
Begin Time: 2021 Aug 28 0205 UTC
Yesterday Maximum 2MeV Flux: 2862 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.

dinsdag 31 augustus 2021

12:36 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3153
Issue Time: 2021 Aug 31 1236 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3152
Begin Time: 2021 Aug 28 0205 UTC
Yesterday Maximum 2MeV Flux: 4481 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 30 augustus 2021

20:39 UTC

Space Weather Message Code: WATA30
Serial Number: 189
Issue Time: 2021 Aug 30 2039 UTC

WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
Aug 31: None (Below G1) Sep 01: G1 (Minor) Sep 02: 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 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.

05:26 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3152
Issue Time: 2021 Aug 30 0526 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3151
Begin Time: 2021 Aug 28 0205 UTC
Yesterday Maximum 2MeV Flux: 11665 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.

zondag 29 augustus 2021

05:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3151
Issue Time: 2021 Aug 29 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3150
Begin Time: 2021 Aug 28 0205 UTC
Yesterday Maximum 2MeV Flux: 10655 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 28 augustus 2021

06:43 UTC

Space Weather Message Code: ALTTP4
Serial Number: 550
Issue Time: 2021 Aug 28 0643 UTC

ALERT: Type IV Radio Emission
Begin Time: 2021 Aug 28 0615 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.

06:33 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1097
Issue Time: 2021 Aug 28 0633 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 Aug 28 0604 UTC
Estimated Velocity: 276 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.

06:11 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1096
Issue Time: 2021 Aug 28 0611 UTC

ALERT: Type II Radio Emission
Begin Time: 2021 Aug 28 0509 UTC
Estimated Velocity: 723 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.

05:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3150
Issue Time: 2021 Aug 28 0500 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3149
Begin Time: 2021 Aug 28 0205 UTC
Yesterday Maximum 2MeV Flux: 2526 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.

02:28 UTC

Space Weather Message Code: WARK05
Serial Number: 1609
Issue Time: 2021 Aug 28 0228 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1608
Valid From: 2021 Aug 27 1800 UTC
Now Valid Until: 2021 Aug 28 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.

02:27 UTC

Space Weather Message Code: ALTK05
Serial Number: 1336
Issue Time: 2021 Aug 28 0227 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2021 Aug 28 0216 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.

02:26 UTC

Space Weather Message Code: WARK04
Serial Number: 3925
Issue Time: 2021 Aug 28 0226 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3924
Valid From: 2021 Aug 27 1615 UTC
Now Valid Until: 2021 Aug 28 1200 UTC
Warning Condition: Pesistence

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.

02:16 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3149
Issue Time: 2021 Aug 28 0216 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2021 Aug 28 0205 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.

vrijdag 27 augustus 2021

21:03 UTC

Space Weather Message Code: WATA20
Serial Number: 898
Issue Time: 2021 Aug 27 2103 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Aug 28: G1 (Minor) Aug 29: G1 (Minor) Aug 30: 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.

17:54 UTC

Space Weather Message Code: ALTK04
Serial Number: 2230
Issue Time: 2021 Aug 27 1754 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021 Aug 27 1750 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.

17:53 UTC

Space Weather Message Code: WARK05
Serial Number: 1608
Issue Time: 2021 Aug 27 1753 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2021 Aug 27 1800 UTC
Valid To: 2021 Aug 28 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.

16:14 UTC

Space Weather Message Code: WARK04
Serial Number: 3924
Issue Time: 2021 Aug 27 1614 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021 Aug 27 1615 UTC
Valid To: 2021 Aug 28 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.

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