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 22 september 2018

02:45 UTC

Space Weather Message Code: ALTK05
Serial Number: 1243
Issue Time: 2018 Sep 22 0245 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Sep 22 0245 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: ALTK05
Serial Number: 1242
Issue Time: 2018 Sep 22 0001 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Sep 21 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.

vrijdag 21 september 2018

23:56 UTC

Space Weather Message Code: WARK05
Serial Number: 1496
Issue Time: 2018 Sep 21 2356 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2018 Sep 21 2355 UTC
Valid To: 2018 Sep 22 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.

23:44 UTC

Space Weather Message Code: ALTK04
Serial Number: 2077
Issue Time: 2018 Sep 21 2344 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Sep 21 2345 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.

23:33 UTC

Space Weather Message Code: WARK04
Serial Number: 3537
Issue Time: 2018 Sep 21 2333 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Sep 21 2335 UTC
Valid To: 2018 Sep 22 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.

09:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2849
Issue Time: 2018 Sep 21 0900 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2848
Begin Time: 2018 Sep 12 1730 UTC
Yesterday Maximum 2MeV Flux: 8309 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 20 september 2018

15:43 UTC

Space Weather Message Code: WATA20
Serial Number: 837
Issue Time: 2018 Sep 20 1543 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Sep 21: None (Below G1) Sep 22: None (Below G1) Sep 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.

09:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2848
Issue Time: 2018 Sep 20 0900 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2847
Begin Time: 2018 Sep 12 1730 UTC
Yesterday Maximum 2MeV Flux: 8688 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 19 september 2018

09:01 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2847
Issue Time: 2018 Sep 19 0901 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2846
Begin Time: 2018 Sep 12 1730 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.

dinsdag 18 september 2018

10:36 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2846
Issue Time: 2018 Sep 18 1036 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2845
Begin Time: 2018 Sep 12 1730 UTC
Yesterday Maximum 2MeV Flux: 17212 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 17 september 2018

14:24 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2845
Issue Time: 2018 Sep 17 1424 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2844
Begin Time: 2018 Sep 12 1730 UTC
Yesterday Maximum 2MeV Flux: 34945 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.

03:21 UTC

Space Weather Message Code: WARK04
Serial Number: 3536
Issue Time: 2018 Sep 17 0321 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Sep 17 0320 UTC
Valid To: 2018 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.

zondag 16 september 2018

08:59 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2844
Issue Time: 2018 Sep 16 0859 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2843
Begin Time: 2018 Sep 12 1730 UTC
Yesterday Maximum 2MeV Flux: 30449 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 15 september 2018

08:59 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2843
Issue Time: 2018 Sep 15 0859 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2842
Begin Time: 2018 Sep 12 1730 UTC
Yesterday Maximum 2MeV Flux: 42518 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.

vrijdag 14 september 2018

08:59 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2842
Issue Time: 2018 Sep 14 0859 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2841
Begin Time: 2018 Sep 12 1730 UTC
Yesterday Maximum 2MeV Flux: 6646 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.

03:02 UTC

Space Weather Message Code: ALTK05
Serial Number: 1241
Issue Time: 2018 Sep 14 0302 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Sep 14 0259 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.

02:35 UTC

Space Weather Message Code: WARK05
Serial Number: 1495
Issue Time: 2018 Sep 14 0235 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2018 Sep 14 0235 UTC
Valid To: 2018 Sep 14 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.

02:22 UTC

Space Weather Message Code: ALTK04
Serial Number: 2076
Issue Time: 2018 Sep 14 0222 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Sep 14 0222 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.

01:06 UTC

Space Weather Message Code: WARK04
Serial Number: 3535
Issue Time: 2018 Sep 14 0106 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Sep 14 0105 UTC
Valid To: 2018 Sep 14 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.

donderdag 13 september 2018

14:56 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2841
Issue Time: 2018 Sep 13 1456 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2840
Begin Time: 2018 Sep 12 1730 UTC
Yesterday Maximum 2MeV Flux: 2290 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.

11:32 UTC

Space Weather Message Code: WARK04
Serial Number: 3534
Issue Time: 2018 Sep 13 1132 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3533
Valid From: 2018 Sep 13 0000 UTC
Now Valid Until: 2018 Sep 13 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.

05:29 UTC

Space Weather Message Code: WARK04
Serial Number: 3533
Issue Time: 2018 Sep 13 0529 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3532
Valid From: 2018 Sep 13 0000 UTC
Now Valid Until: 2018 Sep 13 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.

01:52 UTC

Space Weather Message Code: ALTK04
Serial Number: 2075
Issue Time: 2018 Sep 13 0152 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Sep 13 0152 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.

woensdag 12 september 2018

23:57 UTC

Space Weather Message Code: WARK04
Serial Number: 3532
Issue Time: 2018 Sep 12 2357 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Sep 13 0000 UTC
Valid To: 2018 Sep 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.

17:50 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2840
Issue Time: 2018 Sep 12 1750 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2018 Sep 12 1730 UTC
Station: GOES15


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 11 september 2018

23:44 UTC

Space Weather Message Code: WARK04
Serial Number: 3531
Issue Time: 2018 Sep 11 2344 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3530
Valid From: 2018 Sep 10 1610 UTC
Now Valid Until: 2018 Sep 12 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.

11:10 UTC

Space Weather Message Code: WARK04
Serial Number: 3530
Issue Time: 2018 Sep 11 1110 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3529
Valid From: 2018 Sep 10 1610 UTC
Now Valid Until: 2018 Sep 11 2359 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.

11:10 UTC

Space Weather Message Code: WARK05
Serial Number: 1494
Issue Time: 2018 Sep 11 1110 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1493
Valid From: 2018 Sep 11 0423 UTC
Now Valid Until: 2018 Sep 11 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 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.

11:10 UTC

Space Weather Message Code: WARK06
Serial Number: 424
Issue Time: 2018 Sep 11 1110 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 423
Valid From: 2018 Sep 11 0805 UTC
Now Valid Until: 2018 Sep 11 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 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.

10:50 UTC

Space Weather Message Code: ALTK06
Serial Number: 469
Issue Time: 2018 Sep 11 1050 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2018 Sep 11 1050 UTC
Synoptic Period: 0900-1200 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.

10:08 UTC

Space Weather Message Code: ALTK05
Serial Number: 1240
Issue Time: 2018 Sep 11 1008 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Sep 11 1008 UTC
Synoptic Period: 0900-1200 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.

08:17 UTC

Space Weather Message Code: ALTK06
Serial Number: 468
Issue Time: 2018 Sep 11 0817 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2018 Sep 11 0817 UTC
Synoptic Period: 0600-0900 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.

08:04 UTC

Space Weather Message Code: WARK06
Serial Number: 423
Issue Time: 2018 Sep 11 0804 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2018 Sep 11 0805 UTC
Valid To: 2018 Sep 11 1200 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.

07:39 UTC

Space Weather Message Code: ALTK05
Serial Number: 1239
Issue Time: 2018 Sep 11 0739 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Sep 11 0739 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.

04:37 UTC

Space Weather Message Code: ALTK05
Serial Number: 1238
Issue Time: 2018 Sep 11 0437 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Sep 11 0436 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.

04:25 UTC

Space Weather Message Code: WARK04
Serial Number: 3529
Issue Time: 2018 Sep 11 0425 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3528
Valid From: 2018 Sep 10 1610 UTC
Now Valid Until: 2018 Sep 11 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.

04:24 UTC

Space Weather Message Code: WARK05
Serial Number: 1493
Issue Time: 2018 Sep 11 0424 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2018 Sep 11 0423 UTC
Valid To: 2018 Sep 11 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.

maandag 10 september 2018

23:44 UTC

Space Weather Message Code: ALTK05
Serial Number: 1237
Issue Time: 2018 Sep 10 2344 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Sep 10 2344 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.

21:01 UTC

Space Weather Message Code: ALTK05
Serial Number: 1236
Issue Time: 2018 Sep 10 2101 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Sep 10 2059 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.

20:36 UTC

Space Weather Message Code: WARK05
Serial Number: 1492
Issue Time: 2018 Sep 10 2036 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1491
Valid From: 2018 Sep 10 1730 UTC
Now Valid Until: 2018 Sep 11 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 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.

20:36 UTC

Space Weather Message Code: WARK04
Serial Number: 3528
Issue Time: 2018 Sep 10 2036 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3527
Valid From: 2018 Sep 10 1610 UTC
Now Valid Until: 2018 Sep 11 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.

17:45 UTC

Space Weather Message Code: ALTK05
Serial Number: 1235
Issue Time: 2018 Sep 10 1745 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Sep 10 1745 UTC
Synoptic Period: 1500-1800 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.

17:33 UTC

Space Weather Message Code: ALTK04
Serial Number: 2074
Issue Time: 2018 Sep 10 1733 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Sep 10 1733 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.

17:29 UTC

Space Weather Message Code: WARK05
Serial Number: 1491
Issue Time: 2018 Sep 10 1729 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2018 Sep 10 1730 UTC
Valid To: 2018 Sep 10 2100 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.

16:11 UTC

Space Weather Message Code: WARK04
Serial Number: 3527
Issue Time: 2018 Sep 10 1611 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Sep 10 1610 UTC
Valid To: 2018 Sep 10 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.

zondag 09 september 2018

20:30 UTC

Space Weather Message Code: WATA30
Serial Number: 175
Issue Time: 2018 Sep 09 2030 UTC

WATCH: Geomagnetic Storm Category G2 Predicted

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

19:53 UTC

Space Weather Message Code: WATA20
Serial Number: 836
Issue Time: 2018 Sep 09 1953 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Sep 10: None (Below G1) Sep 11: G1 (Minor) Sep 12: 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.

zaterdag 08 september 2018

21:27 UTC

Space Weather Message Code: WATA20
Serial Number: 835
Issue Time: 2018 Sep 08 2127 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Sep 09: None (Below G1) Sep 10: None (Below G1) Sep 11: 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.

18:12 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2839
Issue Time: 2018 Sep 08 1812 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2018 Sep 08 1750 UTC
Station: GOES15


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 06 september 2018

18:39 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2838
Issue Time: 2018 Sep 06 1839 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2018 Sep 06 1815 UTC
Station: GOES15


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 05 september 2018

15:27 UTC

Space Weather Message Code: WARK04
Serial Number: 3526
Issue Time: 2018 Sep 05 1527 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Sep 05 1526 UTC
Valid To: 2018 Sep 05 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.

02:39 UTC

Space Weather Message Code: ALTK04
Serial Number: 2073
Issue Time: 2018 Sep 05 0239 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Sep 05 0239 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.

02:08 UTC

Space Weather Message Code: WARK04
Serial Number: 3525
Issue Time: 2018 Sep 05 0208 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Sep 05 0210 UTC
Valid To: 2018 Sep 05 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 04 september 2018

17:06 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2837
Issue Time: 2018 Sep 04 1706 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2836
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 12435 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 03 september 2018

09:46 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2836
Issue Time: 2018 Sep 03 0946 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2835
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 16682 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 02 september 2018

09:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2835
Issue Time: 2018 Sep 02 0900 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2834
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 20417 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 01 september 2018

09:01 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2834
Issue Time: 2018 Sep 01 0901 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2833
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 31634 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.

vrijdag 31 augustus 2018

08:59 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2833
Issue Time: 2018 Aug 31 0859 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2832
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 61001 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 30 augustus 2018

09:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2832
Issue Time: 2018 Aug 30 0900 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2831
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 57922 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 29 augustus 2018

08:59 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2831
Issue Time: 2018 Aug 29 0859 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2830
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 97635 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 28 augustus 2018

09:01 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2830
Issue Time: 2018 Aug 28 0901 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2829
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 39767 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.

02:03 UTC

Space Weather Message Code: WARK04
Serial Number: 3524
Issue Time: 2018 Aug 28 0203 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3523
Valid From: 2018 Aug 25 2109 UTC
Now Valid Until: 2018 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 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 27 augustus 2018

19:14 UTC

Space Weather Message Code: WARK05
Serial Number: 1490
Issue Time: 2018 Aug 27 1914 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1489
Valid From: 2018 Aug 27 1632 UTC
Now Valid Until: 2018 Aug 27 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 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.

19:12 UTC

Space Weather Message Code: ALTK05
Serial Number: 1234
Issue Time: 2018 Aug 27 1912 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Aug 27 1912 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.

18:37 UTC

Space Weather Message Code: WARK04
Serial Number: 3523
Issue Time: 2018 Aug 27 1837 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3522
Valid From: 2018 Aug 25 2109 UTC
Now Valid Until: 2018 Aug 28 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.

17:59 UTC

Space Weather Message Code: ALTK06
Serial Number: 467
Issue Time: 2018 Aug 27 1759 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2018 Aug 27 1759 UTC
Synoptic Period: 1500-1800 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.

17:49 UTC

Space Weather Message Code: WARK06
Serial Number: 422
Issue Time: 2018 Aug 27 1749 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2018 Aug 27 1748 UTC
Valid To: 2018 Aug 27 2000 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.

17:39 UTC

Space Weather Message Code: ALTK05
Serial Number: 1233
Issue Time: 2018 Aug 27 1739 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Aug 27 1739 UTC
Synoptic Period: 1500-1800 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.

16:33 UTC

Space Weather Message Code: WARK05
Serial Number: 1489
Issue Time: 2018 Aug 27 1633 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2018 Aug 27 1632 UTC
Valid To: 2018 Aug 27 2000 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.

13:59 UTC

Space Weather Message Code: WARK04
Serial Number: 3522
Issue Time: 2018 Aug 27 1359 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3521
Valid From: 2018 Aug 25 2109 UTC
Now Valid Until: 2018 Aug 27 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.

09:02 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2829
Issue Time: 2018 Aug 27 0902 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2828
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 6146 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.

08:56 UTC

Space Weather Message Code: WARK04
Serial Number: 3521
Issue Time: 2018 Aug 27 0856 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3520
Valid From: 2018 Aug 25 2109 UTC
Now Valid Until: 2018 Aug 27 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.

zondag 26 augustus 2018

23:49 UTC

Space Weather Message Code: WARK04
Serial Number: 3520
Issue Time: 2018 Aug 26 2349 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3519
Valid From: 2018 Aug 25 2109 UTC
Now Valid Until: 2018 Aug 27 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.

23:39 UTC

Space Weather Message Code: WARK05
Serial Number: 1488
Issue Time: 2018 Aug 26 2339 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1487
Valid From: 2018 Aug 25 2146 UTC
Now Valid Until: 2018 Aug 27 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.

20:36 UTC

Space Weather Message Code: WARK06
Serial Number: 421
Issue Time: 2018 Aug 26 2036 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2018 Aug 26 2035 UTC
Valid To: 2018 Aug 26 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.

20:23 UTC

Space Weather Message Code: ALTK05
Serial Number: 1232
Issue Time: 2018 Aug 26 2023 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Aug 26 2020 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.

16:25 UTC

Space Weather Message Code: ALTK06
Serial Number: 466
Issue Time: 2018 Aug 26 1625 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2018 Aug 26 1623 UTC
Synoptic Period: 1500-1800 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.

16:14 UTC

Space Weather Message Code: WARK06
Serial Number: 420
Issue Time: 2018 Aug 26 1614 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2018 Aug 26 1613 UTC
Valid To: 2018 Aug 26 1800 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.

16:14 UTC

Space Weather Message Code: WARK05
Serial Number: 1487
Issue Time: 2018 Aug 26 1614 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1486
Valid From: 2018 Aug 25 2146 UTC
Now Valid Until: 2018 Aug 26 2359 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.

16:02 UTC

Space Weather Message Code: ALTK05
Serial Number: 1231
Issue Time: 2018 Aug 26 1602 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Aug 26 1602 UTC
Synoptic Period: 1500-1800 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.

15:41 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2828
Issue Time: 2018 Aug 26 1541 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2827
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 1929 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.

14:21 UTC

Space Weather Message Code: ALTK05
Serial Number: 1230
Issue Time: 2018 Aug 26 1421 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Aug 26 1418 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.

11:34 UTC

Space Weather Message Code: ALTK05
Serial Number: 1229
Issue Time: 2018 Aug 26 1134 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Aug 26 1134 UTC
Synoptic Period: 0900-1200 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.

11:33 UTC

Space Weather Message Code: WARK04
Serial Number: 3519
Issue Time: 2018 Aug 26 1133 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3518
Valid From: 2018 Aug 25 2109 UTC
Now Valid Until: 2018 Aug 26 2359 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.

11:33 UTC

Space Weather Message Code: WARK05
Serial Number: 1486
Issue Time: 2018 Aug 26 1133 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1485
Valid From: 2018 Aug 25 2146 UTC
Now Valid Until: 2018 Aug 26 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.

07:39 UTC

Space Weather Message Code: WARK07
Serial Number: 75
Issue Time: 2018 Aug 26 0739 UTC

EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 74
Valid From: 2018 Aug 26 0444 UTC
Now Valid Until: 2018 Aug 26 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 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.

07:39 UTC

Space Weather Message Code: ALTK07
Serial Number: 113
Issue Time: 2018 Aug 26 0739 UTC

ALERT: Geomagnetic K-index of 7
Threshold Reached: 2018 Aug 26 0738 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes
NOAA Scale: G3 - Strong

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.

07:07 UTC

Space Weather Message Code: WARK06
Serial Number: 419
Issue Time: 2018 Aug 26 0707 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 418
Valid From: 2018 Aug 26 0241 UTC
Now Valid Until: 2018 Aug 26 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 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.

07:06 UTC

Space Weather Message Code: ALTK06
Serial Number: 465
Issue Time: 2018 Aug 26 0706 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2018 Aug 26 0706 UTC
Synoptic Period: 0600-0900 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.

06:38 UTC

Space Weather Message Code: ALTK05
Serial Number: 1228
Issue Time: 2018 Aug 26 0638 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Aug 26 0637 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.

06:01 UTC

Space Weather Message Code: ALTK07
Serial Number: 112
Issue Time: 2018 Aug 26 0601 UTC

ALERT: Geomagnetic K-index of 7
Threshold Reached: 2018 Aug 26 0559 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G3 - Strong

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.

04:44 UTC

Space Weather Message Code: WARK07
Serial Number: 74
Issue Time: 2018 Aug 26 0444 UTC

WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2018 Aug 26 0444 UTC
Valid To: 2018 Aug 26 0900 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater - Strong to Extreme

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.

04:25 UTC

Space Weather Message Code: ALTK06
Serial Number: 464
Issue Time: 2018 Aug 26 0425 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2018 Aug 26 0425 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.

03:46 UTC

Space Weather Message Code: ALTK05
Serial Number: 1227
Issue Time: 2018 Aug 26 0346 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Aug 26 0346 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.

02:57 UTC

Space Weather Message Code: ALTK06
Serial Number: 463
Issue Time: 2018 Aug 26 0257 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2018 Aug 26 0257 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.

02:41 UTC

Space Weather Message Code: WARK05
Serial Number: 1485
Issue Time: 2018 Aug 26 0241 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1484
Valid From: 2018 Aug 25 2146 UTC
Now Valid Until: 2018 Aug 26 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 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.

02:41 UTC

Space Weather Message Code: WARK06
Serial Number: 418
Issue Time: 2018 Aug 26 0241 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2018 Aug 26 0241 UTC
Valid To: 2018 Aug 26 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.

02:13 UTC

Space Weather Message Code: WARK04
Serial Number: 3518
Issue Time: 2018 Aug 26 0213 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3517
Valid From: 2018 Aug 25 2109 UTC
Now Valid Until: 2018 Aug 26 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.

01:54 UTC

Space Weather Message Code: ALTK05
Serial Number: 1226
Issue Time: 2018 Aug 26 0154 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Aug 26 0154 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.

zaterdag 25 augustus 2018

21:46 UTC

Space Weather Message Code: WARK05
Serial Number: 1484
Issue Time: 2018 Aug 25 2146 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2018 Aug 25 2146 UTC
Valid To: 2018 Aug 26 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.

21:43 UTC

Space Weather Message Code: ALTK04
Serial Number: 2072
Issue Time: 2018 Aug 25 2143 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Aug 25 2143 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.

21:09 UTC

Space Weather Message Code: WARK04
Serial Number: 3517
Issue Time: 2018 Aug 25 2109 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Aug 25 2109 UTC
Valid To: 2018 Aug 26 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.

17:16 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2827
Issue Time: 2018 Aug 25 1716 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2826
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 1967 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.

vrijdag 24 augustus 2018

12:31 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2826
Issue Time: 2018 Aug 24 1231 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2825
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 4038 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 23 augustus 2018

10:35 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2825
Issue Time: 2018 Aug 23 1035 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2824
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 4095 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.

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Ruimteweer feitjes

Laatste X-klasse uitbarsting:10/09/2017X8.2
Laatste M-klasse uitbarsting:20/10/2017M1.0
Laatste geomagnetische storm:21/09/2018Kp5 (G1)
Aantal zonnevlekkenloze dagen in 2018:150
Huidig periode aantal zonnevlekkenloze dagen:10

Deze dag in de geschiedenis*

Zonnevlammen
12011X1.4
22011M1.1
32011C8.9
42000C8.5
52001C8.1
ApG
1199950G4
2199628G1
3200317
4200416
5200712
*sinds 1994

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