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Having SatCom problems?
A burst of radiation on the sun's surface may trigger a geomagnetic storm, which can disrupt satellite communications.
In order to prevent unnecessary maintenance on satellite communications systems Air Sat One has provided a feed of Geophysical Events from NOAA's Space Weather Prediction Center. Check here to see if solar activity could be a cause of satellite communications problems.
Geophysical Alert Message Issued: Apr 11th, 2025 1:34:19 am
Space Weather Message Code: WARK04
- Serial Number: 4916
- Issue Time: 2025 Apr 11 0534 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4915
- Valid From: 2025 Apr 10 2243 UTC
- Now Valid Until: 2025 Apr 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.
Geophysical Alert Message Issued: Apr 11th, 2025 12:59:52 am
Space Weather Message Code: ALTEF3
- Serial Number: 3450
- Issue Time: 2025 Apr 11 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3449
- Begin Time: 2025 Apr 05 1225 UTC
- Yesterday Maximum 2MeV Flux: 3362 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Apr 10th, 2025 6:59:10 pm
Space Weather Message Code: WARK05
- Serial Number: 2016
- Issue Time: 2025 Apr 10 2259 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Apr 10 2300 UTC
- Valid To: 2025 Apr 11 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.
Geophysical Alert Message Issued: Apr 10th, 2025 6:46:43 pm
Space Weather Message Code: ALTK04
- Serial Number: 2543
- Issue Time: 2025 Apr 10 2246 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Apr 10 2247 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.
Geophysical Alert Message Issued: Apr 10th, 2025 6:42:01 pm
Space Weather Message Code: WARK04
- Serial Number: 4915
- Issue Time: 2025 Apr 10 2242 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Apr 10 2243 UTC
- Valid To: 2025 Apr 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.
Geophysical Alert Message Issued: Apr 10th, 2025 4:33:41 am
Space Weather Message Code: WARK04
- Serial Number: 4914
- Issue Time: 2025 Apr 10 0833 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4913
- Valid From: 2025 Apr 10 0107 UTC
- Now Valid Until: 2025 Apr 10 1500 UTC
- Warning Condition: Persistence
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Geophysical Alert Message Issued: Apr 10th, 2025 3:56:30 am
Space Weather Message Code: ALTEF3
- Serial Number: 3449
- Issue Time: 2025 Apr 10 0756 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3448
- Begin Time: 2025 Apr 05 1225 UTC
- Yesterday Maximum 2MeV Flux: 3893 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Apr 9th, 2025 9:41:23 pm
Space Weather Message Code: ALTK04
- Serial Number: 2542
- Issue Time: 2025 Apr 10 0141 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Apr 10 0141 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.
Geophysical Alert Message Issued: Apr 9th, 2025 9:08:09 pm
Space Weather Message Code: WARK04
- Serial Number: 4913
- Issue Time: 2025 Apr 10 0108 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Apr 10 0107 UTC
- Valid To: 2025 Apr 10 0900 UTC
- Warning Condition: Onset
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Geophysical Alert Message Issued: Apr 9th, 2025 4:39:11 am
Space Weather Message Code: WARK04
- Serial Number: 4912
- Issue Time: 2025 Apr 09 0839 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4911
- Valid From: 2025 Apr 07 2022 UTC
- Now Valid Until: 2025 Apr 09 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.
