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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 5th, 2025 4:06:07 pm
Space Weather Message Code: WARK05
- Serial Number: 2011
- Issue Time: 2025 Apr 05 2006 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Apr 05 2005 UTC
- Valid To: 2025 Apr 06 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 5th, 2025 1:56:01 pm
Space Weather Message Code: WARK04
- Serial Number: 4905
- Issue Time: 2025 Apr 05 1756 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4904
- Valid From: 2025 Apr 02 0123 UTC
- Now Valid Until: 2025 Apr 06 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.
Geophysical Alert Message Issued: Apr 5th, 2025 8:44:50 am
Space Weather Message Code: ALTEF3
- Serial Number: 3444
- Issue Time: 2025 Apr 05 1244 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2025 Apr 05 1225 UTC
- Station: GOES16
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Apr 5th, 2025 12:05:35 am
Space Weather Message Code: ALTK05
- Serial Number: 1739
- Issue Time: 2025 Apr 05 0405 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Apr 05 0405 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.
Geophysical Alert Message Issued: Apr 4th, 2025 8:49:45 pm
Space Weather Message Code: WARK05
- Serial Number: 2010
- Issue Time: 2025 Apr 05 0049 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Apr 05 0050 UTC
- Valid To: 2025 Apr 05 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.
Geophysical Alert Message Issued: Apr 4th, 2025 8:51:57 pm
Space Weather Message Code: ALTK05
- Serial Number: 1738
- Issue Time: 2025 Apr 05 0051 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Apr 05 0051 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.
Geophysical Alert Message Issued: Apr 4th, 2025 10:11:37 pm
Space Weather Message Code: WARK06
- Serial Number: 571
- Issue Time: 2025 Apr 05 0211 UTC
- WARNING: Geomagnetic K-Index of 6 expected
- Valid From: 2025 Apr 05 0210 UTC
- Valid To: 2025 Apr 05 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.
Geophysical Alert Message Issued: Apr 4th, 2025 11:00:31 pm
Space Weather Message Code: ALTK06
- Serial Number: 623
- Issue Time: 2025 Apr 05 0300 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2025 Apr 05 0259 UTC
- Synoptic Period: 0000-0300 UTC
- Active Warning: Yes
- NOAA Scale: G2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
- Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
- Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
- Radio - HF (high frequency) radio propagation can fade at higher latitudes.
- Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Geophysical Alert Message Issued: Apr 4th, 2025 8:47:37 pm
Space Weather Message Code: WARK04
- Serial Number: 4904
- Issue Time: 2025 Apr 05 0047 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4903
- Valid From: 2025 Apr 02 0123 UTC
- Now Valid Until: 2025 Apr 05 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 4th, 2025 7:19:44 pm
Space Weather Message Code: ALTK05
- Serial Number: 1737
- Issue Time: 2025 Apr 04 2319 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Apr 04 2317 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.
