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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 13th, 2025 4:07:12 pm
Space Weather Message Code: WATA30
- Serial Number: 249
- Issue Time: 2025 Apr 13 2007 UTC
- WATCH: Geomagnetic Storm Category G2 Predicted
- Highest Storm Level Predicted by Day:
- Apr 14: None (Below G1) Apr 15: None (Below G1) Apr 16: 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.
Geophysical Alert Message Issued: Apr 13th, 2025 4:19:12 am
Space Weather Message Code: WARK04
- Serial Number: 4921
- Issue Time: 2025 Apr 13 0819 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4920
- Valid From: 2025 Apr 12 1636 UTC
- Now Valid Until: 2025 Apr 13 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.
Geophysical Alert Message Issued: Apr 12th, 2025 6:45:13 pm
Space Weather Message Code: WARK04
- Serial Number: 4920
- Issue Time: 2025 Apr 12 2245 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4919
- Valid From: 2025 Apr 12 1636 UTC
- Now Valid Until: 2025 Apr 13 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.
Geophysical Alert Message Issued: Apr 12th, 2025 6:20:26 pm
Space Weather Message Code: WARK05
- Serial Number: 2017
- Issue Time: 2025 Apr 12 2220 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Apr 12 2220 UTC
- Valid To: 2025 Apr 13 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.
Geophysical Alert Message Issued: Apr 12th, 2025 1:46:32 pm
Space Weather Message Code: ALTK04
- Serial Number: 2544
- Issue Time: 2025 Apr 12 1746 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Apr 12 1746 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.
Geophysical Alert Message Issued: Apr 12th, 2025 12:36:57 pm
Space Weather Message Code: WARK04
- Serial Number: 4919
- Issue Time: 2025 Apr 12 1636 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Apr 12 1636 UTC
- Valid To: 2025 Apr 13 0300 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 12th, 2025 3:03:51 am
Space Weather Message Code: ALTEF3
- Serial Number: 3451
- Issue Time: 2025 Apr 12 0703 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3450
- 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 11th, 2025 7:41:11 pm
Space Weather Message Code: WARK04
- Serial Number: 4918
- Issue Time: 2025 Apr 11 2341 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4917
- Valid From: 2025 Apr 10 2243 UTC
- Now Valid Until: 2025 Apr 12 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 11th, 2025 1:55:29 pm
Space Weather Message Code: WARK04
- Serial Number: 4917
- Issue Time: 2025 Apr 11 1755 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4916
- Valid From: 2025 Apr 10 2243 UTC
- Now Valid Until: 2025 Apr 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.
Geophysical Alert Message Issued: Apr 11th, 2025 10:08:17 am
Space Weather Message Code: WATA20
- Serial Number: 1036
- Issue Time: 2025 Apr 11 1408 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Apr 12: G1 (Minor) Apr 13: None (Below G1) Apr 14: None (Below G1)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
- Induced Currents - Weak power grid fluctuations can occur.
- Spacecraft - Minor impact on satellite operations possible.
- Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
