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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: Nov 1st, 2025 1:00:18 am
Space Weather Message Code: ALTEF3
- Serial Number: 3552
- Issue Time: 2025 Nov 01 0500 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3551
- Begin Time: 2025 Oct 31 1250 UTC
- Yesterday Maximum 2MeV Flux: 4767 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Oct 31st, 2025 5:07:07 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1437
- Issue Time: 2025 Oct 31 2107 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Oct 31 2013 UTC
- Estimated Velocity: 542 km/s
- 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.
Geophysical Alert Message Issued: Oct 31st, 2025 10:27:15 am
Space Weather Message Code: WARK05
- Serial Number: 2128
- Issue Time: 2025 Oct 31 1427 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2127
- Valid From: 2025 Oct 29 2344 UTC
- Now Valid Until: 2025 Oct 31 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.
Geophysical Alert Message Issued: Oct 31st, 2025 9:09:59 am
Space Weather Message Code: ALTEF3
- Serial Number: 3551
- Issue Time: 2025 Oct 31 1309 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2025 Oct 31 1250 UTC
- Station: GOES19
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Oct 31st, 2025 2:02:24 am
Space Weather Message Code: ALTK05
- Serial Number: 1890
- Issue Time: 2025 Oct 31 0602 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Oct 31 0559 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: Oct 31st, 2025 1:49:16 am
Space Weather Message Code: WARK04
- Serial Number: 5127
- Issue Time: 2025 Oct 31 0549 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5126
- Valid From: 2025 Oct 27 2325 UTC
- Now Valid Until: 2025 Oct 31 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.
Geophysical Alert Message Issued: Oct 30th, 2025 7:52:54 pm
Space Weather Message Code: WARK05
- Serial Number: 2126
- Issue Time: 2025 Oct 30 2352 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2125
- Valid From: 2025 Oct 29 2344 UTC
- Now Valid Until: 2025 Oct 31 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 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: Oct 30th, 2025 12:50:46 pm
Space Weather Message Code: ALTK05
- Serial Number: 1889
- Issue Time: 2025 Oct 30 1650 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Oct 30 1645 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.
Geophysical Alert Message Issued: Oct 30th, 2025 12:36:46 pm
Space Weather Message Code: WARK04
- Serial Number: 5126
- Issue Time: 2025 Oct 30 1636 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5125
- Valid From: 2025 Oct 27 2325 UTC
- Now Valid Until: 2025 Oct 31 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.
Geophysical Alert Message Issued: Oct 30th, 2025 10:54:43 am
Space Weather Message Code: WARK05
- Serial Number: 2125
- Issue Time: 2025 Oct 30 1454 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2124
- Valid From: 2025 Oct 29 2344 UTC
- Now Valid Until: 2025 Oct 30 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.
