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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 25th, 2025 3:23:10 am
Space Weather Message Code: WARK04
- Serial Number: 5159
- Issue Time: 2025 Nov 25 0823 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5158
- Valid From: 2025 Nov 24 0226 UTC
- Now Valid Until: 2025 Nov 25 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: Nov 24th, 2025 9:24:32 pm
Space Weather Message Code: ALTK05
- Serial Number: 1916
- Issue Time: 2025 Nov 25 0224 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Nov 25 0216 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: Nov 24th, 2025 9:11:34 pm
Space Weather Message Code: WARK05
- Serial Number: 2140
- Issue Time: 2025 Nov 25 0211 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Nov 25 0211 UTC
- Valid To: 2025 Nov 25 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.
Geophysical Alert Message Issued: Nov 24th, 2025 6:54:17 pm
Space Weather Message Code: WARK04
- Serial Number: 5158
- Issue Time: 2025 Nov 24 2354 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5157
- Valid From: 2025 Nov 24 0226 UTC
- Now Valid Until: 2025 Nov 25 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: Nov 24th, 2025 9:07:59 am
Space Weather Message Code: ALTK05
- Serial Number: 1915
- Issue Time: 2025 Nov 24 1407 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Nov 24 1400 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.
Geophysical Alert Message Issued: Nov 24th, 2025 8:27:53 am
Space Weather Message Code: WARK05
- Serial Number: 2139
- Issue Time: 2025 Nov 24 1327 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Nov 24 1330 UTC
- Valid To: 2025 Nov 24 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.
Geophysical Alert Message Issued: Nov 24th, 2025 6:59:05 am
Space Weather Message Code: ALTK04
- Serial Number: 2610
- Issue Time: 2025 Nov 24 1159 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Nov 24 1159 UTC
- Synoptic Period: 0900-1200 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: Nov 23rd, 2025 9:27:21 pm
Space Weather Message Code: WARK04
- Serial Number: 5157
- Issue Time: 2025 Nov 24 0227 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Nov 24 0226 UTC
- Valid To: 2025 Nov 24 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 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: Nov 23rd, 2025 1:01:35 pm
Space Weather Message Code: ALTK04
- Serial Number: 2609
- Issue Time: 2025 Nov 23 1801 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Nov 23 1759 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: Nov 23rd, 2025 12:08:55 pm
Space Weather Message Code: WARK04
- Serial Number: 5156
- Issue Time: 2025 Nov 23 1708 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Nov 23 1708 UTC
- Valid To: 2025 Nov 23 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 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.
