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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: May 7th, 2026 12:37:40 pm
Space Weather Message Code: WARK04
- Serial Number: 5335
- Issue Time: 2026 May 07 1637 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 May 07 1635 UTC
- Valid To: 2026 May 08 1500 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: May 4th, 2026 10:49:25 pm
Space Weather Message Code: ALTK05
- Serial Number: 2016
- Issue Time: 2026 May 05 0249 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 May 05 0244 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: May 4th, 2026 7:55:23 pm
Space Weather Message Code: ALTK05
- Serial Number: 2015
- Issue Time: 2026 May 04 2355 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 May 04 2355 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.
Geophysical Alert Message Issued: May 4th, 2026 7:39:43 pm
Space Weather Message Code: WARK05
- Serial Number: 2232
- Issue Time: 2026 May 04 2339 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2231
- Valid From: 2026 May 04 1945 UTC
- Now Valid Until: 2026 May 05 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 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: May 4th, 2026 7:39:44 pm
Space Weather Message Code: WARK04
- Serial Number: 5334
- Issue Time: 2026 May 04 2339 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5333
- Valid From: 2026 May 04 1645 UTC
- Now Valid Until: 2026 May 05 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: May 4th, 2026 4:31:44 pm
Space Weather Message Code: WARK06
- Serial Number: 656
- Issue Time: 2026 May 04 2031 UTC
- WARNING: Geomagnetic K-Index of 6 expected
- Valid From: 2026 May 04 2031 UTC
- Valid To: 2026 May 05 0000 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: May 4th, 2026 4:32:50 pm
Space Weather Message Code: ALTK06
- Serial Number: 715
- Issue Time: 2026 May 04 2032 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2026 May 04 2032 UTC
- Synoptic Period: 1800-2100 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: May 4th, 2026 3:50:55 pm
Space Weather Message Code: WARK05
- Serial Number: 2231
- Issue Time: 2026 May 04 1950 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 May 04 1945 UTC
- Valid To: 2026 May 05 0000 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: May 4th, 2026 3:51:43 pm
Space Weather Message Code: ALTK05
- Serial Number: 2014
- Issue Time: 2026 May 04 1951 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 May 04 1951 UTC
- Synoptic Period: 1800-2100 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: May 4th, 2026 12:49:32 pm
Space Weather Message Code: WARK04
- Serial Number: 5333
- Issue Time: 2026 May 04 1649 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 May 04 1645 UTC
- Valid To: 2026 May 05 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.
