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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: Jun 25th, 2026 4:47:36 am
Space Weather Message Code: WARK05
- Serial Number: 2243
- Issue Time: 2026 Jun 25 0847 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2242
- Valid From: 2026 Jun 25 0337 UTC
- Now Valid Until: 2026 Jun 25 1500 UTC
- Warning Condition: Persistence
- 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: Jun 24th, 2026 11:41:32 pm
Space Weather Message Code: WARK05
- Serial Number: 2242
- Issue Time: 2026 Jun 25 0341 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Jun 25 0337 UTC
- Valid To: 2026 Jun 25 0900 UTC
- Warning Conditions: Onset
- Noaa Scale: G1 - Minor
- Comment: COR for end date/time
- COR for end date/timeNOAA 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: Jun 24th, 2026 11:56:40 pm
Space Weather Message Code: ALTK05
- Serial Number: 2028
- Issue Time: 2026 Jun 25 0356 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jun 25 0343 UTC
- Synoptic Period: 0300-0600
- Active Warning: YES
- Noaa Scale: G1 - Minor
- Comment:
- 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: Jun 24th, 2026 11:38:02 pm
Space Weather Message Code: WARK05
- Serial Number: 2242
- Issue Time: 2026 Jun 25 0338 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Jun 25 0337 UTC
- Valid To: 2026 Jun 26 0900 UTC
- Warning Conditions: Onset
- Noaa Scale: G1 - Minor
- Comment:
- 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: Jun 24th, 2026 7:54:45 pm
Space Weather Message Code: WARK04
- Serial Number: 5367
- Issue Time: 2026 Jun 24 2354 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5366
- Valid From: 2026 Jun 24 1740 UTC
- Now Valid Until: 2026 Jun 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: Jun 24th, 2026 3:04:12 pm
Space Weather Message Code: WARK04
- Serial Number: 5366
- Issue Time: 2026 Jun 24 1904 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jun 24 1740 UTC
- Valid To: 2026 Jun 24 2359 UTC
- Warning Conditions: Onset
- Comment: Correcting the wrong End Date
- Correcting the wrong End Date
- 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: Jun 24th, 2026 1:46:31 pm
Space Weather Message Code: WARK04
- Serial Number: 5366
- Issue Time: 2026 Jun 24 1746 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jun 24 1740 UTC
- Valid To: 2026 Jun 25 2359 UTC
- Warning Conditions: Onset
- Comment:
- 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: Jun 24th, 2026 1:48:29 pm
Space Weather Message Code: ALTK04
- Serial Number: 2667
- Issue Time: 2026 Jun 24 1748 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Jun 24 1746 UTC
- Synoptic Period: 1500-1800
- Active Warning: YES
- Comment:
- 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: Jun 21st, 2026 3:51:33 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1507
- Issue Time: 2026 Jun 21 1951 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Jun 21 1932 UTC
- Estimate Velocity: 380 km/s
- Comment:
Geophysical Alert Message Issued: Jun 21st, 2026 3:48:42 pm
Space Weather Message Code: SUMXM5
- Serial Number: 319
- Issue Time: 2026 Jun 21 1948 UTC
- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2026 Jun 21 1917 UTC
- Maximum Time: 2026 Jun 21 1929 UTC
- End Time: 2026 Jun 22 1935 UTC
- Xray Class: M6.8
- Optical Class: 2b
- Location: S07E55
- Noaa Scale: R2 - Moderate
- Comment:
- NOAA Scale: R2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
- Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
