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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: Oct 21st, 2026 12:17:18 pm
Space Weather Message Code: WARK04
- Serial Number: 5438
- Issue Time: 2026 Oct 21 1617 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Oct 21 1616 UTC
- Valid To: 2026 Oct 22 0600 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: Oct 21st, 2026 12:29:25 am
Space Weather Message Code: ALTK04
- Serial Number: 2692
- Issue Time: 2026 Oct 21 0429 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Oct 21 0429 UTC
- Synoptic Period: 0300-0600
- 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: Oct 20th, 2026 10:05:20 pm
Space Weather Message Code: WARK04
- Serial Number: 5437
- Issue Time: 2026 Oct 21 0205 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Oct 21 0204 UTC
- Valid To: 2026 Oct 21 1200 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: Oct 20th, 2026 3:12:44 pm
Space Weather Message Code: WATA20
- Serial Number: 1132
- Issue Time: 2026 Oct 20 1912 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Oct 21: G1 (Minor) Oct 22: None (Below G1) Oct 23: None (Below G1)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- 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 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 19th, 2026 5:09:16 am
Space Weather Message Code: SUM10R
- Serial Number: 930
- Issue Time: 2026 Oct 19 0909 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2026 Oct 19 0858 UTC
- Maximum Time: 2026 Oct 19 0859 UTC
- End Time: 2026 Oct 19 0859 UTC
- Peak Flux: 430 sfu
- Duration: 1 minutes
- Latest Penticton Noon Flux: 137 sfu
- Comment:
Geophysical Alert Message Issued: Oct 18th, 2026 1:24:58 pm
Space Weather Message Code: WATA20
- Serial Number: 1131
- Issue Time: 2026 Oct 18 1724 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Oct 19: G1 (Minor) Oct 20: G1 (Minor) Oct 21: None (Below G1)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- 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 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 17th, 2026 4:14:23 pm
Space Weather Message Code: WATA20
- Serial Number: 1130
- Issue Time: 2026 Oct 17 2014 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Oct 18: None (Below G1) Oct 19: None (Below G1) Oct 20: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- 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 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 16th, 2026 3:38:53 pm
Space Weather Message Code: WARK04
- Serial Number: 5436
- Issue Time: 2026 Oct 16 1938 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Oct 16 1938 UTC
- Valid To: 2026 Oct 17 0300 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: Oct 16th, 2026 3:39:45 pm
Space Weather Message Code: ALTK04
- Serial Number: 2691
- Issue Time: 2026 Oct 16 1939 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Oct 16 1940 UTC
- Synoptic Period: 1800-2100
- 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: Oct 16th, 2026 10:19:49 am
Space Weather Message Code: ALTEF3
- Serial Number: 3754
- Issue Time: 2026 Oct 16 1419 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Threshold Reached: 2026 Oct 16 1345 UTC
- Station: GOES-19
- Comment:
