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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 30th, 2026 12:59:52 am
Space Weather Message Code: ALTEF3
- Serial Number: 3708
- Issue Time: 2026 Jun 30 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3707
- Begin Time: 2026 Jun 26 1345 UTC
- Yesterday Maximum 2MeV Flux: 2637 pfu
Geophysical Alert Message Issued: Jun 29th, 2026 1:02:33 am
Space Weather Message Code: ALTEF3
- Serial Number: 3707
- Issue Time: 2026 Jun 29 0502 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3706
- Begin Time: 2026 Jun 26 1345 UTC
- Yesterday Maximum 2MeV Flux: 2637 pfu
Geophysical Alert Message Issued: Jun 28th, 2026 6:41:25 am
Space Weather Message Code: WATA20
- Serial Number: 1114
- Issue Time: 2026 Jun 28 1041 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Jun 28: None (Below G1) Jun 29: G1 (Minor) Jun 30: 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: Jun 28th, 2026 1:07:19 am
Space Weather Message Code: ALTEF3
- Serial Number: 3706
- Issue Time: 2026 Jun 28 0507 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3705
- Begin Time: 2026 Jun 26 1345 UTC
- Yesterday Maximum 2MeV Flux: 3793 pfu
Geophysical Alert Message Issued: Jun 27th, 2026 3:13:20 am
Space Weather Message Code: ALTEF3
- Serial Number: 3705
- Issue Time: 2026 Jun 27 0713 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3704
- Begin Time: 2026 Jun 26 1345 UTC
- Yesterday Maximum 2MeV Flux: 1636 pfu
Geophysical Alert Message Issued: Jun 26th, 2026 10:06:14 am
Space Weather Message Code: ALTEF3
- Serial Number: 3704
- Issue Time: 2026 Jun 26 1406 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2026 Jun 26 1345 UTC
- Station: GOES-19
- Comment: Yesterday's max: 480 pfu
- Yesterday's max: 480 pfu
Geophysical Alert Message Issued: Jun 25th, 2026 7:43:25 pm
Space Weather Message Code: WARK04
- Serial Number: 5370
- Issue Time: 2026 Jun 25 2343 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5369
- Valid From: 2026 Jun 25 1939 UTC
- Now Valid Until: 2026 Jun 26 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 25th, 2026 3:39:22 pm
Space Weather Message Code: WARK04
- Serial Number: 5369
- Issue Time: 2026 Jun 25 1939 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jun 25 1939 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 25th, 2026 3:41:10 pm
Space Weather Message Code: ALTK04
- Serial Number: 2668
- Issue Time: 2026 Jun 25 1941 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Jun 25 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: Jun 25th, 2026 4:46:57 am
Space Weather Message Code: WARK04
- Serial Number: 5368
- Issue Time: 2026 Jun 25 0846 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5367
- Valid From: 2026 Jun 24 1740 UTC
- Now Valid Until: 2026 Jun 25 1800 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.
