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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 10th, 2026 10:53:52 am
Space Weather Message Code: ALTEF3
- Serial Number: 3753
- Issue Time: 2026 Oct 10 1453 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Threshold Reached: 2026 Oct 10 1453 UTC
- Station: GOES-19
- Comment:
Geophysical Alert Message Issued: Oct 10th, 2026 10:45:19 am
Space Weather Message Code: WARSUD
- Serial Number: 259
- Issue Time: 2026 Oct 10 1445 UTC
- WARNING: Geomagnetic Sudden Impulse expected
- Valid From: 2026 Oct 10 1510 UTC
- Valid To: 2026 Oct 10 1550 UTC
- Ip Shock: 2026-10-10 14:43
- Comment:
Geophysical Alert Message Issued: Oct 10th, 2026 10:40:44 am
Space Weather Message Code: WARK04
- Serial Number: 5431
- Issue Time: 2026 Oct 10 1440 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5430
- Valid From: 2026 Oct 09 0128 UTC
- Now Valid Until: 2026 Oct 11 0600 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: Oct 10th, 2026 10:42:09 am
Space Weather Message Code: WARK05
- Serial Number: 2270
- Issue Time: 2026 Oct 10 1442 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Oct 10 1440 UTC
- Valid To: 2026 Oct 11 0300 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: Oct 10th, 2026 1:38:26 am
Space Weather Message Code: WARK04
- Serial Number: 5430
- Issue Time: 2026 Oct 10 0538 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5429
- Valid From: 2026 Oct 09 0128 UTC
- Now Valid Until: 2026 Oct 10 1500 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: Oct 9th, 2026 12:36:26 pm
Space Weather Message Code: WATA30
- Serial Number: 285
- Issue Time: 2026 Oct 09 1636 UTC
- WATCH: Geomagnetic Storm Category G2 Predicted
- Highest Storm Level Predicted by Day:
- Oct 09: G1 (Minor) Oct 10: G1 (Minor) Oct 11: G2 (Moderate)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment: Downgraded the G2 to a G1 watch for 09 Oct and added a G1 watch for 10 Oct 2026.
- 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: Oct 9th, 2026 6:01:02 am
Space Weather Message Code: ALTK04
- Serial Number: 2690
- Issue Time: 2026 Oct 09 1001 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Oct 09 1001 UTC
- Synoptic Period: 0900-1200
- 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 9th, 2026 4:12:52 am
Space Weather Message Code: WATA30
- Serial Number: 284
- Issue Time: 2026 Oct 09 0812 UTC
- WATCH: Geomagnetic Storm Category G2 Predicted
- Highest Storm Level Predicted by Day:
- Oct 10: None (Below G1) Oct 11: G2 (Moderate) Oct 12: 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 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: Oct 8th, 2026 9:29:51 pm
Space Weather Message Code: WARK04
- Serial Number: 5429
- Issue Time: 2026 Oct 09 0129 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Oct 09 0128 UTC
- Valid To: 2026 Oct 10 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 8th, 2026 12:44:50 pm
Space Weather Message Code: ALTTP4
- Serial Number: 719
- Issue Time: 2026 Oct 08 1644 UTC
- ALERT: Type IV Radio Emission
- Begin Time: 2026 Oct 08 1612 UTC
- Comment: Type IV recorded by Sagamore Hill RSTN site
