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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: Nov 2nd, 2026 7:03:53 am
Space Weather Message Code: ALTEF3
- Serial Number: 3764
- Issue Time: 2026 Nov 02 1203 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3763
- Begin Time: 2026 Nov 01 1302 UTC
- Yesterday Maximum 2MeV Flux: 5350 pfu
- Max time: 2026 Nov 01 1550 UTC
Geophysical Alert Message Issued: Nov 1st, 2026 9:57:52 am
Space Weather Message Code: WARK04
- Serial Number: 5446
- Issue Time: 2026 Nov 01 1457 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5445
- Valid From: 2026 Oct 31 1235 UTC
- Now Valid Until: 2026 Nov 01 2359 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: Nov 1st, 2026 8:02:29 am
Space Weather Message Code: ALTEF3
- Serial Number: 3763
- Issue Time: 2026 Nov 01 1302 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Threshold Reached: 2026 Nov 01 1302 UTC
- Station: GOES-19
- Comment:
Geophysical Alert Message Issued: Oct 31st, 2026 9:17:17 pm
Space Weather Message Code: ALTK05
- Serial Number: 2060
- Issue Time: 2026 Nov 01 0117 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Nov 01 0117 UTC
- Synoptic Period: 0000-0300
- 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: Oct 31st, 2026 8:08:14 pm
Space Weather Message Code: WARK05
- Serial Number: 2274
- Issue Time: 2026 Nov 01 0008 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Nov 01 0007 UTC
- Valid To: 2026 Nov 01 0900 UTC
- Warning Conditions: Persistence
- Noaa Scale: G1 - Minor
- Comment: Re-issued due to technical issues with end date of previous warning.
- 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 31st, 2026 3:14:22 pm
Space Weather Message Code: ALTK06
- Serial Number: 729
- Issue Time: 2026 Oct 31 1914 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2026 Oct 31 1914 UTC
- Synoptic Period: 1800-2100
- Active Warning: YES
- Noaa Scale: G2 - Moderate
- Comment:
- 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: Oct 31st, 2026 3:07:47 pm
Space Weather Message Code: ALTK05
- Serial Number: 2059
- Issue Time: 2026 Oct 31 1907 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Oct 31 1907 UTC
- Synoptic Period: 1800-2100
- 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: Oct 31st, 2026 3:08:30 pm
Space Weather Message Code: WARK06
- Serial Number: 673
- Issue Time: 2026 Oct 31 1908 UTC
- WARNING: Geomagnetic K-index of 6 expected
- Valid From: 2026 Oct 31 1908 UTC
- Valid To: 2026 Oct 31 2359 UTC
- Warning Conditions: Onset
- Noaa Scale: G2 - Moderate
- Comment:
- 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: Oct 31st, 2026 3:04:48 pm
Space Weather Message Code: WARK05
- Serial Number: 2273
- Issue Time: 2026 Oct 31 1904 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Oct 31 1901 UTC
- Valid To: 2026 Oct 31 2359 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 31st, 2026 2:47:57 pm
Space Weather Message Code: ALTK04
- Serial Number: 2696
- Issue Time: 2026 Oct 31 1847 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Oct 31 1845 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.
