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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 26th, 2026 1:17:56 am
Space Weather Message Code: ALTEF3
- Serial Number: 3758
- Issue Time: 2026 Oct 26 0517 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3757
- Begin Time: 2026 Oct 23 1140 UTC
- Yesterday Maximum 2MeV Flux: 2864 pfu
- Max time: 2026 Oct 25 1820 UTC
Geophysical Alert Message Issued: Oct 25th, 2026 5:27:50 am
Space Weather Message Code: ALTEF3
- Serial Number: 3757
- Issue Time: 2026 Oct 25 0927 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3756
- Begin Time: 2026 Oct 23 1140 UTC
- Yesterday Maximum 2MeV Flux: 3259 pfu
- Max time: 2026 Oct 24 1530 UTC
Geophysical Alert Message Issued: Oct 24th, 2026 5:04:23 am
Space Weather Message Code: ALTEF3
- Serial Number: 3756
- Issue Time: 2026 Oct 24 0904 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3755
- Begin Time: 2026 Oct 23 1140 UTC
- Yesterday Maximum 2MeV Flux: 3169 pfu
- Max time: 2026 Oct 23 1540 UTC
Geophysical Alert Message Issued: Oct 23rd, 2026 3:55:04 pm
Space Weather Message Code: ALTK04
- Serial Number: 2694
- Issue Time: 2026 Oct 23 1955 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Oct 23 1953 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 23rd, 2026 3:27:05 pm
Space Weather Message Code: WARK04
- Serial Number: 5443
- Issue Time: 2026 Oct 23 1927 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Oct 23 1926 UTC
- Valid To: 2026 Oct 24 0900 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 23rd, 2026 7:47:50 am
Space Weather Message Code: ALTEF3
- Serial Number: 3755
- Issue Time: 2026 Oct 23 1147 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Threshold Reached: 2026 Oct 23 1140 UTC
- Station: GOES-19
- Comment:
Geophysical Alert Message Issued: Oct 22nd, 2026 4:21:43 pm
Space Weather Message Code: WARK04
- Serial Number: 5442
- Issue Time: 2026 Oct 22 2021 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5441
- Valid From: 2026 Oct 21 1616 UTC
- Now Valid Until: 2026 Oct 23 0300 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 22nd, 2026 12:48:36 pm
Space Weather Message Code: WARK04
- Serial Number: 5441
- Issue Time: 2026 Oct 22 1648 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5440
- Valid From: 2026 Oct 21 1616 UTC
- Now Valid Until: 2026 Oct 22 2100 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 22nd, 2026 10:24:34 am
Space Weather Message Code: WARK04
- Serial Number: 5440
- Issue Time: 2026 Oct 22 1424 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5439
- Valid From: 2026 Oct 21 1616 UTC
- Now Valid Until: 2026 Oct 22 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.
Geophysical Alert Message Issued: Oct 22nd, 2026 1:32:43 am
Space Weather Message Code: WARK04
- Serial Number: 5439
- Issue Time: 2026 Oct 22 0532 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5438
- Valid From: 2026 Oct 21 1616 UTC
- Now Valid Until: 2026 Oct 22 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.
