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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: Sep 4th, 2026 4:07:08 pm
Space Weather Message Code: ALTTP4
- Serial Number: 717
- Issue Time: 2026 Sep 04 2007 UTC
- ALERT: Type IV Radio Emission
- Begin Time: 2026 Sep 04 1924 UTC
- Comment:
Geophysical Alert Message Issued: Sep 4th, 2026 8:08:53 am
Space Weather Message Code: ALTEF3
- Serial Number: 3735
- Issue Time: 2026 Sep 04 1208 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3734
- Begin Time: 2026 Aug 31 1146 UTC
- Yesterday Maximum 2MeV Flux: 830 pfu
- Max time: 2026 Sep 04 1200 UTC
Geophysical Alert Message Issued: Sep 3rd, 2026 12:44:28 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1527
- Issue Time: 2026 Sep 03 1644 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Sep 03 1629 UTC
- Estimate Velocity: 1,359 km/s
- Comment:
Geophysical Alert Message Issued: Sep 3rd, 2026 6:31:48 am
Space Weather Message Code: ALTEF3
- Serial Number: 3734
- Issue Time: 2026 Sep 03 1031 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3733
- Begin Time: 2026 Aug 31 1146 UTC
- Yesterday Maximum 2MeV Flux: 1239 pfu
- Max time: 2026 Sep 03 1020 UTC
Geophysical Alert Message Issued: Sep 2nd, 2026 3:55:34 pm
Space Weather Message Code: ALTTP4
- Serial Number: 716
- Issue Time: 2026 Sep 02 1955 UTC
- ALERT: Type IV Radio Emission
- Begin Time: 2026 Sep 02 1920 UTC
- Comment:
Geophysical Alert Message Issued: Sep 2nd, 2026 3:45:39 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1526
- Issue Time: 2026 Sep 02 1945 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Sep 02 1919 UTC
- Estimate Velocity: 1,181 km/s
- Comment:
Geophysical Alert Message Issued: Sep 2nd, 2026 6:14:14 am
Space Weather Message Code: ALTEF3
- Serial Number: 3733
- Issue Time: 2026 Sep 02 1014 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3732
- Begin Time: 2026 Aug 31 1146 UTC
- Yesterday Maximum 2MeV Flux: 1201 pfu
- Max time: 2026 Sep 02 1000 UTC
Geophysical Alert Message Issued: Sep 1st, 2026 3:37:17 am
Space Weather Message Code: ALTEF3
- Serial Number: 3732
- Issue Time: 2026 Sep 01 0737 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3731
- Begin Time: 2026 Aug 31 1146 UTC
- Yesterday Maximum 2MeV Flux: 1030 pfu
- Max time: 2026 Sep 01 0730 UTC
Geophysical Alert Message Issued: Aug 31st, 2026 7:47:00 am
Space Weather Message Code: ALTEF3
- Serial Number: 3731
- Issue Time: 2026 Aug 31 1147 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Threshold Reached: 2026 Aug 31 1146 UTC
- Station: GOES-19
- Comment: Yesterday's max: 1264 pfu
Geophysical Alert Message Issued: Aug 31st, 2026 4:58:42 am
Space Weather Message Code: WARK04
- Serial Number: 5411
- Issue Time: 2026 Aug 31 0858 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Aug 31 0858 UTC
- Valid To: 2026 Aug 31 1500 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.


