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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 4:28:01 pm
Space Weather Message Code: ALTK05
- Serial Number: 2029
- Issue Time: 2026 Jun 30 2028 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jun 30 2027 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: Jun 30th, 2026 3:46:34 pm
Space Weather Message Code: WARK04
- Serial Number: 5372
- Issue Time: 2026 Jun 30 1946 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5371
- Valid From: 2026 Jun 30 1209 UTC
- Now Valid Until: 2026 Jul 01 0900 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 30th, 2026 3:46:41 pm
Space Weather Message Code: WARK05
- Serial Number: 2244
- Issue Time: 2026 Jun 30 1943 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Jun 30 1943 UTC
- Valid To: 2026 Jul 01 0600 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: Jun 30th, 2026 1:11:38 pm
Space Weather Message Code: ALTK04
- Serial Number: 2669
- Issue Time: 2026 Jun 30 1711 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Jun 30 1711 UTC
- Synoptic Period: 1500-1800
- 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 30th, 2026 12:36:36 pm
Space Weather Message Code: WARPX1
- Serial Number: 627
- Issue Time: 2026 Jun 30 1636 UTC
- CANCEL WARNING: Proton 10MeV Integral Flux above 10pfu expected
- Cancel Serial Number: 626
- Original Issue Time: 2026 Jun 30 1600 UTC
- Conditions no longer justify warning.
- Conditions no longer justify warning.NOAA Scale: S1 - Minor
Geophysical Alert Message Issued: Jun 30th, 2026 12:00:16 pm
Space Weather Message Code: WARPX1
- Serial Number: 626
- Issue Time: 2026 Jun 30 1600 UTC
- WARNING: Proton 10MeV Integral Flux above 10pfu expected
- Valid From: 2026 Jun 30 1600 UTC
- Valid To: 2026 Jun 30 2359 UTC
- Warning Conditions: Onset
- Noaa Scale: S1 - Minor
- Comment:
- NOAA Scale: S1 - Minor
Geophysical Alert Message Issued: Jun 30th, 2026 9:40:13 am
Space Weather Message Code: SUMXM5
- Serial Number: 320
- Issue Time: 2026 Jun 30 1340 UTC
- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2026 Jun 30 1237 UTC
- Maximum Time: 2026 Jun 30 1257 UTC
- End Time: 2026 Jun 30 1323 UTC
- Xray Class: M5.8
- Optical Class: 3b
- Location: S07W55
- Noaa Scale: R2 - Moderate
- Comment: Corrected for end date as 30 June
- Corrected for end date as 30 JuneNOAA Scale: R2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
- Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
Geophysical Alert Message Issued: Jun 30th, 2026 9:32:19 am
Space Weather Message Code: SUMXM5
- Serial Number: 320
- Issue Time: 2026 Jun 30 1332 UTC
- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2026 Jun 30 1237 UTC
- Maximum Time: 2026 Jun 30 1257 UTC
- End Time: 2026 Jul 01 1323 UTC
- Xray Class: M5.8
- Optical Class: 3b
- Location: S07W55
- Noaa Scale: R2 - Moderate
- Comment:
- NOAA Scale: R2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
- Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
Geophysical Alert Message Issued: Jun 30th, 2026 8:52:12 am
Space Weather Message Code: ALTXMF
- Serial Number: 533
- Issue Time: 2026 Jun 30 1252 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2026 Jun 30 1251 UTC
- Noaa Scale: R2 - Moderate
- Comment:
- NOAA Scale: R2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
Geophysical Alert Message Issued: Jun 30th, 2026 8:10:11 am
Space Weather Message Code: WARK04
- Serial Number: 5371
- Issue Time: 2026 Jun 30 1210 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jun 30 1209 UTC
- Valid To: 2026 Jun 30 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.
