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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: Mar 21st, 2025 11:13:32 pm
Space Weather Message Code: WATA50
- Serial Number: 85
- Issue Time: 2025 Mar 22 0313 UTC
- WATCH: Geomagnetic Storm Category G3 Predicted
- Highest Storm Level Predicted by Day:
- Mar 23: G3 (Strong) Mar 24: G1 (Minor) Mar 25: G2 (Moderate)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
- Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
- Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
- Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
- Radio - HF (high frequency) radio may be intermittent.
- Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Geophysical Alert Message Issued: Mar 21st, 2025 11:37:54 pm
Space Weather Message Code: ALTK05
- Serial Number: 1724
- Issue Time: 2025 Mar 22 0337 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 22 0335 UTC
- Synoptic Period: 0300-0600 UTC
- Active Warning: Yes
- 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: Mar 21st, 2025 9:40:00 pm
Space Weather Message Code: ALTK05
- Serial Number: 1723
- Issue Time: 2025 Mar 22 0139 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 22 0136 UTC
- Synoptic Period: 0000-0300 UTC
- Active Warning: Yes
- 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: Mar 21st, 2025 7:35:23 pm
Space Weather Message Code: ALTK05
- Serial Number: 1722
- Issue Time: 2025 Mar 21 2335 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 21 2330 UTC
- Synoptic Period: 2100-2400 UTC
- Active Warning: Yes
- 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: Mar 21st, 2025 3:43:20 pm
Space Weather Message Code: WARK06
- Serial Number: 567
- Issue Time: 2025 Mar 21 1943 UTC
- WARNING: Geomagnetic K-Index of 6 expected
- Valid From: 2025 Mar 21 1945 UTC
- Valid To: 2025 Mar 22 0600 UTC
- Warning Condition: Onset
- 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: Mar 21st, 2025 2:55:39 pm
Space Weather Message Code: ALTK05
- Serial Number: 1721
- Issue Time: 2025 Mar 21 1855 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 21 1855 UTC
- Synoptic Period: 1800-2100 UTC
- Active Warning: Yes
- 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: Mar 21st, 2025 1:31:23 pm
Space Weather Message Code: ALTK04
- Serial Number: 2537
- Issue Time: 2025 Mar 21 1731 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Mar 21 1730 UTC
- Synoptic Period: 1500-1800 UTC
- Active Warning: Yes
- 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: Mar 21st, 2025 1:33:14 pm
Space Weather Message Code: WARK05
- Serial Number: 1996
- Issue Time: 2025 Mar 21 1733 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Mar 21 1732 UTC
- Valid To: 2025 Mar 22 0900 UTC
- Warning Condition: Onset
- 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: Mar 21st, 2025 1:12:21 pm
Space Weather Message Code: WARK04
- Serial Number: 4881
- Issue Time: 2025 Mar 21 1712 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Mar 21 1715 UTC
- Valid To: 2025 Mar 22 0900 UTC
- Warning Condition: Onset
- 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: Mar 21st, 2025 12:12:11 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1407
- Issue Time: 2025 Mar 21 1612 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Mar 21 1557 UTC
- Estimated Velocity: 242 km/s
- Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
