SOLE
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R
Blackout radio
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S
Tempeste solari
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G
Tempeste geomagnetiche
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Quiet
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Quiet
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Quiet
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ULTIMO MESSAGGIO DI ALLERTA DAL NOAA
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Space Weather Message Code: WATA30
Serial Number: 254
Issue Time: 2025 Jun 23 1700 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Jun 24: None (Below G1) Jun 25: G2 (Moderate) Jun 26: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: Recurrent, negative polarity coronal hole high speed stream influence is likely to bring minor to moderate geomagnetic storming 25-26 Jun.
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.
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