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National Oceanic and Atmospheric Administration

Friday, April 18, 2025 12:39:39 UTC

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NOAA Scales mini

R1 (Minor) Radio Blackout Impacts
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HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
More about the NOAA Space Weather Scales

G2 (Moderate) Geomagnetic Storms forecasted for 07-08 October

G2 (Moderate) Geomagnetic Storms forecasted for 07-08 October
published: Friday, October 09, 2015 13:54 UTC

Late on 07 October (EDT), SWPC forecasters are expecting the arrival of a large, equatorial coronal hole high speed stream (CH HSS). Geomagnetic conditions are expected to increase to G2 (Moderate) conditions on 07 and 08 October as a result. On it's previous transit 27 days ago, enhanced geomagnetic conditions were experienced with this positive polarity CH HSS. Check back often for further updates.