NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, April 02, 2025 17:28:59 UTC

Main menu

NOAA Scales mini

R1 (Minor) Radio Blackout Impacts
close
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

R3 (Strong) Radio Blackout Observed 23 February

R3 (Strong) Radio Blackout Observed 23 February
published: Monday, February 24, 2025 22:39 UTC

An X2.0 flare was observed at 23/1927 UTC. The source of this event appears to be a region that is on or just beyond the NW limb, possibly AR 4001. There is a slight chance for additional activity reaching this magnitude over the next few days. Visit https://www.swpc.noaa.gov/products/3-day-forecast for probabilistic flare forecast updates.