NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 08, 2025 22:39:15 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

Tutorial on electric power grid impacts

Tutorial on electric power grid impacts
published: Tuesday, March 17, 2015 15:05 UTC

Learn more about how this storm may be impacting the power grid.

Follow this link to the SWPC About Space Weather Impacts page.