Online Rec. P.533-14 Propagation Prediction

WWV Report: Jun 21, 2025, 3:05:00 AM

Previous 24 Hours

Space weather for the past 24 hours has been minor. Radio blackouts reaching the R1 level occurred.

Next 24 Hours

Space weather for the next 24 hours is predicted to be moderate. Radio blackouts reaching the R2 level are likely.

Data Source: noaa.gov.

Space Weather Resources

Scales (NOAA): An explanation of the scales used in the gauges above.
Impacts of Space Weather (NOAA): A brief summary of the impacts of space weather on radio communication.
Understanding Solar Indices (ARRL): Ian Poole's excellent introduction to space weather and the various indices by which it's characterised.