Wednesday, April 04, 2026 17:00:07 UTC

https://services.swpc.noaa.gov

Space Weather Conditions

24-Hour Observed Maximums

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Latest Observed

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R1-R2	--
R3-R5	--

S1 or greater	--

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R1-R2	--
R3-R5	--

S1 or greater	--

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R1-R2	--
R3-R5	--

S1 or greater	--

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Current Space Weather Conditions

on NOAA Scales

R1 (Minor) Radio Blackout Impacts

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 Radio Blackout on 6 September 2017

published: Wednesday, September 6, 2017 13:51 UTC UTC

An R3 (Strong) Radio Blackout occurred on 6 September from Region 2673 at 0910 UTC. Stay informed of the latest information and forecasts by continuing to visit our SWPC website.