Tuesday, April 04, 2026 22:56:41 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	--

no data

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

R2 (Moderate) HF Radio Blackout Observed

published: Thursday, May 2, 2024 13:55 UTC UTC

Active Region 3654 produced an M9.5 flare at 30/2346 UTC. Additional R1-2 (Minor-Moderate) radio blackout events from this particular region are likely over the next 24 hours.