Wednesday, April 04, 2026 23:10:51 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	--

no data

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

Underway - System Testing and Maintenance

published: Tuesday, February 8, 2022 14:50 UTC UTC

SWPC system testing and maintenance is underway and expected to end at 2330 UTC (1830 ET). You may notice disruptions in products and services during this time.