Wednesday, April 04, 2026 12:32:11 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

G1 Watch Expanded

G1 Watch Expanded

published: Friday, December 9, 2016 22:30 UTC UTC

Further analysis suggests G1 minor storm conditions are now likely 07-09 December as a negative polarity CH HSS influences the near-Earth environment. The G1 Watch has been expanded to include all 3 of these days.