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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, May 05, 2025 22:28:28

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
no data
S
no data
G
no data
Latest Observed
R
no data
S
no data
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
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R
no data
S
no data
G
no data
Current Space Weather Conditions
on NOAA Scales
R1 (Minor) Radio Blackout Impacts
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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 (Mod) HF Radio Blackout on 10 March 2024.

R2 (Mod) HF Radio Blackout on 10 March 2024.
published: Monday, March 11, 2024 22:58 UTC

Region 3599 produced an impulsive M7.4 X-ray flare (R2-Moderate radio blackout) at approximately 1213 UTC on 10 March 2024. Stay tuned to our webpage for the latest forecasts, watches, warnings, and alerts.