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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, March 31, 2025 21:43:12

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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 (Moderate) Radio Blackout 02 February

R2 (Moderate) Radio Blackout 02 February
published: Tuesday, February 04, 2025 14:58 UTC

Region 3977 produced an impulsive M5.1 flare at 02/1404 UTC. Additional R1-2 (Minor-Moderate) flare events are likely to continue over the next several days. Be sure to visit https://www.swpc.noaa.gov/products/3-day-forecast to stay up to date with the latest 3-day forecasts.