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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, March 31, 2025 05:28:35

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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

The return of the X-flares

R3 Event 11 Feb, 2023
The return of the X-flares
published: Wednesday, February 15, 2023 18:49 UTC

Active Region 3217 produced an R3 radio blackout

(i.e. X1.1 flare) which peaked at 1548 UTC or 10:48am EST.

More flares are expected from this region as it moves across the sun creating occasional degradation of high frequency (3-30 MHz) communication.

Visit www.spaceweather.gov for the latest information.