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National Oceanic and Atmospheric Administration

Saturday, April 26, 2025 08:36:01

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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

R3 (Strong) Radio Blackout Observed 23 February

R3 (Strong) Radio Blackout Observed 23 February
published: Monday, February 24, 2025 22:39 UTC

An X2.0 flare was observed at 23/1927 UTC. The source of this event appears to be a region that is on or just beyond the NW limb, possibly AR 4001. There is a slight chance for additional activity reaching this magnitude over the next few days. Visit https://www.swpc.noaa.gov/products/3-day-forecast for probabilistic flare forecast updates.