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National Oceanic and Atmospheric Administration

Friday, June 20, 2025 00:16:53

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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) Event Observed - 19 Jun 2025

R3 (Strong) Event Observed - 19 Jun 2025
published: Friday, June 20, 2025 00:13 UTC

Region 4114 produced an impulsive X1.9 (R3-Strong) flare at 19/2350 UTC. The region is the largest and most magnetically complex on the solar disk despite being in a decay phase.