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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, December 07, 2025 05:50:04

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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

M8.1 flare from Region 4299

R2 (Moderate) definition. GOES SUVI 284 image showing M8.1 flare.
M8.1 flare from Region 4299
published: Saturday, December 06, 2025 21:47 UTC

Active Region 4299, near the north-central part of the solar disk, produced an M8.1 flare (NOAA Scale R2-Moderate) that peaked at 06/2039 UTC. Analysis will be performed on any associated CMEs. Monitor our webpage for updates.

DAP - temp Head Section