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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, December 21, 2024 19:36:22

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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
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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) HF Radio Blackout Event on 08 Dec 2024

R3 Strong radio blackout/GOES SUVI imagery
R3 (Strong) HF Radio Blackout Event on 08 Dec 2024
published: Monday, December 09, 2024 16:16 UTC

Region 3912 produced an X2.2/2b X-ray flare (R3-Strong radio blackout) on 08 Dec at 0906 UTC (0206 ET). A CME was observed in LASCO coronagraph imagery, beginning at approximately 08/0924 UTC (0224 ET), likely associated with the X-flare. Forecasters are analyzing the CME to determine if there is an Earth-directed component. Appropriate Watches/Warnings/Forecasts will be issued, pending the results of that analysis. Stay tuned to our webpage for the latest updates.