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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, December 03, 2025 21:16:31

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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

Space Weather Story of the Week for 1 - 5 December, 2025

Space Weather Story of the Week for 1 - 5 December, 2025
Space Weather Story of the Week for 1 - 5 December, 2025
published: Tuesday, December 02, 2025 16:26 UTC

Sunspot Clusters, Solar Flares, CMEs, and a Coronal Hole High Speed Stream (CH HSS) - these are the primary solar activity threats and events during the week. Stay informed at the Nation's official source for space weather forecasts at http://spaceweather.gov

DAP - temp Head Section