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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, December 11, 2025 21:52:39

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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

News Archive

Previous SWPC news items.

DAP - temp Head Section

News Archive

Originally Posted
S3 (Strong) Solar Radiation Storm in Progress S3 (Strong) Solar Radiation Storm in Progress Wednesday, October 9, 2024 - 13:58
G4 Geomagnetic Storm Watch with coronagraph image G4 (Severe) Storm Watch for 10-11 October Wednesday, October 9, 2024 - 13:35
R3 event R3 (Strong) HF Radio Blackout Event Wednesday, October 9, 2024 - 02:28
Comet Tsuchinshan-ATLAS Comes into View of Coronagraph Imagery Comet Tsuchinshan-ATLAS Comes into View of Coronagraph Imagery Tuesday, October 8, 2024 - 14:18
G3 G3 Conditions Observed Tuesday, October 8, 2024 - 04:34

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