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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, November 22, 2025 00:57:37

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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.

News Archive

Originally Posted
G1-G3 Still Likely Tonight, 12 Nov, with G4 Still Possible G1-G3 Still Likely Tonight, 12 Nov, with G4 Still Possible Thursday, November 13, 2025 - 02:16
G4 Watch Continues into 13 November G4 Watch Continues into 13 November Wednesday, November 12, 2025 - 21:50
G3 (Strong) geomagnetic storming continues, G4 (Severe) still expected Wednesday, November 12, 2025 - 13:27
CME Passage Continues 11-12 November CME Passage Continues; G1-G4 Levels Possible Through the Night! Wednesday, November 12, 2025 - 05:18
G4 Levels Reached! G4 (Severe) Storm Levels Reached! Wednesday, November 12, 2025 - 01:40

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