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National Oceanic and Atmospheric Administration

Wednesday, November 12, 2025 16:36:27

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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
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Latest Observed
R
no data
S
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G
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R1-R2 --
R3-R5 --
S1 or greater --
G
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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
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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

G4 (Severe) Storm Levels Reached!

G4 Levels Reached!
G4 (Severe) Storm Levels Reached!
published: Wednesday, November 12, 2025 01:40 UTC

G4 (Severe) storm levels reached on 12 November at 0120 UTC (8:20pm EST)! Geomagnetic storm conditions are anticipated to continue into the night. Stay informed at spaceweather.gov for the latest. The included aurora images are of the aurora shining over northeastern Colorado.