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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, September 04, 2025 08:03:47

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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

G2 (Moderate) Geomagnetic Storm levels reached

G2 Moderate storm Key messages and current aurora forecast image
G2 (Moderate) Geomagnetic Storm levels reached
published: Thursday, September 04, 2025 07:51 UTC

Geomagnetic storm levels reached G2 (Moderate) at 01/2236 UTC. Stay tuned to our website for updates.