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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, August 31, 2025 22:07:04

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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

What to Know about the Labor Day-Night G2-G3 Storm Watches

G2-G3 Watches for 1-2 Sep; What to Know
What to Know about the Labor Day-Night G2-G3 Storm Watches
published: Sunday, August 31, 2025 19:52 UTC

SWPC notifies critical infrastructure operators about these storms. Those interested in seeing aurora should visit our webpage at spaceweather.gov to follow latest updates; and follow the local weather forecasts for cloud forecast conditions.