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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, November 23, 2024 01:12:42

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
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S
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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
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
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no data
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R
no data
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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

Severe (G4) Geomagnetic Storms Observed - 12 Aug 2024

Severe (G4) Geomagnetic Storms Observed - 12 Aug 2024
published: Tuesday, August 13, 2024 14:00 UTC

G4 (Severe) geomagnetic storming was observed at approximately 1442 UTC on 12 Aug in response to a coronal mass ejection passing by Earth. The current G3 Warning (Strong or greater) is valid until 12/1800 UTC.