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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, December 12, 2025 00:46:36

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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.

DAP - temp Head Section

News Archive

Originally Posted
Strong (G3) Geomagnetic Storms are Likely on 16 September 2024 Saturday, September 14, 2024 - 21:18
R3 Strong radio blackout/GOES SUVI imagery/Explanations R3 (Strong) HF Radio Blackout Event on 14 Sep 2024 Saturday, September 14, 2024 - 16:27
G3 - Strong Geomagnetic Storm Levels Observed G3 - Strong Geomagnetic Storm Levels Observed Thursday, September 12, 2024 - 14:59
R3 (Strong) HF Radio Blackout Observed Thursday, September 12, 2024 - 10:27
G2 (Moderate) geomagnetic storm levels are likely on 13 Sep (UTC day) G2 (Moderate) Geomagnetic Storm Watch for 13 Sep Wednesday, September 11, 2024 - 13:49

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