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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, December 12, 2025 17:52:32

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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
Aurora viewing map G1 - Minor geomagnetic storm watch issued Monday, August 14, 2017 - 18:41
G2 Watch issued for 4 August; G1 Watch issued for 5 August G2 Watch issued for 4 August; G1 Watch issued for 5 August Wednesday, August 2, 2017 - 20:56
23 July Far-sided CME C3 Image 23 July Far-Sided CME Event Summary Wednesday, July 26, 2017 - 20:34
Halo CME on the Farside of the Sun Sunday, July 23, 2017 - 15:37
G1 (Minor) Geomagnetic Storm Levels Observed Saturday, July 22, 2017 - 12:51

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