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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, April 20, 2025 03:13:09

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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.

News Archive

Originally Posted
Low Solar Activity 25-27 Oct The Sun Remains Active Despite Low Solar Activity Levels Tuesday, October 24, 2023 - 19:30
Job Vacancy at the Space Weather Prediction Center Monday, October 23, 2023 - 21:23
Lull in Sunspot Activity 20 Oct, 2023 Low Solar Activity Likely 20-22 Oct Friday, October 20, 2023 - 18:41
Annular Eclipse 2023 Annular Eclipse 2023 from SWPC Point of View Saturday, October 14, 2023 - 20:07
SWPC Forecast Office Job Posting - SWPC Forecasters Thursday, September 28, 2023 - 14:16

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