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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, April 21, 2025 02:05:34

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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

2020 Space Weather Workshop - 20-24 April, 2020 in Boulder, CO

2020 Space Weather Workshop - 20-24 April, 2020 in Boulder, CO
published: Tuesday, June 11, 2019 03:55 UTC

The dates for the 2020 Space Weather Workshop have been confirmed and will be held at the Embassy Suites/Hilton Garden Inn in Boulder, CO. Please visit our Annual Meeting page for more information.