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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 22, 2025 07:27:52

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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
SWPC Dissemination Service Modernization Friday, April 6, 2018 - 17:53
SWPC Dissemination Service Modernization Friday, April 6, 2018 - 15:34
SWPC Web Page Downtime Required Wednesday, March 28, 2018 - 13:58
G2 Watch - Auroral Prediction G2 (Moderate) Geomagnetic Storm Watch Issued for 11 Sep Thursday, March 22, 2018 - 17:58
G1 Watch with potential impacts map G1-Minor Storm Watch issued for 22 March 2018 Tuesday, March 20, 2018 - 06:14

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