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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, April 20, 2026 22:36:32

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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

sort descending Originally Posted
The NESDIS launch website for SWFO-L1 is now live! Monday, June 30, 2025 - 17:47
The NWS Fall Safety Campaign Has Begun Tuesday, September 1, 2015 - 20:55
NWS 2019 Fall Safety Campaign The NWS Fall Safety Campaign Is On Thursday, August 29, 2019 - 18:30
The NWS Winter Safety Campaign Has Begun The NWS Winter Safety Campaign Has Begun Thursday, December 3, 2015 - 19:11
The return of old Region 2192. Sunday, November 16, 2014 - 11:04

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