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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 22, 2025 03:49:47

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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 Postedsort ascending
G1 Minor storm level explanation. Aurora forecast model G1 Minor Storm leves reached Sunday, February 9, 2025 - 21:01
New Preliminary Coronagraph Images from GOES-19 Thursday, February 6, 2025 - 20:26
R2 (Moderate) Radio Blackout 02 February Sunday, February 2, 2025 - 14:34
R2 (Moderate) Radio Blackout 31 January Friday, January 31, 2025 - 14:33
Temporary Webpage and Data Outages Possible on 4 February Temporary Webpage and Data Outages Possible on 20 February Wednesday, January 22, 2025 - 14:56

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