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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, July 11, 2025 20:15:57

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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
S3 (Strong) Solar Radiation Storm in Progress S3 (Strong) Solar Radiation Storm in Progress Wednesday, October 9, 2024 - 13:58
G4 Geomagnetic Storm Watch with coronagraph image G4 (Severe) Storm Watch for 10-11 October Wednesday, October 9, 2024 - 13:35
R3 event R3 (Strong) HF Radio Blackout Event Wednesday, October 9, 2024 - 02:28
Comet Tsuchinshan-ATLAS Comes into View of Coronagraph Imagery Comet Tsuchinshan-ATLAS Comes into View of Coronagraph Imagery Tuesday, October 8, 2024 - 14:18
G3 G3 Conditions Observed Tuesday, October 8, 2024 - 04:34

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