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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, July 18, 2025 22:52:47

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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 Posted
G3 Watch for 16 Apr 2025 Monday, April 14, 2025 - 17:51
New Coronagraph Page Available New Coronagraph Page Available Tuesday, April 8, 2025 - 16:07
R2 Moderate radio blackout/GOES SUVI imagery R2 (Moderate) HF Radio Blackout Event on 01 Apr, 2025 Tuesday, April 1, 2025 - 07:09
S1 Storm on 31 March S1 (Minor) Storm on 31 March Monday, March 31, 2025 - 21:17
New Solar Cycle Plots Available! New Solar Cycle Plots Available! Monday, March 31, 2025 - 17:55

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