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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, December 18, 2025 05:29:41

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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

Originally Posted
R1 Event 20 Feb, 2023 M4 Flare (R1-Minor) Event on 20 February, 2023 Monday, February 20, 2023 - 16:29
Geomagnetic Storm Watches 16-18 Feb, 2023 G1-G2 Geomagnetic Storm Watches issued for 16-17-18 Feb 2023 Wednesday, February 15, 2023 - 20:41
G1 Minor storm level explanation. Aurora ovation forecast model image. G1 Minor Storm levels reached Wednesday, February 15, 2023 - 19:12
13-15 Feb 2023 Flare Forecast M-class Flares (R1-R2; Minor-Moderate) Events Remain Likely 13-15 Feb Monday, February 13, 2023 - 22:25
R3 Event 11 Feb, 2023 The return of the X-flares Saturday, February 11, 2023 - 17:09

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