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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 22, 2025 00:49:57

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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 Posted
G1 (Minor) Geomagnetic Storm Watch Issued for December 25th G1 (Minor) Geomagnetic Storm Watch Issued for December 25th Monday, December 23, 2024 - 22:55
R2 Event on 23 December R2 Event on 23 December Monday, December 23, 2024 - 14:46
G1 (Minor) Storm Levels Reached 17 December 2024 G1 (Minor) Storm Levels Reached 17 December 2024 Tuesday, December 17, 2024 - 15:50
R2 (Moderate) Radio Blackout Observed R2 (Moderate) Radio Blackout Observed Wednesday, December 11, 2024 - 16:43
Occasional R1-R2 Events Remain Likely through 14 December Occasional R1-R2 Events Remain Likely through 14 December Wednesday, December 11, 2024 - 15:51

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