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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, May 21, 2024 10:49:42

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NOAA Scales mini

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Space Weather Conditions
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
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

G1-G2 (Minor-Moderate) Geomagnetic Storm Watches 23-24 April, 2023

G1-G2 (Minor-Moderate) Geomagnetic Storm Watches 23-24 April, 2023
published: Monday, April 24, 2023 01:42 UTC

A full-halo CME, associated with an M1 (R1-Minor) flare, was observed on 21 April. The CME is likely to cause G1 (Minor) to G2 (Moderate) geomagnetic storming beginning late on 23 April to 24 April (UTC).