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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, February 27, 2025 22:46:04

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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
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G
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Latest Observed
R
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S
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G
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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
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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

G2 (Moderate) Storm Levels Reached 15 March, 2023

G2 reached 15 Mar
G2 (Moderate) Storm Levels Reached 15 March, 2023
published: Friday, March 17, 2023 16:57 UTC

G2 (Moderate) Storm levels were briefly reached on 15 March, 2023, at 1:59 am EDT (0559 UTC). This disturbance was related to ongoing CH HSS (coronal high speed stream) activity and additional responses to CME shock arrival at Earth as a geomagnetic sudden impulse at 12:28 am EDT (0428 UTC). G1 (Minor) storm levels had already been reached by 11:55 pm EDT on 14 March due primarily to CH HSS related responses. The sudden impulse escalated geomagnetic responses and G2 storm levels were reached a few hours later. Additional CMEs are still anticipated to influence Earth later today and on 16 March, and the G1 Watches remain in effect. Continue to visit our website for the latest information, forecasts, and updates.