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National Oceanic and Atmospheric Administration

Saturday, April 20, 2024 02:07:14

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
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S
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G
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Latest Observed
R
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S
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R1-R2 --
R3-R5 --
S1 or greater --
G
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R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
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no data
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R
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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

G3 (Strong) Geomagnetic Storming Observed 23 March, 2023

G3 Alert 23 March 2023
G3 (Strong) Geomagnetic Storming Observed 23 March, 2023
published: Tuesday, March 28, 2023 13:35 UTC

G3 (Strong) geomagnetic storming was observed at approximately 10:49 am EDT (1449 UTC) on 23 March. This was due primarily to stronger than anticipated CME influences. Additional isolated G3 periods are probable for the remainder of 23 March and into the early morning and overnight hours of 23-24 March (EDT). G1-G2 (Minor-Moderate) storm levels remain likely through 24 March as the aforementioned effects continue, but weaken, while CH HSS influences begin. Isolated G1 (Minor) geomagnetic storming periods are likely 25-26 March as negative polarity CH HSS effects continue.