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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, March 22, 2026 21:17:30

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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

G2 (Moderate) Geomagnetic Storm Watch for 22 Mar

G2 (Moderate) Geomagnetic Storm Watch for 22 Mar
published: Sunday, March 22, 2026 21:01 UTC

A G2 (Moderate) geomagnetic storm watch is in place for March as CME influences from the past 24 hours begin to wane, but are followed by the onset of a recurrent coronal hole high speed stream. G1 (Minor) storming periods are then likely to continue into 23 March.

DAP - temp Head Section