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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, March 30, 2026 18:44:58

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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 Watch for March 31st UTC-Day

G2 Watch for March 31st UTC-Day
G2 Watch for March 31st UTC-Day
published: Monday, March 30, 2026 15:05 UTC

A fairly fast coronal mass ejection (CME) erupted from the Sun late on March 29th (Eastern Time). The CME was associated with an X1.4 solar flare (R3-Strong) from Region 4405 in the southeast quadrant of the Sun. The CME is still being evaluated, but early results are somewhat consistent in at least a partial impact here at Earth. A G2 (Moderate) Watch is in effect for the March 31st UTC-day in anticipation of any CME influences. However, the CME is still being analyzed and the forecast could change as some model results suggest a slightly more Earth-directed arrival. Stay informed from the Nation’s official source of space weather forecasts and information.

 

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