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National Oceanic and Atmospheric Administration

Saturday, April 19, 2025 21:22:47

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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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G
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Latest Observed
R
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R1-R2 --
R3-R5 --
S1 or greater --
G
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R1-R2 --
R3-R5 --
S1 or greater --
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no data
R1-R2 --
R3-R5 --
S1 or greater --
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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

R3 (Strong) Solar Flare Occurred 28 March, 2025

R3 Flare on 28 March
R3 (Strong) Solar Flare Occurred 28 March, 2025
published: Sunday, March 30, 2025 21:35 UTC

A strong solar flare (R3) occurred and peaked at X1.1 near 11:20am EDT (1520 UTC) on 28 March, 2025. The flare occurred from the vicinity of newly rotated into view Region 4046 near the east limb (left side of the solar disk). The flare was associated with a blast of solar material from the area as seen in this GOES-16 image - so a likely non-Earth directed coronal mass ejection (CME) erupted as well. As always, continue to monitor our SWPC webpage for the latest information and updates.