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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, May 21, 2025 02:08:06

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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

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Member of the Media? Get in touch!

We are eager to assist with your inquiries and provide accurate and timely information about space weather and our operations. Please reach out to us at swpc.media@noaa.gov , and our team will respond to routine requests within 1-2 business days.

During periods of heightened space weather activity, our Significant Activity Response Team will prioritize media requests and respond as soon as practicable.