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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, April 20, 2025 17:20:10

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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

News Archive

Previous SWPC news items.

News Archive

Originally Posted
DSCOVR graphic Scheduled DSCOVR Data Outage on 7 October Sunday, October 2, 2016 - 05:15
Day Three of G1-G2 (Minor-Moderate) Geomagnetic Storms Thursday, September 29, 2016 - 19:29
Day Two of G2 (Moderate) Geomagnetic Storm Conditions Wednesday, September 28, 2016 - 21:20
G2 (Moderate) Geomagnetic Storm Levels Observed Tuesday, September 27, 2016 - 17:37
G1 (Minor) Geomagnetic Storm Watch for 01 October Tuesday, September 27, 2016 - 04:35

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