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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, April 21, 2025 16:33:46

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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

G1 (Minor) Geomagnetic Storm Watch in effect for 03 July 2017

G1 (Minor) Geomagnetic Storm Watch in effect for 03 July 2017
published: Monday, July 03, 2017 14:02 UTC

A G1 (Minor) geomagnetic storm Watch is in effect for 03 July 2017 due to persistent CME-based enhancements in the solar wind.