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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, January 25, 2025 02:28:45

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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

G3 (Strong) Geomagnetic Storm Alert Issued

G3 (Strong) Geomagnetic Storm Alert Issued
published: Monday, May 29, 2017 04:17 UTC

A G3 (Strong) geomagnetic storm alert was issued at 28/0419 UTC due to activity associated with the 23 May CME. Although the solar wind speed was relatively slow, the embedded magnetic field had a prolonged period of southward Bz that caused the elevated geomagnetic activity. Current geomagnetic conditions are slowly returning to background levels. There is an active warning for G1 (Minor) storming which is valid until 28/2100 UTC.