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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, March 22, 2025 12:48:02

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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

Update: G2 Geomagnetic Storm Alert Conditions Met Again

Update: G2 Geomagnetic Storm Alert Conditions Met Again
published: Tuesday, July 18, 2017 18:15 UTC

UPDATE: G2 (Moderate) geomagnetic storm conditions were observed again at 1642 UTC (12:42 pm ET) today (17 July) due to continued activity from a coronal mass ejection that arrived on 16 July.  The G2 Warning has been extended and is now valid until 2100 UTC on 17 July. Stay tuned for updates!