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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, November 27, 2024 09:39:34

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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

28 December CME Arrived, G1 (Minor) Storming Now Expected

Image depicting arrival of the 28 December CME from the ACE satellite.
28 December CME Arrived, G1 (Minor) Storming Now Expected
published: Thursday, December 31, 2015 14:06 UTC

The G3 (Strong) geomagnetic storming watch, issued for 31 December, has been downgraded to G1 (Minor) levels. Solar wind parameters of the CME, measured by the ACE spacecraft, indicate the potential for G3 (Strong) geomagnetic storming is no longer likely. However, current observations of the solar wind suggest G1 (Minor) geomagnetic storms should still be expected.