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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, December 15, 2017 02:41:47

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NOAA Scales mini

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Space Weather Conditions
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
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 Issued for 04 Dec 2017

G1 (Minor) Geomagnetic Storm Watch Issued for 04 Dec 2017
published: Saturday, December 02, 2017 16:27 UTC

G1 (Minor) geomagnetic storm conditions are likely on 04 Dec 2017 due to the anticipated influence of a recurrent, positive polarity CH HSS.