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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, December 15, 2017 02:39:59

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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 Watch Expanded

G1 Watch Expanded
published: Friday, December 09, 2016 22:30 UTC

Further analysis suggests G1 minor storm conditions are now likely 07-09 December as a negative polarity CH HSS influences the near-Earth environment. The G1 Watch has been expanded to include all 3 of these days.