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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Friday, December 15, 2017 08:09:19

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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

G2 (Moderate) Geomagnetic Storm Watch Issued - Valid for 16-17 Jul 2017

G2 (Moderate) Geomagnetic Storm Watch Issued - Valid for 16-17 Jul 2017
published: Tuesday, July 18, 2017 06:04 UTC

A watch has been issued for likely G2 (Moderate) geomagnetic storm conditions on 16 Jul and early on 17 Jul due to the anticipated arrival of a CME from 14 Jul.