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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, January 16, 2018 21:55:24

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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) Watch for 17 May 2015

WSA-Enlil output showing CME arrival on 17 May.
G1 (Minor) Watch for 17 May 2015
published: Monday, May 18, 2015 16:04 UTC

A G1 (minor) geomagnetic storm Watch has been issued for 17 May, due to the anticipated arrival of a CME associated with a filament eruption observed leaving the Sun on 13 May.