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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, January 16, 2018 21:42:33

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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 issued for 6, 7, and 8 December **UPDATE**

SDO/AIA satellite imagery indentifying coronal holes
G1 (Minor) Watch issued for 6, 7, and 8 December **UPDATE**
published: Tuesday, December 08, 2015 13:17 UTC

A G1 (Minor) Watch is in effect for 6, 7, and 8 December as enhanced solar wind velocities from a combination of three different coronal hole high speed streams are likely to disturb Earth's magnetic field and cause minor geomagnetic storming over the next three days. Stay tuned to our SWPC website for additional updates.