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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
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
on NOAA Scales
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

2018 Space Weather Workshop - 16-20 April, 2018

2018 Space Weather Workshop Banner
2018 Space Weather Workshop - 16-20 April, 2018
published: Monday, August 21, 2017 13:16 UTC

The date and location for the 2018 Space Weather Workshop have now been determined by UCAR.  In 2018 we will be gathering from 16-20 April at the Westin Hotel in Westminster, Colorado.  More details will be forthcoming on this Workshop once the UCAR planning committee is formed. Please visit our Annual Meeting page for more information.