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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, April 25, 2018 19:55:27

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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

News Archive

Previous SWPC news items.

News Archive

sort descending Originally Posted
Activity from Region 2158... Tuesday, September 9, 2014 - 04:56
Additional CME Activity Tuesday, December 23, 2014 - 14:39
Solar image with sunspots annotated Almost Out of View - Still a Threat Wednesday, October 29, 2014 - 16:05
Geospace delta B North America example product Announcing Geospace Model Version 1.5 Wednesday, November 8, 2017 - 21:34
Announcing The New Experimental, 1D, Interpolated Geoelectric Field Model Thursday, November 2, 2017 - 19:02

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