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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, April 24, 2018 21:23:32

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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 ascending Originally Posted
G2 Conditions Return Wednesday, September 9, 2015 - 05:23
Aurora visibility information chart G2 (Moderate) watch issued for 17, 18, and 19 May Saturday, May 13, 2017 - 20:05
G2 (Moderate) Watch Issued for 03 January Saturday, January 2, 2016 - 19:03
G2 (Moderate) Watch Issued for 02 August Saturday, July 30, 2016 - 21:14
G2 Warning Auroral Forecast G2 (Moderate) Warning Issued: Valid to 31/1800 UTC Thursday, August 31, 2017 - 06:18

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