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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, April 28, 2024 16:24:59

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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
G1 Watch Expanded Tuesday, December 6, 2016 - 23:10
G1 Watch 4-5 Nov G1 Watch 4 - 5 Nov due to CH HSS Effects Thursday, November 3, 2022 - 18:40
G1-G2 Watches 31 Aug-1 Sep, 2019 G1 Watch 31 Aug & G2 Watch 1 Sep, 2019 UTC-Days Thursday, August 29, 2019 - 20:43
G1 Warning until 24/0300 UTC G1 Warning in effect through 24/0300 UTC (23/2300 ET) Tuesday, August 23, 2016 - 19:16
G1 Storm Watch for 01 March 2019 Tuesday, February 26, 2019 - 21:53

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