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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, April 17, 2024 08:00:32

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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
Yet another R2 flare from NOAA Region 12371 Thursday, June 25, 2015 - 13:46
R3 text X8.2 (R3-Strong) X-Ray Event Observed at 10/1606 UTC. Sunday, September 10, 2017 - 17:59
X5.0 Flare Closes Out the 2023 Year Sunday, December 31, 2023 - 22:20
X2.5 Flare from Region 3576 Friday, February 16, 2024 - 07:48
X2.2/2b Flare (R3 - Strong Radio Blackout) on 17 February 2023 Wednesday, March 30, 2022 - 18:31

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