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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, April 24, 2024 03:06:33

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NOAA Scales mini

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
R
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S
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G
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Latest Observed
R
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S
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G
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R1-R2 --
R3-R5 --
S1 or greater --
G
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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
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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

X1 Flare (R3-Strong Radio Blackout) on 3 May, 2022

R3 Event on 3 May, 2022
X1 Flare (R3-Strong Radio Blackout) on 3 May, 2022
published: Friday, May 06, 2022 17:24 UTC

An X1.1 flare (R3-Strong Radio Blackout) occurred on 3 May, 2022, at 9:25 am EDT (3/1325 UTC). The flare erupted from just beyond the southeast limb of the visible solar disk. During the peak of the flare, HF (high frequency) communication may have been prone to contact loss over the Atlantic Ocean, and portions of eastern South America, western Africa and Europe. The source region for the flare has yet to be identified as it still lies just beyond the limb, however, it is only a day or two from rotating into view. Stay informed with the latest information and forecasts by continuing to visit our SWPC webpage.