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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, May 21, 2022 17:20:00

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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

Originally Posted
R1/R2 radio blackouts (M5 flare), D-Rap map, and 094 ang. image from SUVI R1/R2 Radio Blackouts on 19 May 2022 Thursday, May 19, 2022 - 16:21
R3 Flare on 10 May, 2022 R3 (Strong) Flare at 9:55 am EDT on 10 May, 2022 Tuesday, May 10, 2022 - 15:56
M5 flares 3-4 May, 2022 M-class flares 3-4 May, 2022 Wednesday, May 4, 2022 - 14:03
R3 Event on 3 May, 2022 X1 Flare (R3-Strong Radio Blackout) on 3 May, 2022 Tuesday, May 3, 2022 - 14:22
X1 Flare Observed at 1347 UTC on 30 April, 2022 Saturday, April 30, 2022 - 17:14

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