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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, November 24, 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
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S
no data
G
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Latest Observed
R
no data
S
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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
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G
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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

R2 (Moderate) Flare from Region 3089

A picture of the ionosphere reflecting radio waves
R2 (Moderate) Flare from Region 3089
published: Tuesday, August 30, 2022 14:16 UTC

Region 3089 produced a long-duration R2 (Moderate) solar flare.  This impacted Earth's ionosphere, the layer in our upper atmosphere that can reflect high frequency radio waves.  Amateur radio operators having on-air conversations (QSOs) would notice immediately as their signals faded on the affected frequencies.  Fortunately, those impacts are typically short lived and the ionosphere recovers.