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National Oceanic and Atmospheric Administration

Wednesday, November 29, 2023 08:31:11

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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
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G
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Latest Observed
R
no data
S
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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
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
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R
no data
S
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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 (Mod) HF Radio Blackout and S2 (Mod) Solar Radiation Storm on 17 July 2023

R2/S2 MODERATE solar and radiation storms
R2 (Mod) HF Radio Blackout and S2 (Mod) Solar Radiation Storm on 17 July 2023
published: Saturday, July 22, 2023 21:31 UTC

Region 3363 produced an M5.7 X-ray flare (R2-Moderate radio blackout) at approximately 1806 MDT on 17 July 2023. Shortly thereafter, an S2 (MODERATE) Solar Radiation Storm was observed at the GOES16 satellite. A coronal mass ejection (CME) was observed erupting from the flare location (near Region 3363) and is currently being analyzed to determine if it has an Earth-directed component. Stay tuned to our webpage for the latest forecasts, watches, warnings, and alerts.