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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, November 21, 2024 20:50:41

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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

Minor (S1) Solar Radiation Storm In Progress - 21 Nov 2024

Minor (S1) Solar Radiation Storm In Progress - 21 Nov 2024
published: Thursday, November 21, 2024 20:44 UTC

The greater than 10 MeV proton flux became enhanced following an eruption from a source beyond the west limb. The greater than 10 MeV proton flux reached S1 (Minor) storm levels at 21/1925 UTC, and is expected to persist into the early hours of the 22 Nov 2024 UTC day.