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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, February 01, 2026 20:52:33

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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
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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) Radio Blackout Observed on 01 Feb

R2 (Moderate) Radio Blackout Observed on 01 Feb
published: Sunday, February 01, 2026 10:56 UTC

Region 4366 produced an M6.6 flare at 01/1002 UTC. Region 4366 continues to develop and evolve at a steady pace as it has done so over the past 24 hours. Additional M-class flares (R1-R2 Radio Blakcouts) seem to be likely at this time.

DAP - temp Head Section