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National Oceanic and Atmospheric Administration

Thursday, July 03, 2025 21:32:48 UTC

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NOAA Scales

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Space Weather Conditions
24-Hour Observed Maximums
R
none
S
none
G
none
Latest Observed
R
none
S
none
G
none
Predicted 2025-07-03 UTC
R1-R2 20%
R3-R5 1%
S1 or greater 1%
G1
minor
Predicted 2025-07-04 UTC
R1-R2 20%
R3-R5 1%
S1 or greater 1%
G
none
Predicted 2025-07-05 UTC
R1-R2 20%
R3-R5 1%
S1 or greater 1%
G
none
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R
none
S
none
G
none
Current Space Weather Conditions
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

Space Weather Summary

  • Solar Wind Speed: 371 km/sec
  • Solar Wind Magnetic Fields: Bt 11 nT, Bz -8 nT
  • Noon 10.7cm Radio Flux: 125 sfu

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