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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, April 10, 2025 09:39:08 UTC

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NOAA Scales

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Space Weather Conditions
on NOAA Scales
24-Hour Observed Maximums
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Latest Observed
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S
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Predicted 2025-04-10 UTC
R1-R2 45%
R3-R5 5%
S1 or greater 5%
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Predicted 2025-04-11 UTC
R1-R2 45%
R3-R5 5%
S1 or greater 5%
G
none
Predicted 2025-04-12 UTC
R1-R2 45%
R3-R5 5%
S1 or greater 5%
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

Space Weather Summary

  • Solar Wind Speed: -- km/sec
  • Solar Wind Magnetic Fields: Bt -- nT, Bz -- nT
  • Noon 10.7cm Radio Flux: 167 sfu

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Geoelectric Field Models - US CANADA 1D
GEOELECTRIC US-Canada 1D animation
Geoelectric Field Models - EMPIRICAL EMTF 3D MODEL
GEOELECTRIC EMPIRICAL EMTF - 3D MODEL animation
Created with Highcharts 8.0.4Universal TimeKp indexChart context menuEstimated Planetary K index (3 hour data)Apr 8Apr 9Apr 1003:0006:0009:0012:0015:0018:0021:0003:0006:0009:0012:0015:0018:0021:0003:0006:0009:0012:0015:0018:0021:00Apr 1101234567890123456789Space Weather Prediction CenterBegin: Tue, 08 Apr 2025 00:00:00 GMT
Updated Time: 2025-04-10T06:00:00.000Z
NOAA Scales Geomagnetic Storms
Kp < 5 Kp = 5 (G1) Kp = 6 (G2) Kp = 7 (G3) Kp = 8, 9- (G4) Kp = 9o (G5)

WSA-Enlil Solar Wind Prediction

ENLIL Image