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NOAA Scales

https://services.swpc.noaa.gov

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Space Weather Conditions

24-Hour Observed Maximums

R1-R2 --
R3-R5 --
S1 or greater --
R1-R2 --
R3-R5 --
S1 or greater --
R1-R2 --
R3-R5 --
S1 or greater --

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Current Space Weather Conditions

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: sfu

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Serving Essential Space Weather Communities

The Sun (EUV)

Solar Ultraviolet Image 195 Å (Angstrom)

Solar Ultraviolet Image 94 Å (Angstrom)

Solar Ultraviolet Image 131 Å (Angstrom)

Solar Ultraviolet Image 171 Å (Angstrom)

Solar Ultraviolet Image 284 Å (Angstrom)

Solar Ultraviolet Image 304 Å (Angstrom)

Solar Ultraviolet Image Thematic Map

The Aurora

Aurora ovation plot

South Auroral Forecast Image

Coronal Mass Ejections

CCOR-1 Coronagraph Image

LASCO C2 Coronagraph Image

LASCO C3 Coronagraph Image

GOES X-Ray Flux

GOES Proton Flux

Updated Time:

NOAA Scales Geomagnetic Storms
Kp < 5 Kp = 5 (G1) Kp = 6 (G2) Kp = 7 (G3) Kp = 8, 9- (G4) Kp = 9o (G5)

DAP - temp Head Section