NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, January 25, 2023 21:22:45

Main menu

NOAA Scales

minimize icon
Space Weather Conditions
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
maximize icon
R
no data
S
no data
G
no data
Current Space Weather Conditions
R1 (Minor) Radio Blackout Impacts
close
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

Slider

SWAG Meeting at DOC
Planetary K-Index Plot Changes
Wednesday, January 18, 2023 19:50 UTC

The Space Weather Advisory Group (SWAG) is meeting at the Department of Commerce.

Wednesday, January 04, 2023 23:26 UTC

On January 4, 2023, NOAA's National Environmental Satellite Data Service (NESDIS) transitioned the GOES-18 satellite into operations as

Monday, November 07, 2022 21:24 UTC

On or about November 14, 2022, at 1700 Universal Coordinated Time (UTC), the National Weather Service will deploy an update to the Planetary K inde

Wednesday, October 05, 2022 14:10 UTC

The initial August 30, 2022 deployment of the dynamic Planetary K-Index plots resulted in display issues for iPhone and Safari web browser Mac user

Serving Essential Space Weather Communities

The Sun (EUV)

Solar Ultraviolet Image

Coronal Mass Ejections

LASCO C3 Coronagraph Image

The Aurora

Aurora ovation plot

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)