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National Oceanic and Atmospheric Administration

Friday, March 31, 2023 02:01:31

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NOAA Scales

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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
no data
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: sfu

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2023 Space Weather Workshop - April 17-21, 2023 Banner
Planetary K-Index Plot Changes
2023 Space Weather Workshop - April 17-21, 2023
Thursday, February 09, 2023 16:42 UTC

Registration for the 2023 Space Weather Workshop is now open!

GOES-18 Now Secondary Data Source Replacing GOES-17
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

Planetary K Index (Kp) Products will be updated on or about November 14, 2022
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

Dynamic Planetary K-Index Plots Deployed: Display Issues Resolved
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)