NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, December 10, 2024 17:33:24

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

R2
NOAA Shares Imagery from GOES-19 CCOR-1
Joint Solar Maximum Announcement from NASA and NOAA
Tuesday, December 10, 2024 11:35 UTC

An M6.4 flare was observed at 10/0648 UTC from newly numbered Region 3922 near the east limb. 

Saturday, December 07, 2024 07:39 UTC

The 2025 Space Weather Workshop will be held in person along with a virtual component, March 17-21, 2025.

Tuesday, October 22, 2024 17:11 UTC

NOAA Shares Imagery From World’s First Operational Space-based Coronagraph

Wednesday, October 16, 2024 20:55 UTC

The Sun is officially in solar maximum of Solar Cycle 25.

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)