NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, May 12, 2024 17:03:34

Main menu

NOAA Scales

minimize icon
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
maximize icon
R
no data
S
no data
G
no data
Current Space Weather Conditions
on NOAA Scales
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

Yet Another X-class Flare!
Sunday, May 12, 2024 17:00 UTC

NOAA Sunspot Region 3664 just produced another X-class flare.

Severe to Extreme Geomagnetic Storming is Possible Again Later Today
Sunday, May 12, 2024 13:40 UTC

Severe to extreme geomagnetic storming is possible again later today.

G4 or Greater WATCH Remains in Effect
Sunday, May 12, 2024 13:39 UTC

A G4 or Greater WATCH Remains in Effect for May 12.

Secondary Peak in Solar Storm Likely
Sunday, May 12, 2024 13:39 UTC

Forecasters are still expecting a secondary peak in the current solar storm.

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)