NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, June 19, 2024 03:27:01

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

Request for Communications Impacts from May 2024 G5 Storm
Thursday, June 13, 2024 17:44 UTC

SWPC is seeking information from interested parties regarding a possible revision to the Space Weather Scales (SWS).

Tuesday, June 04, 2024 21:13 UTC

Space weather scientists at NOAA and experts across the government celebrated a new collaborative effort to improve space weather forecasts and services to mitigate impacts of space weather.

Tuesday, May 28, 2024 20:26 UTC

The Federal Communications Commission’s Public Safety and Homeland Security Bureau (PSHSB or Bureau) seeks comment on any observed impacts to commu

Friday, May 24, 2024 18:35 UTC

Did you know that space weather can actually cause power outages? How is this possible?

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)