Space Weather Prediction Center

National Oceanic and Atmospheric Administration

https://services.swpc.noaa.gov
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
  • Solar Wind Speed: km/sec
  • Solar Wind Magnetic Fields: Bt nT, Bz nT
  • Noon 10.7cm Radio Flux: sfu
R3 (Strong) Radio Blackout Observed
Saturday, July 04, 2026 21:53 UTC
An R3 (Strong) Radio Blackout was observed when newly numbered Sunspot Region 4482 produced and X1.3 flare at 20:41 UTC on 04 Jul 2026....
Moderate to Strong Storm Observed - Minor to Moderate conditions expected to linger
Saturday, July 04, 2026 16:02 UTC
A moderate to (briefly) strong geomagnetic stormwas observed with the arrival of the CME from 30 Jun.  Disturbed conditions reaching minor to moderate levels are expected to persist into 05 July....
Solar Wind Data and Display Changes
Tuesday, June 30, 2026 21:35 UTC
Solar wind data and display changes on our webpage due to DSCOVR data termination and SOLAR-1 being the primary instrument. Users need to utilize the new solar wind display....
Learn About Various Solar Storms and Phenomena
Wednesday, June 17, 2026 19:55 UTC
Learn more about various solar storms and phenomena by visiting the "About Space Weather" on our webpage....

The Sun (EUV)

Solar Ultraviolet Image 195 Å (Angstrom)
Solar Ultraviolet Image 94 Å (Angstrom)
Solar Ultraviolet Image 131 Å (Angstrom)
Solar Ultraviolet Image 171 Å (Angstrom)
Solar Ultraviolet Image 284 Å (Angstrom)
Solar Ultraviolet Image 304 Å (Angstrom)
Solar Ultraviolet Image Thematic Map

The Aurora

Aurora ovation plot
South Auroral Forecast Image

Coronal Mass Ejections

CCOR-1 Coronagraph Image
LASCO C2 Coronagraph Image
LASCO C3 Coronagraph Image

GOES X-Ray Flux

GOES Proton Flux

Planetary K Index

Updated Time:
NOAA Scales Geomagnetic Storms
Kp < 5 Kp = 5 (G1) Kp = 6 (G2) Kp = 7 (G3) Kp = 8, 9- (G4) Kp = 9o (G5)