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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, July 11, 2024 15:54:10

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NOAA Scales

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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
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R
no data
S
no data
G
no data
Current Space Weather Conditions
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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A G1 Watch has been issued for July 13-14.
Nighttime view of the northern lights in Alaska.
Thursday, July 11, 2024 15:51 UTC

A G1 Watch has been issued for July 13-14. 

Monday, July 08, 2024 14:22 UTC

Active Region 13664 was responsible for the largest geomagnetic storm of Solar Cycle 25, read the story from an operational perspective 

Wednesday, June 26, 2024 13:41 UTC

GOES-U, which will be renamed GOES-19 once in orbit, successfully launched from Florida on June 25.

Thursday, June 13, 2024 17:44 UTC

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

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)