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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, July 11, 2024 22:10:36

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NOAA Scales

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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
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R
no data
S
no data
G
no data
Current Space Weather Conditions
on NOAA Scales
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.
G1 Watch for 13 July
Thursday, July 11, 2024 15:51 UTC

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

The Evolution and Impact of Active Region 13664
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 

GOES-U Satellite Successfully Launched!
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.

Request for Information on Space Weather Scales
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)