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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, December 11, 2024 16:48:34

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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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R2 (Moderate) Radio Blackout Observed
Occasional R1-R2 Events Remain Likely through 14 December
NOAA Shares Imagery from GOES-19 CCOR-1
R2 (Moderate) Radio Blackout Observed
Wednesday, December 11, 2024 16:43 UTC

An M6.7 flare was observed at 11/1549 UTC from old Region 3912 just around the east limb. Stay tuned for updates!

Occasional R1-R2 Events Remain Likely through 14 December
Wednesday, December 11, 2024 15:51 UTC

A few sunspot groups of note that have produced some R1-R2 activity since December 9th remain sources for additional activity.

Registration open for 2025 Space Weather Workshop!
Saturday, December 07, 2024 07:39 UTC

The 2025 Space Weather Workshop will be held in person along with a virtual component, March 17-21, 2025.

NOAA Shares Imagery from GOES-19 CCOR-1
Tuesday, October 22, 2024 17:11 UTC

NOAA Shares Imagery From World’s First Operational Space-based Coronagraph

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)