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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, August 07, 2022 19:48:11

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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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example geoelectric field map.
Wang Sheeley Arge (WSA) model output example
What is a CME?
Friday, August 05, 2022 19:00 UTC

Summary of Changes

Tuesday, March 08, 2022 15:24 UTC

The Space Weather Prediction Center is pleased to announce the operational release of updated geoelectric field maps on March 23 at 1700UT

Thursday, January 20, 2022 03:35 UTC

Effective February 18, 2022, the NWS will discontinue the Legacy Wang Sheeley Arge Website

Thursday, December 09, 2021 17:13 UTC

Coronal Mass Ejections (CMEs) are large expulsions of plasma and magnetic field from the Sun’s corona.

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

Estimated Planetary K-Index

Planetary K Index plot