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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, January 20, 2022 03:38:09

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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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Wang Sheeley Arge (WSA) model output example
What is a CME?
Image of GOES-R series satellite with instruments labeled.
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.

Thursday, December 09, 2021 17:01 UTC

Just like we experience weather on Earth, there’s weather in space!

Friday, September 17, 2021 17:00 UTC

GOES-17 operational data were implemented in SWPC operations on August 24. 

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