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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

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Parts of the U.S. Government are closed. However, because the information this site provides is necessary to protect life and property, it will be updated and maintained during the Federal Government shutdown. For critical weather information, please visit www.weather.gov. To learn more, see www.commerce.gov.

Wednesday, January 16, 2019 20:06:46

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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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Parts of the U.S. Government are closed
SWPC News Announcement
NWS Fall 2018 Safety Campaign
Wednesday, December 26, 2018 18:02 UTC

Parts of the U.S. Government are closed.

Monday, December 03, 2018 21:04 UTC
Beginning December 3, 2018, SWPC will be adding a variety of space weather data in the JSON format via our data service. Much of this data is cur
Monday, September 10, 2018 14:34 UTC

Beginning September 17, 2018, at approximately 1200 UTC (0800 ET), the SWPC website will no longer support HTTP format for its data service.

Tuesday, September 04, 2018 04:17 UTC

Autumn is rapidly approaching!

Serving Essential Space Weather Communities

The Sun's X-Rays

Solar X-Ray Imager Image

Coronal Mass Ejections

LASCO C3 Coronagraph Image

The Aurora

Aurora ovation plot

GOES X-Ray Flux

GOES X-Ray flux plot

GOES Proton Flux

GOES Proton Flux plot

Estimated Planetary K-Index

Planetary K Index plot