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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Saturday, September 22, 2018 03:07:06

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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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Auroral Prediction
SWPC News Announcement
NWS Fall 2018 Safety Campaign
SWPC Legacy Website Removal
Saturday, September 22, 2018 00:48 UTC

A G1 (Minor) geomagnetic storm warning is valid from 21/2355-22/0900 UTC.

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!

Monday, August 20, 2018 15:38 UTC

Late in 2014, SWPC migrated all of its web presence to a modernized system.

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