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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, August 04, 2015 16:03:10

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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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An image depicting the characters Q & A
SOHO/LASCO C3 Coronagraph Image of a bright dot moving across the field of view.
A picture of the aurora over top of a dome structure in the snow
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The NASA EPIC instrument on the NOAA/DSCOVR satellite snapped this picture of the day-lit side of the Earth, the ‘Blue Marble,’ on July 6, 2015.

Wednesday, January 14, 2015 00:42 UTC

If you have questions about the new website, we likely answer them here.

Tuesday, July 28, 2015 13:16 UTC

What are those bright spots that appear in the CME Image, people often ask. 

Thursday, October 09, 2014 22:31 UTC

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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