NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, March 18, 2018 00:57:48

Main menu

NOAA Scales

minimize icon
Space Weather Conditions
on NOAA Scales
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
maximize icon
R
no data
S
no data
G
no data
Current Space Weather Conditions
on NOAA Scales
R1 (Minor) Radio Blackout Impacts
close
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

Slider

NWS Spring Safety Website
Geospace delta B North America example product
It Is Time To Think About Spring Weather Hazards & Safety!
Thursday, March 01, 2018 16:32 UTC

Learn about spring weather hazards and safety by visiting the NWS Spring Safety website.

2018 Space Weather Workshop Registration is Open!
Saturday, February 10, 2018 16:38 UTC

Registration is now open for the 2018 Space Weather Workshop from 16-20 April at the Westin Hotel in Westminster, Colorado.

Announcing Geospace Model Version 1.5
Wednesday, November 08, 2017 21:34 UTC

The Geospace products: Geospace Geomagnetic Activity Plot,

Announcing The New Experimental, 1D, Interpolated Geoelectric Field Model
Thursday, November 02, 2017 19:02 UTC

SWPC is pleased to announce that the experimental, one-dimensional, interpolated Geoelectric Field model became publicly available on November 02,

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