Skip Navigation Links www.weather.gov 
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
Space Weather Prediction Center


NOAA is celebrating 200 years of science, service, and stewardship. Visit the NOAA 200th celebration Web site to learn more.

FirstGov.gov is the U.S. Government's official Web portal to all Federal, state, and local government Web resources and services.

Find us on Facebook

Top News of the Day:

2014-04-20 12:37 UTC  G2 (Moderate) Geomagnetic Storming Expected (Updated)

The first of the two expected coronal mass ejections (CMEs) has arrived, with the arrival of the second still expected in the near term.  These events, stemming from solar activity on the 17th and 18th, are expected to drive G2 (Moderate) geomagnetic storming on the 20th with G1 (Minor) storming continuing through the 21st.  Additionally, the S1 (Minor) radiation storm that occurred as a result of the eruption on the 18th is currently below the event threshold but may see an enhancement back over threshold with the arrival of these CMEs.  The regions that drove this activity are slowly rotating out of view, so continued activity is becoming less and less likely.  Updates here as this geomagnetic storm unfolds.


NOAA's Space Weather Prediction Center is pleased to debut the beta version of its new website.
New Space Weather Education and Outreach Resources - NOW AVAILABLE! Follow this link.
Sign up for Emails of Space Weather Alerts, Warnings, Watches, and Forecasts.

Current Space Weather Conditions


NOAA Scales Activity

Range 1 (minor) to 5 (extreme)
NOAA Scale
Geomagnetic Storms *
Solar Radiation Storms
Previous 24 hour S-scale value
Current S-scale value
Radio Blackouts
Previous 24 hour R-scale value
     



Space Weather Topics:
Alerts / Warnings, Space Weather Now, Today's Space Wx, Data and Products, About Us ,
Email Products, Space Wx Workshop, Education/Outreach, Customer Services, Contact Us

NOAA/ National Weather Service
National Centers for Environmental Prediction
Space Weather Prediction Center, W/NP9
325 Broadway, Boulder CO 80305
SWPC.Webmaster@noaa.gov
Page last modified: November 5, 2007
Disclaimer

Credits

Glossary
Privacy Policy

About Us

Career Opportunities