New: 2009 National Severe Weather Workshop is scheduled for March 5-7, 2009 in Norman, OK. Visit http://www.norman.noaa.gov/nsww2009/ for details.

MD LAT/LON points format changed effective 10/21/2008. The change standardizes the format for LAT/LON data within SPC products.

Click here then click on the FNUS38 KWNS PFWF38 link close to the bottom of the page to see the LAT/LON points product for Day 3-8 Fire Weather Outlook. (effective May 20, 2008)

Click here then click on the WWUS48 PTSD48 link to see the LAT/LON points product for Day 4-8 Convective Outlook. (effective March 25, 2008)

Click here to see the SPC Preliminary Severe Weather Database Summary.

Day 3-8 Fire Weather Outlook became an official product June 12, 2007.

Day 4-8 Convective Outlook became an official product March 22, 2007.

Enhanced Fujita Scale Page is available here.

The SPC has updated the Short-Range Ensemble (SREF) guidance page.

Go to http://www.wdtb.noaa.gov/courses/EF-scale/index.html for more information regarding EF-Scale training by the WDTB.

Mesoscale Analysis now has 6 sectors..

Experimental Enhanced Resolution Thunderstorm Outlooks are now available.

PNS announcement for new Fire Weather Outlook Areal Outline Products in effect on May 2, 2006.

PNS announcement for new Convective Watch Hazard Probabilities Product in effect on April 25, 2006.

SPC Product & Report Archives page has been reorganized.

Monitor the number of tornadoes during the year compared to normal and other years at www.spc.noaa.gov/climo/torn/monthlytornstats.html.