New Meso Analysis Page has been implemented on March 27, 2012. Changes include: 1) overlay/underlay select buttons moved from the bottom to the side based on user feedback. 2) current SPC products are displayed in a hovered window at the lower-right of the page to facilitate better situational awareness as new products are issued. 3) A Trends/Forecast section has been added. This allows the user to view trends in the parameter being examined, and even project the data into the future for selected parameters. The images are viewed when you mouseover the selected past/forecast hour. Past images are of the SfcOA system, while future images are based on RUC model output. Another use for this function is to compare the SfcOA Analysis of a selected parameter to the RUC forecast for the same parameter at 00H. This may provide useful information regarding the performance of the model. (Updated: Mar 27 2012)

New SREF Page has been implemented on March 27, 2012. Go to www.spc.noaa.gov/exper/sref/index_old.html to access the legacy version. (Updated: Mar 27 2012)

The 2011 SPC Severe Weather Database files are now available for download at http://www.spc.noaa.gov/wcm/#data. (Updated: Mar 26 2012)

Two new RSS feeds have been added:

The 2012 National Severe Weather Workshop was held March 1-3, 2012 in Norman, OK. Visit www.norman.noaa.gov/nsww/ for more details.

The Storm Reports page has been updated to display both the new un-filtered reports side by side with the filtered version. For more info about the differences click here. Additionally, the links to display storm reports in Google Maps have been added.

On July 6, 2011 SPC created the official Facebook page. Please click on the Facebook icon on the left side menu or click on this link.

Severe Weather GIS (SVRGIS) page has been updated with tornadoes (1950-2010), hail/wind (1955-2010) reports converted into shapefile (.shp) format. Visit http://www.spc.noaa.gov/gis/svrgis/ for details.

The SPC will provide multimedia weather briefings on an experimental basis for most Moderate and all High Risk severe weather days during the Day 1 period. As a supplement to the Public Severe Weather Outlook (PWO), these once-per-day recorded briefings will be available during the early morning hours (approximately 6:00-10:30AM Central Time) on the SPC website.

The Mesoscale Analysis page has been substantially redesigned. Several additions and improvements have been added, such as image overlays, larger images, and fixed sector areas that permanently cover the entire contiguous United States. For more information, visit the Mesoscale Analysis Page, or download a MPEG4 video clip here. (5.8MB)

The Storm Prediction Center is one of the initial participants in the NWS experimental email updates service. The SPC products available with email updates are: Tornado/Severe Thunderstorm Watches and Watch Status updates, Mesoscale Discussions, Day 1, 2, 3 and 4-8 Convective Outlooks, Day 1, 2 and 3-8 Fire Weather Outlooks. More info.