Skip Navigation Links 
NOAA logo-Select to go to the NOAA homepage NOAA's National Weather Service   Select to go to the NWS homepage
Storm Prediction Center
navigation bar left  
  navigation bar end cap is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

SPC Mesoscale Analysis Pages
Click on sector "TAB" below to go to that sector. Clicking on map links to National Sector only.


With the exception of the national sector, the three sub-sectors will change as SPC forecasters monitor these areas for hazardous weather. This information is provided by SPC as a way of sharing the latest severe weather forecast techniques with local forecasters.

The SPC runs a 2-pass Barnes surface objective analysis around :05 after each hour, using the latest RUC forecast as a first guess. Next, the surface data is merged with the latest RUC forecast upper-air data to represent a 3-dimensional current objective analysis. Finally, each gridpoint is post-processed with a sounding analysis rountine called NSHARP to calculate many technical fields related to severe storm forecasting.

Contacts for this resource include: Phillip Bothwell, Greg Carbin, John Hart, and Rich Thompson.

Weather Topics:
Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us

NOAA/ National Weather Service
National Centers for Environmental Prediction
Storm Prediction Center
1313 Halley Circle
Norman, OK 73069 U.S.A.
Page last modified:
Disclaimer Privacy Policy