Well just out having a look at some "Popcorn" convection today in SW MO these storms are knows as air mass thunderstorms which are more of a summer event. For the most part air mass storms are weak but when they die they tend to downburst and can cause isolated severe wind events. The Storm Patrol will be LIVE from the event trying to get rare video of a downburst. Tyler. Here is a SBCAPE plot from SPC Meso Analysis as of 5:30 CDT 5-25 the image does not update!