Our initial target area near San Angelo, Texas quickly soured as storms fired early in the day just after noon. This was because the environment was not capped enough, meaning warm air aloft was not present to limit storm development and isolate it so only the strongest updrafts would survive. Since all the storms fired at once, and especially in an area where winds were becoming northerly aloft, they merged into a large mesoscale convective system (MCS) that moved toward San Antonio and Austin. Before the MCS formed, the individual storms did have some rotation and supercellular characteristics. Check out this panorama of a severe storm with rotation just south of San Angelo I took earlier today below.
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