Time lapse video of the initiation and dissipation of a late morning thunderstorm that eventually went severe according to NWS. Filmed in the Sonoran Desert of Southcentral Arizona.
One larger single cell storm (the one NWS tagged as severe) and then several smaller cells training after the big one. It was more a line of storms like along a dry line as opposed to an organized cluster of cells which are fairly common during monsoon. Training of storms rarely happens during monsoon. Generally once and area has had activity the atmosphere is used up (turned over to use weather geek lingo) for the rest of that day at least.