Looks like our monsoon will finally get started out here this weekend, particularly Sunday. Now is when the weather gets interesting in the desert, but it's harder to figure out if you're going to get slammed or not, as the monsoons most often pulse and form along outflow boundaries.
Although when we get a good valley-wide meso, it's an awesome show of some of the most intense lightning, wind, and rainfall you'll ever see. One of the best I saw was when I lived in Avondale, along I-10 in the west valley. One dropped down from the north, and one came up from the southwest, and merged right over the area, and created one of the best natural "fireworks shows" I'd ever seen.