Storms are expected to develop across eastern and southeastern Arizona this evening, with outflow boundaries potentially pushing impacts into the Valley overnight. The Storm Prediction Center places Phoenix and southern Arizona, including the I-10 corridor to Tucson, under a slight risk for severe thunderstorms. Storm chances rise to about 50% Tuesday and Wednesday night, with rain lingering into Thursday morning. A flood watch covers southern Arizona today and expands into southeastern Arizona, including Cochise County, on Tuesday. Temperatures cool below normal through Thursday before storm chances drop and heat returns Friday.
