NWS Forecast Office Phoenix, AZ

Afternoon thunderstorms over the typically favored Northern and Eastern AZ high terrain as well as portions of Pima County are likely to send at least one outflow boundary towards the South-Central AZ lower elevations, which would reach the Greater Phoenix Area by late afternoon or evening. This outflow could carry dense blowing dust with it, especially if it comes from the south or southeast. A collision of outflow boundaries or one particularly strong outflow boundary may be sufficient to spark additional thunderstorms. Strong, gusty winds, locally heavy rainfall, and frequent lightning will be the primary concerns.