The weather will start to change on Thursday, as a cut off low pressure system starts drawing moisture into Arizona. The slow-moving system will bring rain chances to the entire state, including the Valley, on Friday, Saturday and Sunday. These storms can cause interruptions in services, such as water, power, and gas," stated Captain Ashley Losch of the Glendale Fire Department. Running out of gas, especially in a remote location, is dangerous in extreme heat. Get help: If your vehicle breaks down in extreme heat, call for assistance right away to reduce wait time, and run the AC.