* WHAT...Dangerously hot conditions. Afternoon temperatures 103 to 111. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
* WHERE...Aguila Valley, Apache Junction/Gold Canyon, Cave Creek/New River, and Fountain Hills/East Mesa.
* WHEN...Until 8 PM MST Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events.