* WHAT...Dangerously hot conditions possible. Afternoon temperatures 105 to 115. Major Heat Risk.
* WHERE...Portions of South-central Arizona.
* WHEN...From Thursday morning through Monday evening.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
* ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more.