The National Weather Service in Phoenix has issued an Excessive Heat Warning for the Valley area, from 10:00 am Thursday through 8:00pm Saturday.
Never leave kids or pets unattended in cars. Drink more water than usual and when outdoors wear light colored clothing and a wide brimmed hat. Take frequent rest breaks in shaded or air conditioned areas.
The symptoms of heat related illness include headache, thirst, muscle cramps and fainting.