...HEAT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT TUESDAY... * WHAT...Heat index values up to 103 degrees expected. * WHERE...In Delaware, New Castle County. In New Jersey, Camden, Gloucester, Northwestern Burlington, Ocean, and Southeastern Burlington Counties. In Pennsylvania, Delaware and Philadelphia Counties. * WHEN...From 10 AM to 8 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. &&