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.

* WHAT...Heat index values up to 110 expected. * WHERE...Coastal Indian River, Coastal Martin, Coastal Saint Lucie, Inland Indian River, Inland Martin, Inland Saint Lucie, Inland Southern Brevard, Mainland Southern Brevard, Okeechobee, and Southern Brevard Barrier Islands. * WHEN...From 10 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.