...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 6 PM EDT THIS EVENING...

* WHAT...Heat index values up to 110 expected.

* WHERE...Florida Keys.

* WHEN...From 10 AM this morning to 6 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids and 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.

To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.