Active AlertsSantee, CA

What: High temperatures from the lower to mid 80s near the coast to the 90s for the western valleys and inland Orange County expected.
Where: Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, and San Diego County Valleys.
When: From 10 AM Thursday to 8 PM PDT Friday.
Impacts: Hot temperatures may cause heat illnesses.

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.