What: High temperatures 97 to 101 degrees expected.
Where: San Diego County Valleys.
When: From 10 AM Wednesday to 8 PM PDT Thursday.
Impacts: Hot temperatures may cause heat illnesses.
Additional Details: Widespread moderate HeatRisk expected. Hottest conditions expected east of Interstate 15.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.