Active AlertsWest Hills, Los Angeles, CA

What: Dangerously hot conditions with temperatures up to 100 possible. Hottest Wednesday and Thursday.
Where: San Fernando Valley, San Gabriel Mountains, San Gabriel Valley, Santa Clarita Valley.
When: From Tuesday morning through Thursday evening.
Impacts: There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.