Heat Advisory

Locations Affected

Pomona, CA ∙ Glendale, CA ∙ Santa Clarita, CA ∙ Pasadena, CA ∙ Thousand Oaks, CA ∙ El Monte, CA ∙ West Covina, CA ∙ Simi Valley, CA ∙ Whittier, CA ∙ Alhambra, CA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 243 AM PDT Sat May 10 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Daytime temperatures in the 90s up to around 103 degrees expected with overnight low temperatures offering little relief from the heat. * WHERE...The Los Angeles and Ventura County Valleys, Santa Monica and Santa Ynez Mountains, and the southern Salinas Valley. * WHEN...Until 9 PM PDT this evening. * IMPACTS...There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. 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.

---