Heat Advisory
Status
Event Continued Active alertStart Time
Fri 03/20/2026 02:21 PM EDTEnd Time
Fri 03/20/2026 11:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Full Alert Message
URGENT - WEATHER MESSAGE National Weather Service San Diego CA 1121 AM PDT Fri Mar 20 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WHAT...High temperatures 90 to 97. * WHERE...Orange County Inland Areas and San Diego County Valleys. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses. 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.
Technical Header
CAZ050-554-210300- /O.CON.KSGX.HT.Y.0002.000000T0000Z-260321T0300Z/ San Diego County Valleys-Orange County Inland Areas- Including the cities of Santee, Poway, Orange, Santa Ana, Garden Grove, San Marcos, El Cajon, Escondido, La Mesa, Fullerton, Irvine, Mission Viejo, and Anaheim 1121 AM PDT Fri Mar 20 2026