One product issued by NWS for:
Heat Advisory
URGENT - WEATHER MESSAGE National Weather Service San Diego CA 932 PM PDT Thu Mar 12 2026 CAZ043-048-050-552-554-131415- /O.CON.KSGX.HT.Y.0001.000000T0000Z-260314T0300Z/ San Diego County Coastal Areas-San Bernardino and Riverside County Valleys-The Inland Empire-San Diego County Valleys-Orange County Coastal Areas-Orange County Inland Areas- Including the cities of Mission Viejo, Poway, Chula Vista, National City, San Diego, Rancho Cucamonga, Escondido, Oceanside, La Mesa, Anaheim, Santa Ana, San Bernardino, Encinitas, Fontana, El Cajon, Ontario, Vista, Santee, Garden Grove, Fullerton, San Marcos, Orange, Corona, Riverside, Irvine, Carlsbad, Moreno Valley, Costa Mesa, and Huntington Beach 932 PM PDT Thu Mar 12 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY... * WHAT...High temperatures from the lower to mid 80s near the coast and lower to mid 90s for the 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...Until 8 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Very warm temperatures are expected to continue into the weekend and beyond. Elevated overnight lows will limit overnight relief from the heat. 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. && $$ PS