Extreme Heat Warning
Status
New Event Active alertStart Time
Thu 07/30/2026 01:00 PM EDTEnd Time
Sun 08/02/2026 11:00 PM EDTSignificance
WarningImpacts
High impact
Full Alert Message
URGENT - WEATHER MESSAGE National Weather Service San Diego CA 156 AM PDT Tue Jul 28 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THURSDAY TO 8 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with temperatures up to 110 expected. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...From 10 AM Thursday to 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. 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.
Technical Header
CAZ048-282245- /O.NEW.KSGX.XH.W.0007.260730T1700Z-260803T0300Z/ San Bernardino and Riverside County Valleys-The Inland Empire- Including the cities of Moreno Valley, San Bernardino, Riverside, Fontana, Ontario, Corona, and Rancho Cucamonga 156 AM PDT Tue Jul 28 2026
