Heat Advisory

Status

Event Continued Active alert

Start Time

Fri 08/22/2025 03:57 PM EDT

End Time

Sat 08/23/2025 11:00 PM EDT

Significance

Advisory

Impacts

Low impact

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service San Diego CA 1257 PM PDT Fri Aug 22 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT SATURDAY... * WHAT...Temperatures up to 105 expected. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Today is expected to be the hottest day. 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

Technical Header

CAZ048-230515- /O.CON.KSGX.HT.Y.0005.000000T0000Z-250824T0300Z/ San Bernardino and Riverside County Valleys-The Inland Empire- Including the cities of San Bernardino, Fontana, Moreno Valley, Ontario, Riverside, Corona, and Rancho Cucamonga 1257 PM PDT Fri Aug 22 2025