RIVERSIDE (CNS) – Triple-digit temperatures are expected again Thursday in the Riverside metropolitan area as a stretch of scorching heat looms on the horizon for Riverside County.
A ridge of high pressure will continue building over the southwestern United States through Monday, ushering in the scorching heat, according to the National Weather Service.
Moisture from Elida — which has weakened to a tropical depression and is currently centered roughly 700 miles south of San Diego — will create a chance of thunderstorms Sunday and Monday afternoon in the Riverside county mountains, forecasters said.
The NWS issued an excessive heat warning that will be in effect from noon Friday to 9 p.m. Monday in the Riverside metropolitan area, the Riverside County mountains, the San Gorgonio Pass near Banning and the Coachella Valley.
The NWS urged residents to drink plenty of fluids, stay out of the sun and check up on relatives and neighbors. Also, young children, seniors and pets should be never be left unattended in a vehicle, with car interiors able to “reach lethal temperatures in a matter of minutes,” according to the NWS.
Highs in the Coachella Valley are forecast to reach 116 on Friday, then climb to 118 on Saturday, according to the NWS. The mercury in the Riverside metropolitan area is expected to top out at 107 on Saturday.
High temperatures today are forecast to reach 113 in the Coachella Valley, 104 in the San Gorgonio Pass near Banning, 103 in Hemet, 103 in Riverside, 102 in Lake Elsinore, 98 in Temecula and 89 in Idyllwild.
The Apple Fire, which has burned 33,424-acres in the San Bernardino National Forest including a portion of the San Gorgonio Pass near Banning, was 60% contained as of Wednesday night.
Winds out of the west today are expected to reach speeds between 15-25 mph in that area, with 30 mph gusts possible throughout the day, forecasters said.
U.S. Forest Service officials said the gusty winds and increasing temperatures through the weekend could pose a challenge to containment efforts, but fire lines passed the test of winds earlier in the week.