Also serving the communities of De Luz, Rainbow, Camp Pendleton, Pala and Pauma

Heatwave begins throughout San Diego County, brings elevated fire risk

SAN DIEGO (CNS) - Temperatures could soar into the triple digits in most of San Diego County Friday, Sept. 4 as a brutal stretch of heat begins, bringing an elevated risk of wildfires this weekend in the mountains and the western valleys, according to the National Weather Service.

High pressure will strengthen over the West Coast throughout Labor Day weekend, ushering in the sweltering conditions, forecasters said. The heat, low relative humidity and gust winds out of the east will also elevate fire weather conditions in the mountains and the western valleys on Saturday and Sunday.

Fallbrook can expect to see temperatures of 105 degrees Saturday and 104 on Sunday. Bonsall will be flipped, 104 Saturday and 105 Sunday. Rainbow will hit 107 Saturday and 106 Sunday.

Humidity will drop to the 15-20 percent range on Saturday and Sunday with poor overnight recovery, forecasters said. Winds out of the east are expected to reach speeds between 15-25 mph, with gusts potentially reaching 30-40 mph in the southern parts of the county.

An excessive heat warning will be in effect in the western valleys, the mountains and the deserts from 10 a.m. Friday through 8 p.m. Monday. Another excessive heat warning for coastal areas will run from 10 a.m. Saturday through 8 p.m. Monday.

A fire weather watch was also issued from late Saturday morning through Sunday afternoon in the mountains and the western valleys.

The fire weather watch comes with a warning that any fires that develop will likely spread rapidly and outdoor burning is not recommended.

High temperatures today are forecast to reach 81 degrees near the coast, 91 inland, 95 in the western valleys, 104 near the foothills, 102 in the mountains and 117 in the deserts.

The NWS urged residents to drink plenty of fluids, stay out of the sun and check on relatives and neighbors. Also, 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.

The mercury in the deserts is expected to reach 119 on Sunday and 122 on Monday, forecasters said. Highs in the western valleys could soar to 116 on Saturday and 114 on Sunday, while high temperatures near the foothills will remain in the triple digits through Monday.

To help the public beat the heat, the county is offering nine cooling centers in Alpine, Borrego Springs, Fallbrook, Lakeside, Potrero, Ramona, Santa Ysabel, Spring Valley and Valley Center. Due to the coronavirus, mandatory mask-wearing and social-distancing protocols are enforced in the facilities.

A full list of the cooling center locations can be found at:

All locations will be open from noon to 5 p.m. throughout Labor Day weekend.


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