Vehicles driving through pouring rain on Interstate 5 north in University City last Sunday. Photo by Chris Jennewein
Vehicles driving through rain on Interstate 5 north in University City. Photo by Chris Jennewein

Rain will be possible throughout drought-parched San Diego Region Thursday and strong gusty winds are expected to develop later in the mountains and deserts.

A chance of showers and isolated thunderstorms that may produce small hail are forecast for the mountains and deserts through Thursday afternoon, but only a chance of rain is forecast for the coast and valleys.

The National Weather Service said rain probabilities range from 25 percent along the coast to 50 percent inland. Snow is possible in the San Bernardino and Riverside County mountains.

Gusty west winds of  25 to 35 miles per hour with gusts of up to 65 mph are expected to develop in the mountains and deserts Thursday night.

A high-wind advisory for mountains and deserts is scheduled to remain in effect from 8 p.m. until 2 a.m. Saturday. The advisory did not extend to the rest of San Diego County.

“A fast-moving upper level disturbance will bring strong and gusty west winds to the mountains and deserts beginning this evening and continuing through Friday night,” according to the weather service.

Forecasters said wind speeds would peak Friday afternoon and would begin to weaken Friday night.

The gusty wind could cause hazardous driving conditions, especially along Interstates 8 and 15, the weather service said. Visibility along some roadways could be reduced by blowing sand and dust.

City News Service contributed to this article.

Chris Jennewein is founder and senior editor of Times of San Diego.