Winter Weather Advisory Issued for Mountains Above San Gorgonio Pass

The cold storm system moving across Southern California and the San Gorgonio Pass prompted a winter weather advisory Friday morning.

Snow and gusty winds are possible through 9 p.m. Friday at elevations above 4,500 feet in mountains on both sides of the Pass, according to the National Weather Service.

could come down as low as 4,000 feet, the Weather Service advised.

The warning area included the mountains of San Bernardino and Riverside counties.

"Hikers and campers in the San Gorgonio and San Jacinto wilderness areas should be prepared for subfreezing temperatures," the Weather Service advised.

Snow accumulations of 4 to 6 inches were possible above 4,500 feet elevation.

Winds of 20 miles per hour to 30 mph were expected, with gusts to 50 mph possible, according to the Weather Service.

Blowing snow and fog could reduce visibilities in the mountains. In addition, ice on roads at higher elevations could increase driving hazards.