SAN BERNARDINO (KTLA) -- Snow fell in the mountain areas and high desert of Southern California on Wednesday night as a cold winter storm moved across the region.

A winter storm warning expired at 3 a.m. Thursday for the Riverside County Mountains and San Bernardino County Mountains.

Some snow flurries were expected to continue through Thursday morning in Big Bear.

Schools in the Rim of the World School District and the Bear Valley Unified School District were closed on Thursday due to inclement weather.

A low-pressure system brought cold temperatures, gusty winds, rain and snow to many areas on Wednesday.

Steady rain fell across the Southland Wednesday morning and afternoon.

Snowfall was reported in the Cajon Pass, the Grapevine and in the Antelope Valley.

Two to four inches of snow were expected at elevations above 3,500 feet, according to the National Weather Service.

The rain and snow had mostly moved on by Thursday morning, but windy conditions remained.

A high wind warning is in effect through 2 p.m. Thursday for the Los Angeles County Mountains (excluding the Santa Monica Range), the Santa Monica Mountains Recreational Area and the Ventura County Mountains.

Winds of 25 to 40 mph, with damaging gusts to 60 mph, are possible, according to the NWS. Some isolated gusts could reach 70 mph.

The strongest winds will be focused through passes and canyons Thursday morning.

The winds could knock down trees and power lines, and make driving very difficult, especially for high-profile vehicles, the NWS warned.

A high wind warning extends through 1 p.m. Friday for the Orange County Coastal Areas, the San Bernardino County Mountains, the San Bernardino and Riverside County Valleys (The Inland Empire) and the Santa Ana Mountains and Foothills.

The NWS says strong northeast winds of 20 to 30 mph will continue through Friday afternoon before tapering off. Gusts to 60 mph are possible.

The strongest winds are expected in the passes and canyons of the San Bernardino and Santa Ana mountains, extending into the Inland Empire and inland portions of the Orange County coastal areas.