Storm brings snow to San Mateo County

The conditions prompted a warning by the San Mateo County Sheriff’s Office that also mentioned the potential for black ice on upper Skyline Boulevard between state routes 92 and 84.

That area saw about 6.5 inches of rain since Friday while San Francisco International Airport logged about 1.2 inches of rain, bringing season totals to 90 percent of normal.

A sinkhole forced the California Highway Patrol to close Skyline Boulevard south of Alpine Road to the Santa Clara County line. The sinkhole was most of the width of a lane and about 20 feet, CHP spokesman Art Montiel said. Old La Honda Road about a mile west of Skyline is also still closed, Montiel said.

Page Mill Road in Palo Alto reopened Tuesday afternoon after it was closed between Foothills Park Gate No. 1 and Skyline Boulevard due to snow and ice covering the road, according to Palo Alto Police. And

Highway 17 was closed briefly Monday night as Caltrans crews plowed snow off the roads.

In Santa Clara County, several emergency shelters were kept open for extended stretches due to the inclement weather expected through later parts of the week. Daytime warming centers are open at libraries and community and senior centers around the county. Overnight shelters are available as well, and inclement weather shelters will offer meals, showers and support services. Temperatures are expected to dip below 40 degrees during the cold snap, which also includes expected periods of rain and flooding.

Winter storms have been hitting the West for several days and brought a surprise dusting to peaks overlooking San Francisco — the city’s first notable snow in eight years. Some neighborhoods in San Francisco were hit with brief periods of hail.

More than 3 feet of snow has fallen at the top of some Lake Tahoe ski resorts in the last 24 hours, bringing the total to 6 feet since storms began Saturday.

“It’s beautiful and we certainly need the snow, but we’re asking people to stay indoors,” park spokesman Scott Gediman said. “As the weather improves, we’ll plow roads and assess the situation.”

California is still recovering from a drought that led to tight water restrictions and contributed to severe wildfires.

The Associated Press and Bay City News contributed to this article.