SAN JOSE — A cold weather system from the Gulf of Alaska made its way through the Bay Area overnight, dusting mountaintops with snow and delivering another soaking of rain.

Snow was visible early Wednesday morning on Mount Hamilton and Mt. Diablo but it wasn’t expected to last long, according to Diana Henderson, a forecaster with the weather service.

The storm delivered between a quarter-inch and a half-inch of rain to the Bay Area, according to the weather service. San Jose registered .36 inches, San Francisco .24 inches and Oakland .21 inches.

Conditions through Saturday are expected to be cold and dry as the Bay Area experiences some of the coldest temperatures of the season, with many inland areas forecast to see lows in the 30s.

The storm also dumped more snow in the Sierra Nevada and created messy travel conditions for motorists on Highway 50 and Interstate 80. As of 7:30 a.m. there was still snow on the roadway with delays expected.

Tuesday’s snowfall in the Sierra averaged between 6 to 12 inches, according to Alex Hoon, a meteorologist with the weather service in Reno.

Lake Tahoe registered between 4 to 8 inches, and higher elevations received as much as 18 inches, Hoon said.

“This is actually really good,” Hoon said. “Last year the snowfall was so bad, we weren’t seeing these types of snowfall amounts down at the Lake Tahoe level.”

The Sierra Nevada may receive more snow showers Wednesday night and into Thanksgiving Day, Hoon said, but “nothing heavy.”

Looking ahead, there is a chance for more snow next week, Hoon said.

Contact Mark Gomez at 408-920-5869 and follow him at Twitter.com/MarkMgomez.