Snow started to fall in the Sierra and is expected to continue throughout the weekend, meteorologists with the National Weather Service said.
Scott McGuire, meteorologist with the National Weather Service, said as much as 16 inches is expected to fall in elevations above 7000 feet. Around 8 inches is expected for elevations around 6500 feet and up to 2 inches is expected at lake level.
"Precipitation is finally starting to push in," McGuire said. "The system was up in northeastern California this morning and the high elevation snow is pushing into the Tahoe Basin now."
A winter weather advisory is in effect until 4 p.m. Sunday for elevations above 7000 feet for the Greater Lake Tahoe area. McGuire said there will be periods of rain and snow with brief periods of heavier snow Saturday night into Sunday morning.
McGuire said everyone needs to remain extra cautious on roadways. According to the California Highway Patrol, chains are required for trucks traveling from Placer County to the Donner Lake interchange on Interstate 80.
"Thanksgiving week has a huge volume of traffic," McGuire said. "Even light snowfall can cause travel delays. People should watch the forecast, give themselves extra time and leave extra space between vehicles."
While some areas are preparing for weather conditions, there won't be any snow in Reno just yet. However, Reno is getting a taste of the winter system with gusts up to 60 mph expected on Saturday. A wind advisory is in effect until 4 p.m. Saturday for Reno, Carson City, Minden, Sparks, Gardnerville and Virginia City.
"We won't see snow in Reno," McGuire said. "Any precipitation we get here will be rain, and it won't be that much."
Caltrans & CHP out today to keep I-80 safe. Heavy snowfall & chain controls are expected all day&night. Expect delays due to heavy traffic. pic.twitter.com/SHJDaXHjYg— Caltrans District 3 (@CaltransDist3) November 20, 2016