In Portland, the other major city in the Pacific Northwest, 1 to 4 inches of snow is expected.
Higher elevation areas such as the Teton Valley, the Snake River Highlands, or near Island Park might see between 6 and 12 inches of snow.
Travel early today to beat our next winter storm that will move into the Sierra this evening and last through Sunday evening with a winter storm warning up. Seattle averages 6.8 inches of snow over the course of an entire year.
The winds expected to accompany the storm could cause issues with blowing snow, as well as downed power lines and trees.
The snow is likely to slow or stop Saturday morning, but two more snowstorms are expected to hit early next week.
In California, more than 120 visitors and staff members were rescued after being snowbound in a Sierra Nevada resort for five days. The NWS advises drivers to take caution if they have to be out on the roads.
There's a possibility of more snow for Seattle on Sunday into Monday.
The snow is expected to fall at a rate of about two inches per hour at the worst parts of the storm.
"If you can, work from home", Mass said.
A 2017 snowstorm made travel hard in Portland.
Starting Saturday, snow is expected to fall in Portland - and it might keep falling, off and on, for a week.
An unusually powerful winter storm dropped over six inches on the Pacific Northwest city February 9 - a "new daily record" according to the National Weather Service, which also happens to report that more snow is on the way. "If a power line falls on you while you are in a auto, stay in the vehicle and call 911".
Earlier this week, another storm shut down the city and left some neighborhoods with about half a foot of snow.
Autumn Sang was at a mobbed grocery store in Tualatin, Oregon, on Friday stocking up for the coming storm for herself and her neighbor, who is disabled and doesn't have a vehicle.