STEVENS PASS — Those who are driving over mountain passes Monday after the holiday may want to leave in the morning.
The National Weather Service in Seattle has issued a winter weather watch beginning Monday afternoon through Tuesday night.
The Cascades in Snohomish County could see two to three feet of snow. The Olympics could get one to two feet.
The snow level is expected to remain around 2,000 feet.
The National Weather Service said highways could close at times for avalanche control.
Between one to three inches of snow is forecast for Stevens Pass during the day Monday, and nine to 13 inches at night.
On Tuesday, an additional 13 inches of snow could fall on the pass.
Temperatures are expected to remain in the 20s through Wednesday.
Meteorologists do not anticipate snow in the lowlands.