Caltrans is warning motorists traveling over Donner or Echo summits to be prepared for travel delays through Monday morning.

The National Weather Service says snow levels may be as low as 2,000 feet and that up to 3 feet of snow could fall in the higher elevations.

Windy conditions are also forecast, so low-visibility, whiteout conditions may occur. 

Motorists are required to carry chains even if driving a four- or all-wheel drive vehicle with mud and snow rated tires.

Motorists using cable (ladder) chains may be turned around on Highway 267 at the Northstar and Kings Beach chain control checkpoints. Although cable chains are legal traction devices, they’ve proven to be ineffective when attempting to drive over Brockway Summit during heavy snow storms.

Highway 50 traffic over Echo Summit may be held intermittently for avalanche control. Highway 89 over Emerald Bay is currently open, but may be closed due to avalanche hazards. Traffic on Interstate 80 may also be held intermittently to clear traffic incidents or if low-visibility conditions occur.