Winter has arrived in Denver, bringing with it up to 12 inches of snow across the metro area and frigid temperatures.

A winter storm warning is in effect from 6 a.m. Saturday morning until noon Sunday, and forecasters at the National Weather Service said everyone in northern Colorado can expect at least a little snow through the weekend.

Forecasters said the snow will still be in bands through Saturday night, with some areas in the heaviest bands getting between one and two inches of snow per hour through midnight Saturday.

Banded snowfall will affect how much snow specific areas will receive, with places like Elbert and Lincoln counties receiving less snow than areas around Denver and the plains around Morgan and Washington counties.

Snow accumulation will range from three to six inches over the plains, while the Denver metro can expect anywhere from six to 12 inches of snow.

The mountains will see up to 20 inches of snow along the higher mountain passes.

Winter driving conditions over the mountains and plains by tonight will cause issues for drivers with icy and snowpacked roads.

Most major highways through the mountains and Front Range will see several inches of snow, with Interstate 70 set to receive over six inches virtually everywhere between Golden and Vail Pass.

Eisenhower Tunnel is forecast to get between 14 and 22 inches.

The snow will drift south and east by Sunday, with only modest accumulations expected in the metro area Sunday morning.

Temperatures will also be a concern through the weekend.

Sunday’s high is just 28 degrees in Denver, and Sunday night will likely see temperatures in the single digits, with the expected low to be just eight degrees.

Monday night’s low is expected to be 16 degrees.