A wintry mix of freezing rain and sleet will be possible early Monday morning, north of I-70.
"Rush hour during the morning Tuesday as well as later that night will be very hard and slow due to another heavy snowfall", Yuhas said.
The region, more used to rain than extreme wintry conditions, has been hit by a series of wintry storm systems.
Almost 8 inches of snow fell at Seattle-Tacoma Airport, where hundreds of flights were canceled, CBS News' Carter Evans reports.
The District may get a little trace amount of snow accumulating but it'll all get washed away as we switch over to rain Monday morning.
With temperatures already in the teens or single digits, meteorologists predict low temperature records could be broken on Sunday. According to him, parts of the region could be measuring snow in feet by then. While this is occurring there also needs to be high pressure in Canada allowing cold arctic air (modified arctic air by the time it reaches us) to funnel through openings in the topography, such as the Fraser River Valley.
"Disruptions to logistical operations are expected due to heavy snowfall causing hazardous travel conditions", Clark said.
Washington's Governor, Jay Inslee, declared an emergency across the state on Friday.
The National Weather Service is calling for 5 to 8 inches of snow in the areas covered by the Winter Storm Watch.
Meanwhile, enough rain may fall to aggravate the flooding situation from Arkansas, Tennessee and Kentucky, to the southern portions of Missouri, Illinois, Indiana and Ohio.
Any threat for freezing rain Monday night into Tuesday morning will be confined to far northwestern Virginia.