...MAJOR WINTER STORM WILL IMPACT THE REGION THIS EVENING THROUGH SUNDAY EVENING... .A large area of precipitation will overrun Arctic air in place over the Mid-Atlantic. This will lead to widespread significant snow beginning this evening, with the potential for ice Sunday especially south of Highway 50 and near and east of Interstate 95. In addition to the high threat for significant snow and ice, very cold temperatures are expected tonight through the middle of next week with sub-zero wind chills likely at times. * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations between 12 and 18 inches and ice accumulations around two tenths of an inch, confined mostly west of the Allegheny Front and south of US-33. Winds gusting as high as 45 mph. * WHERE...Portions of western Maryland, western Virginia, and eastern West Virginia. * WHEN...From 7 PM this evening to 10 AM EST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow will likely overspread the area late Saturday afternoon, becoming heavy at times tonight with rates of one to two inches per hour possible at times. A mix with sleet or freezing rain is expected Sunday, especially west of the Allegheny Front. Precipitation is most likely to change back to snow and linger west of the Allegheny Front Sunday night into Monday morning. Visibility of one-quarter mile or less is possible at times. A prolonged period of sub-zero wind chills continues this evening and lasting through the middle of next week.

...MAJOR WINTER STORM WILL IMPACT THE REGION THIS EVENING THROUGH SUNDAY EVENING... .A large area of precipitation will overrun Arctic air in place over the Mid-Atlantic. This will lead to widespread significant snow beginning this evening, with the potential for ice Sunday especially south of Highway 50 and near and east of Interstate 95. In addition to the high threat for significant snow and ice, very cold temperatures are expected tonight through the middle of next week with sub-zero wind chills likely at times. * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations between 10 and 16 inches, with highest amounts north and west of US-340. Ice accumulations up to two tenths of an inch, mainly south and east of US-340. * WHERE...Portions of north central and western Maryland, northern and northwest Virginia, and eastern and panhandle West Virginia. * WHEN...From 11 PM this evening to 4 AM EST Monday. * IMPACTS...Travel could be very difficult to impossible. * ADDITIONAL DETAILS...Snow will likely overspread the area tonight, becoming heavy at times with rates of one to two inches per hour possible at times. A mix with sleet or freezing rain is expected Sunday. Visibility of one-quarter mile or less is possible at times. A prolonged period of very cold wind chills continues this evening and lasting through the middle of next week.