Clarke Severe Watches & Warnings NOAA Weather Radio

... Winter Storm Warning remains in effect until 1 am EST
Thursday... 

* what... heavy mixed precipitation, with the biggest remaining
  threat being freezing rain. Additional snow and sleet
  accumulations of less than one inch, and ice accumulations of
  one tenth to one quarter of an inch. Freezing rain is expected
  to transition to rain by 1 am.

* Where... portions of north central and western Maryland, northern
  and northwest Virginia and eastern West Virginia.

* When... until 1 am EST Thursday.

* Additional details... travel will be very difficult. The 
  hazardous conditions will impact the evening commute. The 
  combined weight of snow, sleet and freezing rain could result 
  in downed branches and isolated power outages.

Precautionary/preparedness actions... 

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible. 

When venturing outside, watch your first few steps taken on
steps, sidewalks, and driveways, which could be icy and slippery,
increasing your risk of a fall and injury.