It covers Frederick and Washington Counties.
From The National Weather Service:
...WINTER STORM WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING... * WHAT...Heavy mixed precipitation possible. Total snow accumulations in excess of five inches, and ice accumulations in excess of one-quarter of an inch are possible. * WHERE...Washington and Frederick MD Counties. * WHEN...From Saturday morning through Saturday evening. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. By The National Weather Service, Sterling, Va.