KEC-83 Weather radio from the National Weather Service in Baltimore/Washington DC(Sterling, Va) which serves the following land areas and marine zones: Anne Arundel, MD Prince Georges, MD Baltimore, MD Queen Annes, MD Baltimore City, MD District of Columbia Calvert, MD Adams, PA Carroll, MD York, PA Frederick, MD Chesapeake Bay Zones Harford, MD North of Pooles Island Howard, MD Pooles Island to Sandy Pt Kent, MD Sandy Pt. to North Beach Montgomery, MD North Beach to Drum Pt