Active AlertsAshburn, VA

What: Sub-freezing temperatures as low as 30.
Where: Portions of central, north central, northeast, and northern Maryland, central, northern, northwest, and western Virginia, and the eastern panhandle of West Virginia.
When: Until 9 AM EDT this morning.
Impacts: Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.