The District of Columbia. In Maryland, Anne Arundel, Central and Southeast Howard, Central and Southeast Montgomery, Prince Georges, Southern Baltimore, and Charles Counties. In Virginia, King George and Fairfax Counties, and Arlington/Falls Church/Alexandria.
WHEN
Until 9 AM EDT this morning.
IMPACTS
Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Recommendations
Take steps now to protect tender plants from the cold.