Active AlertsClifton, VA

What: Sub-freezing temperatures as low as 29 expected.
Where: In Maryland, Central and Southeast Howard, Central and Southeast Montgomery, and Southern Baltimore Counties. In Virginia, Fairfax County.
When: From midnight tonight to 9 AM EDT Wednesday.
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.