Active AlertsEllicott City, MD

What: Temperatures as low as 33 will result in frost formation.
Where: DC, and portions of central, northern, and southern Maryland, and central and northern Virginia.
When: From midnight tonight to 9 AM EDT Thursday.
Impacts: Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.