Active AlertsPittsburgh, Allegheny County Airport, PA

What: Temperatures as low as 33 will result in frost formation.
Where: Portions of east central Ohio, southwest and western Pennsylvania, and northern and the northern panhandle of West Virginia.
When: From midnight tonight to 8 AM EDT Saturday.
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.