Active AlertsTrappe, PA

What: Sub-freezing temperatures as low as 28.
Where: Berks, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Western Chester, and Western Montgomery Counties.
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.