WATCH ALERT: Freeze Watch issued April 16 at 3:55AM CDT until April 17 at 8:00AM CDT by NWS

…Breezy conditions are forecast across the higher elevations today along with below freezing temperatures. A widespread killing freezing is possible tonight into Tuesday morning… …FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING… * EVENT…Temperatures will drop into the low 30s tonight.

from Current Watches, Warnings and Advisories for Knox (TNC093) Tennessee Issued by the National Weather Service