WATCH ALERT: Freeze Watch issued March 16 at 2:38AM CDT until March 17 at 9:00AM CDT by NWS

…A HARD FREEZE EXPECTED THIS MORNING… .Cold air will remain overhead this morning. Temperatures will remain below freezing through late this morning. Another freeze is possible again tonight into Friday morning for most of the area. …FREEZE WARNING REMAINS IN EFFECT UNTIL 11 AM EDT /10 AM CDT/ THIS MORNING…

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