Freeze Warning issued December 18 at 3:05PM CST until December 19 at 8:00AM CST by NWS

...A FREEZE WARNING IN EFFECT TONIGHT ... .COLD HIGH PRESSURE BUILDING IN BEHIND A COLD FRONT ALONG WITH CLEAR SKIES WILL ALLOW TEMPERATURES TO FALL TO AT OR BELOW FREEZING AWAY FROM THE IMMEDIATE BEACHES TONIGHT. GIVEN THE PROLONGED ANOMALOUSLY WARM TEMPERATURES AS OF LATE...THE NWS IN MOBILE HAS DECIDED TO ISSUE ONE LAST FREEZE WARNING GIVEN SENSITIVE VEGETATION WITHIN OUR REGION.

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/1QymQec