The National Weather Service issues Frost Advisories and Freeze Watches and Warnings during the Mid-South growing season to give a heads-up to agricultural interests (primarily) of cold temperatures that could damage crops and other outdoor vegetation. Since a large part of the area has seen sub-freezing temperatures already, no further watches/warnings/advisories will be issued for those parts of the Mid-South. Areas that could still see watches/warnings/advisories include Shelby County, northwest MS, and east-central AR.
Here is the official statement from NWS-Memphis:
Minimum temperatures this fall season have fallen to freezing or below across much of west Tennessee, northeast Arkansas, the Missouri Bootheel, and northeast and north central Mississippi. Therefore, frost/freeze headlines in this area will end for the season.So, if a Frost Advisory is issued for Shelby County, but our friends in Fayette and Tipton Counties don't receive that advisory, this is the explanation. In the MWN coverage area, no additional headlines are expected this fall for Tipton, Fayette or Marshall Counties.
The need for frost/freeze headlines will continue for east central Arkansas, northwest Mississippi and Shelby County Tennessee. This is an area roughly south of U.S. Highway 64 and west of Interstate 55. Unless a freeze is observed beforehand, then frost/freeze headlines will be issued in this area no later than November 15th.
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