Forecasters say north Alabama could be in for another round of wintry weather.
The National Weather Service says as much as one-quarter inch of freezing rain is possible across the Tennessee Valley and as far south as Sylacauga in eastern Alabama.
Forecasters have issued a freezing rain advisory in effect from midnight Thursday until 9 a.m. Friday.
The advisory includes the cities of Huntsville, Florence, Gadsden, Fort Payne, Anniston and parts of metro Birmingham.
Officials say travel could become a problem in the area overnight until temperatures rise above freezing on Friday. The precipitation is expected to turn to rain then.
In Birmingham, officials say hundreds of people have sought overnight shelter in the city auditorium during the cold snap. About 500 people stayed there Tuesday night.
Copyright 2013 The Associated Press.