HUNTSVILLE, Alabama — Parts of north Alabama are still shut down because of slippery roads left over from the winter storm.
Limestone County's courthouse and county offices are closed Friday, along with NASA's Marshall Space Flight Center.
A Roman Catholic church canceled morning mass because of lingering icy spots on roads, and more than 20 school systems are closed or opening late to let temperatures rise in the Tennessee Valley.
Conditions are better in central Alabama, but some businesses and schools are still opening late.
While the Birmingham metro area received only a trace of frozen precipitation Thursday, Alabama's northern counties received more than 1 inch of snow, sleet and freezing rain in areas.
Freezing temperatures overnight prevented thawing, but forecasters say temperatures should rise into the upper 30s and low 40s Friday.