PELHAM, Ala. (AP) -- Icy roads are causing travel problems in north Alabama.
Authorities briefly had to shut down northbound Interstate 65 in the Birmingham suburb of Pelham early Tuesday because of slick spots on an overpass. The road reopened after workers spread sand on the bridge.
More than 30 school systems delayed opening by two hours to allow for roads to thaw out as temperatures rose. That includes systems around cities including Birmingham and Huntsville.
Forecasters say travel problems are linked to wet spots that froze overnight and freezing fog that both slickened pavement and can reduce visibility to less than a quarter-mile in places.
Conditions will improve as temperatures rise toward an afternoon high in the upper 40s.