As temperatures plummet, snow, ice and a rapid freeze-up will pose hazards to travelers across the south-central United States into early Wednesday.
Enough wintry precipitation will fall to heighten the risk of vehicle spin outs and multi-vehicle accidents. Significant delays are possible along stretches of interstates 10, 20, 35 and 45.
Road closures have already been reported in portions of Louisiana due to the wintry conditions.