This winter's harshest arctic blast so far is coursing through Texas as the state is the worst in the world for flight cancellations.

A winter storm that rolled through Southeast Texas and the U.S. Gulf Coast dumped multiple inches of snow on Tuesday across a region already gripped by freezing temperatures. How much snow did Houston get and how does that compare to the snowfalls in New Orleans and across the deep South and Gulf Coast?

A rare frigid storm is charging through Texas and the northern Gulf Coast, blanketing New Orleans with snow. (AP Video shot by Gerald Herbert, Stephen Smith, Jack Brook)

Traffic is slow-moving across the Houston area on Thursday as cars return to the roadways after Houston's historic winter storm. There is still some ice on the roadways, especially on overpasses and bridges,

Houston is halfway through the worst effects of Winter Storm Enzo and has so far avoided severe damages, said Mayor John Whitmire Tuesday evening.