Meteorologists were left speechless Tuesday as record amounts of snow fell along the Gulf Coast. Here’s why it was so snowy.

A major winter storm slammed the southern United States Tuesday, blanketing parts of the Gulf Coast with record-breaking snowfall in a region largely unaccustomed to extreme winter weather.

A record-setting snowstorm along the Gulf Coast has Louisiana officials worried people unaccustomed to the cold might overreact in ways that could get them killed. Hence, a strange warning was issued ...