Texas ? Yet another storm swept across the nation’s midsection Thursday, burying areas still recovering from an earlier wave of severe weather, tying up air travel and killing at least three people.

A 40-car pileup on Interstate 40 in the Texas Panhandle that killed at least one person was caused by blowing snow that limited visibility and left icy patches, said Wayne Beighle, a Texas Department of Public Safety trooper.

A fire truck rolled over while approaching the scene, slightly injuring a firefighter. The storm was responsible for two other deaths, in and near Amarillo, officials said.

More than 600 flights in and out of Chicago’s O’Hare International Airport, one of the nation’s busiest, were canceled, and others were delayed an average of two hours. Flights were also canceled at some other area airports, including Indianapolis, where 6 to 8 inches of snow was to predicted to fall.