A record-setting winter storm left Dallas with more than a foot of snow and tens of thousands of people without electricity in freezing conditions.
Oncor reported 175,000 homes and businesses were without power before dawn Friday in the Dallas-Fort Worth area.
American Airlines spokesman Steve Schlachter says the carrier, with its main hub at Dallas-Fort Worth International Airport, canceled about 240 flights Friday.
School districts in Dallas and Fort Worth were closed Friday. The snow-covered roof of a tire warehouse in Dallas collapsed at a time when the store was closed.
The National Weather Service says the snow tapered off Friday, after totals ranging from 6-14 inches in north Texas.
NWS says the all-time 24-hour snowfall record for Dallas-Fort Worth was broken Friday morning, with 12.5 inches. The previous record was 12.1 inches set in 1962.