Several tornadoes hit Texas and Louisiana in the United States as a powerful storm system that dumped snow in California moved eastward, leaving hundreds of thousands of people without power and causing the cancellation of hundreds of flights to and from Dallas.

The tornadoes knocked out power to nearly 340,000 users in Texas Thursday night, according to, which tracks U.S. power outages.

As of Friday morning, that number was still 120,000.

The specialized portal indicated that Dallas-Fort Worth International Airport and Dallas Love Field recorded about 600 flight cancellations of arriving or departing flights.

Several school districts, including Dallas and Fort Worth, canceled classes or activities due to weather forecasts.

Tornado warnings issued for Dallas, Fort Worth and surrounding areas in Texas expired late Thursday evening, although strong winds and hail continued, according to the National Weather Service (NWS).

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