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Freezing rain, sleet and sub-freezing temperatures forced the cancellation of more than 1,000 flights into and out of Dallas/Fort Worth international airport today.
At least 15 states from North Dakota to Maryland were under a wind chill advisory with warnings of sub-zero temperatures.
Arctic air was also returning to the northeast of the US, with icy conditions expected from Boston to Washington D C.
Winter storm warnings continue for a large portion of northern Louisiana and parts of Texas, Arkansas and Mississippi, which are under winter storm or freezing rain advisories, ABC News reported.
Authorities at Dallas/Fort Worth international airport and airlines urged travellers to take extra precautions.
A new storm system in the southwest is expected to bring rain and snow to California, Nevada and Arizona.