"Storms Snarl U.S. Travel, Threaten Rare Winter Tornadoes"

"Snow, sleet and hail snarled transportation across swaths of the United States on Monday during one of the busiest travel weeks, after dozens died in U.S. storms that were part of a wild worldwide weather system seen over the Christmas holiday period.

More than 40 people were killed by tornadoes and floods in the United States during the holiday season, where rare winter tornado warnings were issued in Alabama on Monday.

Alabama, Mississippi and the Florida panhandle were expected to bear the brunt of the of the day's strongest storms, AccuWeather senior meteorologist Michael Leseney said."

Mary Wisniewski reports for Reuters December 29, 2015.

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"Winter Storm Brings Snow, Sleet To Midwest, Northeast After Slamming Texas" (Reuters)