The latest developments on the severe storms across the U.S. (all times local):
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9:20 a.m.
The Texas and Oklahoma Panhandles are bracing for what National Weather Service forecasters are calling a “historic blizzard.”
Between 6 to 15 inches of snow are in the forecast for the region, which includes Amarillo and Lubbock. High winds will drive wind chills as low as 10 below zero and cause low visibility due to blowing and drifting snow.