BIRMINGHAM, Ala. (AP) — The death toll in the South now stands at 18 after less than a week of severe weather — unusual warmth, tornadoes and torrential downpours — that has wreaked havoc over the Christmas holiday.

Two deaths attributable to weather were reported Saturday in Mississippi, bringing that state's death toll to 10. Late Saturday, one death was reported in Alabama.

In Texas, meanwhile, residents are hunkered down for what the National Weather Service is calling a "historic blizzard." Some parts of the Panhandle could see as many as 14 inches of snow, with sub-zero wind chills and accumulating ice. Residents in Lubbock and Amarillo are preparing for a storm expected to begin Saturday night.

Severe storms are forecast for Sunday night through Monday in Mississippi as a strong cold front pushes through. Tornadoes are possible, and residents are asked to remain alert.

Six people were killed in Tennessee, including three who were found in a car submerged in a creek. Authorities are monitoring areas for possible flooding.

One person died in Arkansas, and dozens of homes were damaged or destroyed.