A powerful winter storm that spawned tornadoes in the Deep South and brought Christmas Day snow to Dallas moved eastward on Wednesday, bringing blizzard conditions in Indiana and Ohio and severe thunderstorms in the Southeast before it was expected to cause heavy snow and rain in the Northeast, forecasters said.
By Wednesday afternoon, more than seven inches of snow had fallen in Indianapolis, the National Weather Service reported, with nearly one foot expected from Indiana to Pennsylvania by the time the storm blows farther north.
Cleveland, which braced Wednesday for a foot of snow and 45-mile-per-hour winds, was placed under a blizzard warning until Thursday, with the National Weather Service warning of impassable roads and near-zero visibility. Detroit was expecting five inches of snow. Hundreds of flights were canceled across the region, leaving thousands of travelers stranded.
The brunt of the storm was expected to hit western New York and extend into central Maine, forecasters said, an area that could get 12 to 18 inches of snow beginning late Wednesday afternoon. In Buffalo, as much as two inches each hour could be falling by Thursday morning, combined with 30-mile-per-hour winds, according to the Weather Service.
More than a foot of snow was also expected for the central Rockies over the next day or so, forecasters said.
On Tuesday, parts of the country unaccustomed to a white Christmas were hit hard by snow, including Little Rock, Ark., where nine inches fell, and parts of Oklahoma, where seven inches of snow contributed to a 21-vehicle pileup on an interstate outside Oklahoma City, the authorities said.
While that accident caused no serious injuries, a car crash in Major County, in northern Oklahoma, killed a 28-year-old woman as the vehicle she was riding in struck a tractor-trailer on a snowy highway, the Oklahoma Highway Patrol said.
Also Tuesday, a man died outside of Houston when he got out of his car to remove a tree that had fallen in high winds and blocked the road. As he tried to drag the tree away, a second tree fell and crushed him, according to the Harris County Sheriff's Office.
On Wednesday, more than 200,000 people remained without power, many in Arkansas, where winds toppled power lines and trees.
Thirty-four tornadoes were reported from Texas to Mississippi on Tuesday, prompting Mississippi Gov. Phil Bryant to declare a state of emergency after several of the state's counties were battered by storms, including a twister that destroyed homes in Pearl River County, said Danny Manley, the county's emergency management director.
A tornado also rolled through downtown Mobile, Ala., causing significant damage to Murphy High School and tearing off part of the roof of the Trinity Episcopal Church, but causing no serious injuries, according to the Mobile County Emergency Management Agency.
In California, two people died Monday in avalanches in the Sierra Nevada Mountains, where there was heavy snowfall over the weekend, the authorities said.
This article originally appeared in The New York Times.