DETROIT, Michigan (AP) -- A pre-winter blend of snow, sleet and freezing rain cut visibility and iced over highways from the Great Lakes to New England, dumping up to a foot-and-a-half of snow, stranding air and road travelers and causing an airliner to skid off a runway.
The weight of ice and snow caused a pharmacy roof to collapse in Boston, Massachusetts, on Sunday.
School districts across the region -- including Michigan's largest, in Detroit -- canceled Monday classes.
Slippery roads were blamed for four weekend deaths in Indiana, two in Michigan and one each in Wisconsin and Pennsylvania.
The northern New York state community of Peru had 18 inches of snow, and high wind Monday morning whipped up fallen snow across the state, the National Weather Service said. In Michigan, Ann Arbor measured 10½ inches and parts of Indiana had 14 inches.
"It's winter," said Ann Arbor resident Linda Thelen, 53, as she and her husband dug out their home. "I expect a couple of these each year." Watch why snow is fun for some »
In Rhode Island, a U.S. Airways Express Flight from Philadelphia carrying 31 passengers and three crew members slid off the runway when it landed at T.F. Green Airport, which got nearly 8 inches of snow.
No injuries were reported, but the airport had to close its runways for about 2½ hours. Barb Jones, a spokeswoman for Air Wisconsin, which operates the jet, said the incident was under investigation.
Flights were also canceled at airports in Portland, Maine; Buffalo, New York; and Manchester, New Hampshire.
Few major problems -- though plenty of delays -- were reported at airports in Philadelphia and the New York area, which had braced for plenty of snow but got mostly sleet and rain.
Every available plow truck was at work in Vermont, said Reggie Brown, highway department dispatcher in Montpelier. "Everybody's out and running," he said.
Braving the elements Sunday in New York were fans of teen singer Hannah Montana, whose concert in Rochester drew Jolene Horton and her 8-year-old daughter, Paxtyn Brown.
They spent five hours on the road from Schuyler County in the Finger Lakes. "Normally it would have taken 2½ hours, but we wouldn't have missed it for the world," Horton said.
AAA Michigan said it helped more than 3,000 motorists Sunday. Most had spun out, gotten stuck or couldn't start their vehicles, spokeswoman Nancy Cain said. See photos of people battling the elements »
The four storm-related deaths in Indiana occurred when a van carrying a woman and her three daughters skidded into a pond in Carmel, Indiana. The driver, Batul Abbas, 47, was able to dial 911 from the van and give the location, but the vehicle was underwater when emergency crews Saturday night, authorities said.
Many churches canceled Sunday morning services as law enforcement officials encouraged motorists to stay off the roads if possible.
University of Michigan's winter commencement in nearby Ann Arbor was held as scheduled on Sunday afternoon. Rasheed Mathis, 27, drove from Detroit to see his cousin graduate.
"It was nasty," he said of the drive. "Just nasty, but he came to see me graduate and I wanted to be there for him."
The storm also didn't keep fans away from the New England Patriots-New York Jets game at Foxborough, Massachusetts, but they had to shovel off their seats in the stadium. A video of a fire roaring in a fireplace was shown on the scoreboards.
The ice and wind in northeast Pennsylvania toppled two 800-foot television towers on Penobscot Mountain in Luzerne County, knocking several stations off the air.
The storm came less than a week after an ice storm in the Midwest and Northeast that was blamed for at least 38 deaths, mostly in traffic accidents. Up to a million homes and businesses lost power in parts of Oklahoma, Kansas and Missouri. See how winter storms form »
On Monday, Oklahoma utilities said just more than 126,000 customers were still waiting for electricity, most in the Oklahoma City and Tulsa areas.
Among those waiting for service to be restored, Choctaw resident Beverly Smith said her trailer had been without power for seven straight days as of Sunday.
"We don't have anywhere to go," said Smith, who lives with her 15-year-old son. "We're out of money. Christmas is nine days away, and I have no hope of giving my family a Christmas all."
