Through thick snow, Carol Schmitt pulls her daughter, Nicole, on a sled while walking her dog, Snoopy, on snow-covered Spring Street in Spring Lake, Mich., Wednesday. AP Photo

CHICAGO - More snow fell across the northern states Thursday, a day after a deadly storm grounded hundreds of flights, postponed a baseball game, iced up roadways and disappointed those longing for the warmth of spring.

A jet trying to land in heavy snow skidded 50 feet off a runway in Traverse City, Mich., early Thursday. The plane remained upright, and the 46 passengers and three crew members were unhurt, Pinnacle Airlines spokesman Phil Reed said.

Six deaths elsewhere were blamed on the slick conditions.

Some areas of the Midwest got more than 9 inches of snow, with another inch or more expected Thursday before the snow starts tapering off. The worst of the storm blew into the Northeast on Thursday, dropping up to 8 inches of snow in the Adirondack Mountains.

“I think we are all cranky about the weather,” said Pat Rowe, spokeswoman for Milwaukee's General Mitchell International Airport, which had delays and cancelations Wednesday.

In Chicago, more than 550 flights were canceled at O'Hare International Airport because of poor visibility, said city aviation spokesman Gregg Cunningham. Operations were mostly back to normal Thursday, city aviation spokesman Gregg Cunningham said.

The 3 inches of snowfall recorded at O'Hare surpassed its record for the day of 2.3 inches set in 1957.

Milwaukee also broke a snowfall record for the date with 7 inches; the previous record of 3.2 inches was recorded in 1997. The town of Taylor, in west-central Wisconsin, had 9.5 inches. North Dakota and South Dakota got about 7 inches of snow. Some areas of northern Illinois reported up to 6 inches.

“It's kind of flying sideways,” hardware store owner Harvey Neu said in Menomonee Falls, Wis. “It's not like a gently falling snowfall. It's more of a get-out-of-my-face type of thing.”

Wednesday's Houston Astros at Chicago Cubs game had to be postponed because of the storm. Last weekend, heavy snow wiped out scheduled Mariners-Indians games for four straight days at Cleveland. The Indians moved their home stand against the Angels to Milwaukee's enclosed field.

In Minnesota, slick roads apparently caused a pileup involving at least 70 vehicles along Highway 169 just southwest of Minneapolis. At least two people were seriously injured, the State Patrol said. Six people were killed in two separate accidents in Iowa, including a woman and her two children whose minivan collided with another minivan in the state's south-central region.

As a precaution, 177 snow removal trucks hit Chicago's streets Thursday morning in anticipation of rush-hour traffic, according to Matt Smith, a spokesman for the city's streets and sanitation department.

Snow this late is not that unusual, said weather service meteorologist Andrew Krein in Chicago.

“Typically every few years we'll get some snow in April,” Krein said. “Snow in April is not unheard of.”