Winter storm hits Central North Carolina, bringing ice and sleet

Doctors and first responders are warning about the dangers of icy conditions.

Hospitals say they are treating patients injured during the winter storm.

Duke Health seeing more people for slip and fall injuries.

Doctors at UNC Health and WakeMed say they have treated a number of children for sledding related injuries.

That includes broken bones, concussions, and some internal injuries all from sledding.

"The kids are not able to stop those sleds whatsoever. You know, when you have snow, you can actually put your feet in the snow, it causes some friction. There's no friction whatsoever with ice," said Dr. Daniel Park.

First responders also urging people not to walk on frozen bodies of water.

Thick ice does not form on lakes and ponds in North Carolina.

And taking the wrong step could result in a life-threatening situation.

Hospitals say they are treating patients injured during the winter storm.

Wake County Public Schools will hold remote learning on Wednesday.

WCPSS also held remote learning days on Monday and Tuesday because of black ice concerns.

Athletic and extracurricular events scheduled for Wednesday are also canceled.

Wednesday will once again be a remote learning day for Durham Public Schools.

Though most main roads are clear, many neighborhood and secondary roads, as well as school campuses, remain covered with ice.

All DPS extracurricular activities and events, including practices and athletic events, are canceled for Wednesday.

Wednesday will also mark the third consecutive day with remote learning for Orange County Schools.

All schools and facilities will remain closed. All athletics and after-school activities for Wednesday are canceled.

Officials said about half of the secondary roads in the county remain icy and hazardous for travel.

A decision has not been made about school on Thursday, and the district will make that announcement as early as possible on Wednesday.

Also, the K-8 Math Night scheduled for Thursday at New Hope Elementary has been rescheduled to March 19.

American Airlines said this was the most disruptive storm in the airline's 100-year history. American has canceled more than 9,000 flights and expects impacts to be felt for two more days.

American said 25% of its Tuesday flights are canceled. Across the U.S., more than 1,800 flights are canceled on Tuesday, with Dallas, Boston and New York hit the hardest.

Over 11,000 flights were canceled on Sunday, marking the highest day for cancellations since the pandemic, according to Cirium data.

-ABC News' Sam Sweeney

At least 35 deaths have been attributed to the storm nationwide, according to the Associated Press.

In Fannin County, Texas, north of Dallas, three brothers died after falling into an icy pond, officials said.

In Frisco, Texas, near Dallas, a 16-year-old girl died from a sledding accident, according to Frisco police. The victim and another girl were being pulled on a sled by a teenage boy driving a car when the sled struck a curb and then hit a tree, police said.

In the Austin area, a victim was found dead in the parking lot of an abandoned gas station from apparent hypothermia, officials said.

In Arkansas, a 17-year-old boy died after he was pulled by an ATV in the snow and struck a tree, according to the Saline County Sheriff's Office.

In Lehigh County, Pennsylvania, three people died while removing snow, the county coroner said. The victims ranged in age from 60 to 84, the coroner said, adding, "I remind the public to use caution when shovel snow ... especially individuals with a history of heart disease or other medical concerns."

Eight people died in New York City and a retired police officer died on Long Island while shoveling snow, according to New York ABC station WABC.

Another man was found dead with a shovel in his hand in Verona, New Jersey, according to local police.

In Massachusetts, a woman died after a snowplow backed into her in a parking lot, local officials said.

Deaths were also reported in Tennessee, Louisiana, Mississippi, Kansas, Ohio and South Carolina, according to officials.