Winter storm expected to bring snow from the Dakotas to the East Coast

A major winter storm produced snow over parts of North Dakota early Friday and would bring snow and ice south on Saturday before turning to the East Coast, where forecasters said rain and snow would fall on Sunday or Monday.

Details about which East Coast towns would see snow, and how much, remained unclear. But some airports and transportation departments are already bracing for potential travel problems.

David Roth, a senior forecaster with the National Weather Service, said on Thursday evening that meteorologists expected the forecasts to evolve.

“There’s more uncertainty than usual,” Mr. Roth said. “When we’re dealing with the difference between rain and sleet and icy rain and snow, subtle changes make a big difference.”

Snow fell in parts of central and eastern North Dakota early Friday, according to the weather service in Bismarck. Road conditions quickly deteriorated, they said. Several cities had been warned of a winter storm through Friday, and parts of that state could see a swath of heavy snowfall, totaling more than eight inches, meteorologists said.

“This snow, combined with gusty winds, will make for slippery, snowy roads and significantly reduced visibility,” the Weather Service said. Twitter. “Travel is likely to get dangerous to dangerous at times.”

The storm is expected to move southeast toward Iowa on Friday, where many cities will receive a winter warning Friday through early Saturday. According to the Weather Service, six to 10 inches of snow is possible in northern and central Iowa, according to the Weather Service.

Southwest Airlines warned Thursday that travelers traveling through or from Des Moines International Airport could see flights delayed, diverted or cancelled. Other cities covered by the airline’s travel advisory include St. Louis, Kansas City, Mo., and Omaha, Neb. American Airlines and Delta have made similar announcements regarding the weather.

According to the Weather Service office in Paducah, Ky, the storm could bring wintery weather to parts of western Kentucky and southeastern Missouri Friday night, with snowfalls up to four inches possible.

On Saturday, the storm system is expected to continue moving southeast toward the state of South Carolina, northeastern Georgia and western North Carolina. Dozens of towns in the region are under winter storm watch from Saturday evening to Monday morning. The weather service said mixed precipitation was possible in the area, with up to 10 centimeters of snow possible, along with possible accumulations of ice.

Dave Nadler, a meteorologist with the Weather Service office in Peachtree, Georgia, said in a briefing that some ice accumulation in northern Georgia could be significant.

“We are looking at the potential for a significant winter storm,” said Mr. nadler. “The looks of that and the confidence of that is starting to increase.”

The storm system will then move northeast toward the east coast, Mr. Roth. Wintery weather will be possible in several cities, including Washington, Philadelphia and New York City, but details about how much or what type of precipitation were unclear.

“We would be in a transition area where it could start as snow, then it would rain and then back to snow,” said Mr. Roth.

The uncertainty in the forecast may be worrisome for those living along Interstate 95 in Virginia after a snowstorm early this month left hundreds of drivers stranded in their vehicles for more than 24 hours.

While there is uncertainty in the forecast along the I-95 corridor and to the east, the greatest impact and heaviest snow is expected west of the area, according to the report. weather service.

Still, the Virginia Department of Transportation took no chances, and on Thursday crews began spraying sections of I-95 with a solution of salt and brine, which helps prevent ice from adhering to the roads.

“On Sundays, drivers should avoid unnecessary travel with the potential for dangerous weather and road conditions during or even after the storm,” the department said in a statement. “Icy to slippery conditions remain possible even with pre-treatment.”

Finally, by the end of Sunday and into Monday, the system could bring snow to New York. Parts of the state may record up to six inches of snow or more, but New York City is unlikely to register significant snowfall, the weather service said.

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