A winter storm that threatens snow, ice, and rain along the way will carve a path form the Gulf of Mexico to southeastern Canada starting Wednesday night Nov. 14 and running through Friday Nov. 16, according to AccuWeather.

The weather forecasting firm is expecting that there will be delayed travel for motorists over those three days as well as disruptions in air travel. The storm is part of what AccuWeather is calling a “weather pattern more typical of late December or early January” that is bringing much colder-than-average conditions for the middle of November and is also “packed with winter-like storms.”

AccuWeather said the storm will “allow an icy mix to spread northward in a zone from western North Carolina to part of western Virginia, northeastern West Virginia, central and western Maryland, and a large part of central and southern Pennsylvania spanning Wednesday night to Thursday.”

Travel along much of the I-81 corridor over the southern and central Appalachians could be difficult and dangerous, the forecaster said. In addition, enough ice may accumulate to bring down trees and power lines.

Along the Interstate 95 corridor from Washington, D.C. to Boston, the bulk of the storm will be in the form of rain. However, AccuWeather meteorologists anticipate a wintry mix at the onset of the storm. 

The forecaster noted that for much of the I-95 swath, there is “potential for the first accumulation and slippery travel event of the autumn” as a coating to an inch or two of snow, slush and some ice may occur, with the greatest amounts in the northern and western suburbs.

"Since it may precipitate hard at the onset, when temperatures are near or below freezing in the I-95 zone from Washington, D.C. on up, there can be a quick accumulation that makes some roads slippery," said AccuWeather Senior Meteorologist Bernie Rayno.

Farther west, snow and a wintry mix is forecast to develop over parts of the Ohio Valley, the Ozark Mountains, and the lower Mississippi Valley on Thursday. The forecaster said road conditions may become slippery from northern Arkansas and southern Missouri to portions of Illinois, Indiana, Ohio, western Tennessee, and western Kentucky.

AccuWeather also advised that from Thursday night to Friday, a greater amount of snow and some ice can be expected across parts of northern and central Pennsylvania, part of northern New Jersey, western, central, and northern New York State and central and northern New England.