A storm system packing tropical moisture will drench the coastal Northeast on Thursday and will gather enough cold air to bring snow to northern New England and parts of the central Appalachians.
Areas from Atlanta to Boston to Portland, Maine, will receive rain during at least part of the day on Thursday.
AccuWeather Chief Meteorologist Elliot Abrams stated that the combination of rain and fallen leaves would lead to clogged storm drains and street flooding in parts of the Northeast.
"Showers from the South and Midwest will transition to steadier and heavier rain upon reaching the Northeast as the storm strengthens," Abrams said.
Motorists from Washington, D.C., and Baltimore to Philadelphia, New York City, Hartford, Connecticut, and Boston should expect travel delays from low visibility and poor-drainage area flooding. Minor flight delays are also possible.
Farther north, cold air will wrap in around the storm from northern upstate New York, northern New England and neighboring Canada.
According to AccuWeather Senior Meteorologist Brett Anderson, "From 6 to 12 inches [15 to 30 cm] of heavy, wet snow will fall from northern Maine to northern New Brunswick and the Quebec Gaspe Peninsula."
"Potentially, there could be some tree limbs coming down and sporadic power outages," Anderson said.
Cities from Montpelier Vermont, and Caribou, Maine, to Quebec City will receive accumulating snow from the storm.
Some of the snow will fall on areas of Maine hit by snow last weekend.
However, this time the heaviest snow will be shifted inland, over the northern mountains, rather than near the coast in Down East Maine. A bit of snow may mix in parts of southern New Hampshire and central Massachusetts, while rain is in the offing with this storm along the Maine coast and in eastern Massachusetts.
Colder air will funnel in on the back side of the storm from the Great Lakes to the mid-Atlantic and New England Friday into Saturday.
While the air forecast to move in is not quite as cold as that of last weekend, nor will winds be as strong, AccuWeather RealFeel® temperatures will plunge to winterlike levels.
As the colder air sweeps in, parts of the central and southern Appalachians will again receive some snow. However, snowfall in the mountains of Tennessee and North Carolina will be significantly less, when compared to the storm last weekend. Snow is not expected in lower elevations such as Columbia, South Carolina, this time either.
A couple of inches of snow are possible over the high terrain from southwestern Pennsylvania to southwestern Virginia spanning Thursday night into Friday.
A small accumulation of snow, on the order of a couple of inches, is possible from parts of northwestern Pennsylvania to western New York. The snow is most likely to fall in ski country of western New York, but some snowflakes may fall around Buffalo.
After another poke of chilly air in parts of the Great Lakes and Northeast later this weekend, a big blast of cold air is forecast to roll across much of the Central and Eastern United States later next week.
"Until that cold blast arrives later next week, people should not get used to any one kind of weather [as it will be very changeable]," Abrams said describing the frequent changes in the forecast.