“Early season snow possible for the higher terrain of West Virginia, western Pennsylvania, and central New England.” That line comes from the extended forecast discussion the National Weather Service’s Weather Prediction Center issued at 3 p.m. Eastern on Monday, Nov. 9. It describes a storm that is still several days away, and the forecasters say plainly that its track and effects are not settled.
The setup is a surface low that develops over the Mid-Atlantic by Thursday night, Nov. 12, then strengthens offshore on Friday, Nov. 13. Cold rain is the main event for most of the region, and snow is favored only where elevation helps. Colder air behind the system is expected to hold highs well below normal across much of the East.
A Mid-Atlantic Low Forming Thursday Night
The discussion ties the new low to an upper-level trough that is expected to deepen over the Great Lakes and Midwest. Heavier rain now looks more likely over the northern Mid-Atlantic than over Upstate New York, a trend the forecasters point out. Anyone sorting out what the first cold nights mean for the yard can compare a light frost with a hard freeze in this explainer on 28-degree and 32-degree readings. Gardeners hoping to keep greens going into winter may also like the elevated garden bed ideas on Frenz Hub.
The forecasters flagged a notable amount of spread among the computer models. The European and American (GFS) solutions diverge considerably on the strength and timing of the trough, with the European run faster and farther north and east and the GFS slower and deeper. The blend leans toward the GFS and its ensemble partners, which is why the discussion keeps its language cautious.
Snow Chances on Higher Ground
The word that matters in the snow forecast is “possible.” The discussion names the higher terrain of West Virginia, western Pennsylvania and central New England, and nothing in it promises accumulation in valleys or cities. Readers in those states can see how the Weather Prediction Center rates winter weather odds several days out on its day 4 to 7 winter weather probability page.
For New England, the early snow arrives against a bigger seasonal backdrop. The latest Northeast winter outlook published here covers where coastal rain and inland wet snow are favored later in the season, and this week’s system is only a first taste.
Behind the low, the discussion expects lake effect rain and snow showers as much colder air moves south across the Great Lakes. A separate short-range discussion covering Nov. 10 through Nov. 12 mentions two quick-moving lows that bring scattered showers to the lower Great Lakes and interior Northeast, the second from Tuesday night into Wednesday morning, so the region is already in a wet stretch before the bigger system arrives. Where heavy wet snow and wind do raise the odds of lost power, these power outage mistakes to avoid are worth a read in advance.
Highs 5 to 15 Degrees Below Normal East of the Mississippi
Temperatures start out mild in the middle of the week, then change on Thursday and more so on Friday as the upper trough takes hold. The discussion expects highs from the Southeast to the Mid-Atlantic to run 5 to 15 degrees below normal before a gradual moderation next weekend.
Frost is part of the picture too. Many areas across the Ohio Valley, the Tennessee Valley and even parts of the Deep South could see the first frost or freeze of the season by Saturday morning, Nov. 14. Households that have not yet run the heat can run through the steps before turning on the furnace, from changing the filter onward.
A chilly, damp weekend also suits indoor projects. Hosts getting the house ready for holiday guests can weigh Shark and Bissell vacuums for pet hair, and families already mapping out Thanksgiving trips can compare 3-piece luggage sets or carry-on suitcases before the packing starts.
The cold air stays mostly east of the Mississippi. Across the central and northern Plains, an upper-level ridge keeps temperatures above average on most days, with highs possibly 10 to 20 degrees above mid-November norms.
What Remains Unsettled Before Friday
Because the track is uncertain, the line between rain and snow can move from one forecast run to the next, and the Weather Prediction Center says as much. Its day 4 to 7 rainfall forecast and medium-range hazards outlook change as new guidance comes in, and the National Weather Service’s local forecast pages carry the detail for each town.
Anyone planning to be on the road Friday in the mountains of West Virginia or western Pennsylvania may want a backup plan. Temperatures are expected to moderate gradually next weekend, so the cold stretch looks short.
The wider pattern explains the split. The discussion describes an upper-level ridge building from the southern Plains to central Canada, while a stronger trough settles over the East Coast states, which is why one half of the country enjoys mild afternoons while the other braces for a cold rain.
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This article was produced with AI assistance and edited for accuracy against the sources linked above.
Image: ForestWander – CC BY-SA 3.0 us/Wikimedia Commons