The GFS and ECMWF computer models continue to toy with the idea of a moderate snowfall mid next-week across the eastern side of the U.S. The GFS, in particular, is simulating around 2-4″ of snow widely from Arkansas, through Tennesse, and into West Virginia and parts of the East Coast from moderate snowfalls on Tuesday (10th December 2019). The GFS then continues to extend snowfall eastwards on Wednesday with some moderate snowfalls along the east coast, with 5-6″ in New Jersey and 5-6″ in NYC. Of course, these are just computer simulations, and are likely to change between now and then.
This map (via Pivotalweather.com) gives an indication as to where the snowfall may be – it’s a rather fine line which makes this a bit of a tricky forecast. Nontheless, areas in a line from Arkansas to NYC are at risk (no more than a risk at this stage) from some significant snow accumulations next Tuesday through to Thursday.
This area could shift 100 miles to the west and sudden most places that were due snow are due rain – that is ultimately why there’s so much uncertainty. Stay tuned.
Notice, also, the large area of snowfall over the far north of the country. That’s thanks to a separate system altogether. This system is expected to affect the very far north of the states from Monday and into Tuesday, producing heavy outbreaks of snow and perhaps up to 20 inches of snow in places! Some parts of Northern Wisconsin and Central Minnesota could see 12-16″ from this storm; widely between 6 and 12 inches from Montana through to Quebec. Some strong winds are possible with this storm (not overly strong, but 30-40mph in gusts), therefore some temporary blizzard-like conditions are possible especially on high ground. The risk of drifting snow can’t be ruled out either. Notice also, the purple area over Quebec, indicating that up to 20-25″ of snow could fall in places here in the next couple of days.
This storm will then clear out of the way by Tuesday, however by then the next system will begin to build in across central parts of the states, initially with heavy-rain for Texas, but potentially moderate (albeit wet) outbreaks of snow from the Appalachians and towards the East Coast. As mentioned, this system is proving difficult to pin down, so exact details are far from certain at this stage. We’ll know for definite by late Monday, which ares are likely to be affected from this next snow storm.