The NWS reminds residents that the weather can vary form locally heavy snow in narrow bands to clear skies just a few miles away.
About three inches is expected in the Buffalo metro area by later Friday, but areas south of the city in ski country can expect much more.
A winter weather advisory has been issued starting at 5 a.m. until 1 p.m. Thursday for Orange and Putnam counties, according to the National Weather Service. The chance for snow is around 30 percent.
Even lower elevation areas such as Pocatello, Preston, Blackfoot, Idaho Falls, American Falls and Rexburg could see an inch or two of snow on Sunday.
Snow levels were expected to plunge significantly as a result of this cold air, initially into the 1500-2500 foot range on Monday then gradually descending to 750-1500 feet late Monday night into Tuesday, depending on location.
Friday should be partly sunny with temperatures climbing into the low 40s.More news: Dylann Roof won't offer defense during sentencing
Thursday in Shawnee County the high is expected to be around 47 degrees with a breezy west wind that could gust up to 30 miles per hour and clear skies. Southwest wind gusts close to 40 miles per hour are possible between about 2 and 5 p.m.
High temperatures today will be in the mid 30s. That will make it feel like it's only in the 20s.
Locally unsafe New Year's Eve travel conditions will riddle the Great Lakes region in the wake of the northern New England blizzard to end the week.
The weather service says that as you move east, the accumulations will grow.
New Year's Day and early 2017.
Monday, Jan. 2: Snow turning to rain, high 43 degrees.