Much of the north country is in a winter storm warning until 8 a.m. Thursday.
That warning is for Jefferson, Lewis and Oswego counties.
There's a winter weather advisory for St. Lawrence County until 8 a.m. Wednesday.
It's all because of a nor'easter that's prompted blizzard warning for Boston and other parts of New England.
The areas with the warning could see from 12 to 22 inches of snow until it wraps up. That includes the rest of the day Tuesday, Tuesday night, all day Wednesday, and Wednesday night.
Most of that is expected in the higher elevations of the Tug Hill and western Adirondacks.
St. Lawrence County could see from 5 to 8 inches through Wednesday morning.
The snow is expected to be wet and heavy everywhere and could make roads slick.
Blowing snow could significantly reduce visibility.