Any mixing or rain that does occur will return to snow as the system moves northeastward and cooling takes place on its west side, forecasters say. New snow accumulation of around 2 inches.
Depending on where "the line" falls means Floyd County could see heavier snow in the Check and Copper Hill area and a lighter "wintry mix" towards Willis and the North Carolina line.
Sussex County is also under a hazardous weather outlook along with more northern areas regarding the snow forecast. There's now a 50% chance of at least 12 inches of snow, according to the Post.
Bitterly cold weather with wind chills below zero and in single digits are expected in Greater Boston throughout Tuesday, the weather service said.
It is still too early to nail down the exact details, especially since the jet stream energy for this storm is just coming off the Pacific Ocean today and the main storm doesn't form until Thursday.
Forecast models say NY and Philadelphia could end up getting sleet and freezing rain for part of the storm, which would keep snowfall totals down, Otto said.
Although much of the focus is on how much snow and ice will fall from Winter Storm Jonas, don't forget about the potential for power outages and significant coastal flooding.
Temperatures won't be cold enough for much more than that at this time.
Because the storm is likely to hit after the traditional Monday through Friday workweek is over, the effect on schools and businesses is expected to be minimal, but travel will be hard. If the storm deviates on its projected track in one direction, there could be a foot or more of snow here.
Snow will move into the I-70 corridor Friday night.
Thursday's forecast states: "Any freezing fog clearing slowly with some sunny intervals developing". The rain becomes more isolated in nature by the late afternoon and skies will stay cloudy.
Milder weather is expected to arrive at the weekend with rain on Friday, dry conditions on Saturday and more rain on Sunday.