This will be a harsh winter week with bitterly cold air and two snow events. The first is moving in now and looks to provide several inches in a very localized area. An area of low pressure is sliding south of New England right now and is providing an inch or two to the region along with 3-6″ in extreme SE MA. However, after the storm slides by, an area of convergence will set up along the coastline focusing additional heavy bursts of snow during the morning commute.
Pinpointing where these heavy bands set-up is like forecasting Summer thunderstorms…very, very difficult. But our best guess is that the band will set-up somewhere along the North Shore on up into Seacoast NH. Within it, the wind will be calm but the flakes will be fat and snowfall rates could be higher than 1″ per hour creating white-out conditions for a time during the morning commute. 6″ or more will fall within these narrow bands meaning that one town may have a lot of snow and a few towns over very little. The snow will taper off by midday and the sun will poke out for the afternoon.
Behind the storm some of the coldest air in years awaits us…hgh will range from 10-18 for the middle of the week and lows will be near zero in Boston with subzero temps inland. This cold will be dangerous and so keep an eye on the pets and your neighbors.
Our second chance of snow will come on Friday with a more typical storm capable of around 6″ regionwide.