A cold front is crossing New England Wednesday, though for most of Central and Southern New England the only indication of changing air will be a changing wind direction late in the day to change from a southwest breeze to a cold northwest winter wind.
In northern New England, the mountains will team with the passing cold front to breed scattered snow showers, with little accumulation except at the summits, but the open door to new, cold, Canadian air will send Wednesday night temperatures below zero north and into the teens south, with wind chill values for most of New England around or below zero.
A cold, windy start Thursday will give way to a diminishing wind with sunshine, though cold air will hold firm all the way through Thursday night, with a new approaching disturbance triggering snow showers Friday morning for the commute.
Snow showers Friday should drop a limited accumulation of a dusting to an inch for most of us, though the hills and mountains have the best chance of squeezing out a couple of inches before a mix of snow and rain showers cap off the event around midday to early afternoon.
Dry weather Friday afternoon through Saturday evening is a breather before the next, much stronger storm arrives Saturday night through Sunday. This late weekend storm will come in with abundant moisture, colliding with our antecedent cold air and producing an initial burst of snow that should bring out the plows for nearly all of New England, save, perhaps, for southeast Massachusetts and Cape Cod.
A change to rain will move north across much of southern New England on Sunday, but central and northern New England continue snowing, with heavy totals expected.
An arctic surge moves in for Martin Luther King Jr. Day, with wind chill values around zero at the warmest time of the day, and then another storm is likely late in the First Alert 10-day forecast.