It is turning out to be more of a sleet and Ice situation the closer we get to the storm. Precipitation should start out as snow after midnight tonight. The snow will change to rain across southeastern sections of Mass, most of RI and southern CT.
Others will change from snow to sleet and/or freezing rain. The change over will happen from southwest to northeast. Northeast mass could see the highest amount of snow as the change over will occur there the latest, which might keep ice and sleet accumulation down as the heaviest of precipitation should be over by around noon . Once the precipitation becomes lighter Most in southern new England should change to plain rain. There could be more Icing tonight due to light freezing rain/freezing drizzle
Snow map
Snow map
Orange. there could be a quick inch of snow in the region colored in orange but the change over from snow to sleet/freezing rain will be relatively quick across the western sections. There will be a quick change to rain in areas of southeast mass.
In the yellow 1-3 inches of snow and sleet is possible. There will be a heavy burst of snow possible before a change over to sleet and freezing rain.
In the purple the change over from snow will be a bit longer and will allow some accumulation. the further north the higher the amounts as well as elevation. Should change over to a period of sleet and freezing rain before changing over to a period of plain rain before ending.
In southern new England expect the lower ends of the snowfall forecast at this time.
Black 5-10 inches of snow and sleet. There could be some locally higher amounts in higher elevations and where it stays all snow.
the map on the right shows where the best chance of ice accumulation of 0 to .2 of an inch is possible as well as an inch of sleet. The best chance is in the Berkshires and southwest New hampshire
the blue is winter weather adivisory. Its in effect from midnight tonight through tuesday morning. this is for snow, sleet and freezing rain. This includes the shaded area in purple
Purple is an Ice advisory. Ice accumulations of up to .2 is possible in this region as well as an inch of sleet, this can cause more issues than the snow. The best chance of Ice accumulation of .2 of an inch is across the Berkshires and up into southwest New Hampshire/northern Merrimack valley. Northeast mass could be spared due to the later transition
road conditions
road conditions along the i95 corridor up to Boston points east will see areas of level 2 road conditions, expect minor delays and some slick spots predawn hours, travel conditions should quickly rebound and only minor delays should occur
In the yellow regions north of the i95 corridor expect level 3 road conditions, this is not due to snow accumulation as snow accumulation is not expected to exceed 3 inches but due to accumulating sleet of up to 1 inch.
In the Orange shade expect level 4 conditions in central and northern Maine. Northern New Hampshire is due to the higher amount of snowfall. In Massachusetts southern Vermont and southern New Hampshire it is due to the mix of snow, sleet and Ice accumulation but mainly due to Ice and sleet
Red shaded area around I91 could see areas of level 5 road conditions, severe road conditions mainly due to the Ice.
They heavy Precipitation should end in the afternoon but periods of lighter precipitation will continue. Over night tuesday freezing drizzle/light freezing rain could form over the Merrimack valley.
Another system will travel wednesday night giving the region a period of rain late wednesday night. “colder “weather returns afterwards, when I mean colder, I mean around average.
Merrimack valley weather 