An area of low pressure is expected to track near the South Coast of New England tonight bringing with it a round of accumulating snow, especially between midnight tonight and daybreak on Saturday morning. Precipitation initially in the form of rain across the valleys of Western and Central Mass & a rain-snow mix across the higher elevations will move in between 9 pm and midnight tonight. Once the precipitation begins, temperatures are expected to quickly fall to near freezing causing the precipitation to change to all snow across the entire area around or just after midnight tonight. A period of moderate to heavy snow is then expected with snowfall rates of 1 inch per hour are expected between about midnight tonight and daybreak Saturday morning. A majority of the snow accumulation will be on grassy and non-pavement surfaces, however, some accumulation of wet heavy snow is possible on roads if the snow comes down hard enough late tonight. The snow is expected to continue through part of Saturday morning before coming to an end just before midday Saturday. There are no changes to my thinking regarding snow accumulations for tonight and Saturday morning – The highest snow amounts of 4 to 6 inches are expected across the Worcester Hills, the Berkshires and the Hilltowns of Western Mass. Across the lower elevations, such as the Pioneer Valley of Western Mass & the Blackstone Valley of Central Mass, 2 to 4 inches of snow accumulation is expected. Be aware that scattered power outages are possible across the Worcester Hills, the Berkshires and the Hilltowns of Western Mass as more than 4 inches of heavy wet snow is expected.
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