New data in today continues to show a winter storm impacting southern New England this weekend. Storm timing hasn’t changed with the height of the storm still expected to be Saturday evening/night. That means we’re still more than a day away, and you’ll want to stay tuned to any updates in the forecast as we continue to track this developing storm and it’s eventual track/intensity.
Confidence this morning is high for a period of accumulating snow for ALL OF RI and SE MA. Most of the accumulations occur between 8pm Saturday and 2am on Sunday. The highest accumulations (inland) will be where we stay “all snow” with accumulation amounts less where sleet/freezing rain and rain mixes in the longest (near the coast). I’m still thinking that most of our area ends up with 3-6″ of snow with amounts up to 8″ in far northern/western RI. The immediate coast of SE MA/lower Cape and Islands could see as little as 1-3″ of snow before changing to freezing rain and rain.
Light snow showers will begin to move in Saturday afternoon, with little to no accumulation before 7pm. However, pavement temperatures will be very cold, so any untreated surfaces could become slick.
After 7-8pm the snow intensity will pick up and travel will become more difficult with reduced visibility and slippery roads.
We expect this storm to track very close to Nantucket and the Cape. That track will bring in enough warm air that during the pre-dawn hours of Sunday, a transition to sleet and then freezing rain and rain is expected at the coast and most likely all the way into northern RI by dawn on Sunday.
Lingering lighter rain/freezing rain and/or sleet should taper off by late morning on Sunday with drier, brisk conditions for Sunday afternoon.
Winds in this storm will be from the northeast and peak Saturday night at 20-30mph.