Just under 24 hours removed from many near 60° in Southern New England, a widespread 1-5” of snow fell on our area Wednesday am , not a huge deal for us hardy folks, but the timing was a nightmare for morning travelers. All got in on the action except for Cape Cod where once again the mild Atlantic ocean trumped any wildcards that may have existed . They may be next though, it’s a process this season to get that water cooler but cold weather ahead will help for sure. We are watching a third and final wave of Low Pressure riding along the boundary which has now pushed a bit farther to the east today. This low is likely to stay far enough off to the south and east to spare most of the area from seeing anything, though just enough moisture may get thrown up into the South Shore of Massachusetts and the Cape and the Islands especially to cover the ground in white. Lower chance of this extending back into Rhode Island and even a lover probability for any portions of Connecticut . What will have to be watched and is having a tough time being picked up by our computer guidance is a light NE wind which may bring snow showers to east coastal Ma. perhaps as far north as Cape Ann .
This is for late Thursday and early Friday as that looks to scoot on by due to lack of blocking. Quick mover again. Other forecasting issues with this system is whether it tries to phase with new incoming northern jet or if the incoming cold air just too heavy and will surpress the storm ?. That usually is the case and will go with it. Even with exploding storm well to our south and east enough gradient will be in place to create precipitation.
Beyond that , we got a fairly nice day setting up for Saturday and most Sunday, though winds will pick up late Sunday and especially Monday (timing still in question a bit) as temps will crash ahead of the Arctic front plowing in from Canada forced down via Polar Vortex with snow shower and squalls ahead. The heart of the coldest air of the season can now almost be confidently pinned down to arrive Monday through most of next week. High temperatures look to struggle to get out of the 20’s with nighttime lows in the single digits and teens at best !
There are a couple disturbances next week that bear watching as clipper systems (Alberta) will comes across the Great lakes and with potential NAO slightly negative, these things can explode once they even touch The Atlantic Ocean. Winter is back! ~Anthony. Check out the UPDATED extended forecast graphic for Fri-Tues
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