1 Down, 1 To Go
Posted by Chris Lambert
First thing first... any leftover precip transitions over to snow this evening, and with temperatures dropping to and below freezing, icy spots on the roadway are a good possibility on untreated surfaces. Driveways and sidewalks fall in that category as well. There won't be a lot of snow, but an extra coating is enough to give us some travel woes, especially outside 128. Also if you live where snow turned to a sponge and soaked up sleet and rain this afternoon... that slop freezes solid tonight. Winds are still strong this evening, gusting 40-50mph along the North Shore until 9:00PM. For the rest of us, gusts are around 25-35mph linger through the night.
We'll take a bit of a breather tomorrow with sunshine and temps in the lower to middle 30s.
Then our attention turns to another storm. This one won't be as powerful in terms of sheer strength with wind, flooding rains and a foot of snow inland, but it will produce a blanket of white across the area. Yes, I think this is a snow event for all (Cape/Islands close call).
We'll track two separate systems across the country the next two days. Energy from the northern branch of the jet stream, and a developing storm along the southern branch. To get huge New England snowstorms... we need the two branches of the jet stream to merge and explode a storm south of us, and track just SE of Nantucket.
So here comes the tricky part... the two branches do merge or "phase" but it looks like it's just late enough in the storms' progressive (too far east) for us to avoid a blockbuster. However, the track of the low is in a good placement so even before the storm bombs out, snow moves in, and with the storm strengthening as it pulls away, whatever snow is left across SE Mass gets enhanced do to the strengthening low. Overall I'm expecting a 2-4" event with 4-6" across SE Mass. If the storm takes longer to strengthen, these numbers go down, if it's a more rapid intensification process, these numbers will go up. Challenging to say the least.
Snow will start around midday Saturday and taper off Saturday night.
Anyway, ski country did fantastic with this last round, and with fresh blasts of Canadian air dropping into New England, that snow isn't going anywhere.