That’s not a classic confluence look (as mentioned by Heisy with it ‘trending’ towards it) but notice the tightly spaced isobar lines over New England/off the New England coast? That’s typically a sign of confluence.
In our classic mid Atlantic storms, you’d see those isobars stacked tight together basically running due east off the coast of New England.
It basically helps to lock in / reinforce cold air. It’s why our big MA events feature 50/50 lows that lock in the confluence.
Someone smarter than me can probably explain it better ha.