A strong cold front is set to move across New England late Monday. Combination of surface temperatures into the upper 70's to lower 80's and dewpoints into the lower 60's will yield modest levels of instability (MLCAPE ~1000 J/KG) with poor lapse rates limiting further instability. Aloft, a strong shortwave trough rotates across the region resulting in ample wind shear with 700mb winds approaching 40 knots and 500mb winds approaching 60 knots.
As the cold front encounters the warm and humid airmass, a line of rain and thunderstorms will likely form across NY/PA and propagate southeast into New England. Strong shear will help aid in convection organized. While instability will wane with southeastward extent due to marine flow, strong dynamics aloft may help compensate and allow for the line to continue progressing towards the coast, albeit weakening.
Given modest CAPE and strong wind shear there will be localized threat for damaging wind gusts.
By no means a BIG severe threat but something to be excited over, especially knowing the REAL stuff isn't far away.