The NAM (and even euro) has been rather aggressive with the potential for strong-to-severe t'storms Wednesday. This doesn't appear to be a widespread severe weather setup, however, there could be some locally significant severe weather with damaging winds with the potential for a tornado. The NAM has been extremely aggressive with a backed llvl flow with ample wind shear. While mlvl lapse rates are poor, dewpoints perhaps tickling the mid 70's will result in low LCL's and ample 0-3km CAPE (perhaps in excess of 150 J/KG).
The warm front looks pretty impressive as well; characterized by a strong theta-e gradient (enhanced by daytime heating...despite extensive cloud cover) and rather high PWAT values. Storm motion also looks to be parallel (or close to it) to the warm front which will result in locally enhanced SRH values.
Any updraft which can become mature enough will have numerous ingredients to become severe posing a risk for damaging winds and perhaps a tornado. Best potential looks to be south of the MA Pike.