The GOES SRSO imagery from 1848-2015 UTC shows the influence of the cool onshore flow with marine stratus holding on the southeast coast of New England from Groton, CT (KGON) to Providence, RI (KPVD) to Marshfield, MA.  Just to the north of that region the smooth texture of the marine stratus changes to rolls/streets showing us where it might be possible to convection to develop. MrSnow/inthecards