Parameters are in place for an outbreak of snow showers and snow squalls on Cape Cod, early Thanksgiving through Friday afternoon of this upcoming holiday week.  GFS forecasts -20C 850mb temps, coupled with +10C of ocean water temperatures equals a very unstable atmospheric profile, I will have to watch this potential closely as it is still about five days away.  But the potential exists at least for festive flurries on Thanksgiving day.  Stay tuned!