12z GFS soundings for JFK are wonky. Low levels are saturated but it's dry at 800mb? With fresh CAA from N winds this type of sounding is unlikely for JFK. Maybe part of the GFS "snow" output for NYC is explained by the model falsely portraying saturation from ground to ~925mb? pic.twitter.com/ghWvlKnrAX

— Erik Pindrock (@E_Pinny) January 2, 2022