November 17th Weather Discussion

November 17th Weather Discussion

Today is going to be a rather interesting weather day and one that I am not completely 100% accurate on how its going to turn out yet. Lets talk about temperatures first because that seems to be an easier part of the forecast for today.
Along the Southern New England coastline and down into NJ and into Eastern Pa temperatures are going to be in the upper 30s to the lower 40s. This is some 10 degrees below normal. Interior regions of PA should also top out in the lower 40s. These are the Max temps that i expect and they may actually fall short. Further West into Western PA temperatures will be in the low to mid 30s. Interior NY will also only make it into the mid 30s. Below the PA/MD border-upper 40s to mid 50s down in the Norfolk area. Mountains of VA, WVA, mid to upper 20s.

Now the temperatures are out of the way this brings us to the weather for the day into the evening. A S/W is currently located over Indiana. This shortwave should continue to move off to the south and the east. The question is does this energy actually cause greater instability then being forecasted? Does this energy possibly create a weak coastal low off the coast around the Delmarva? This is what I do not have the answer to at this point and time.
Nevertheless the region should experience snowshowers from this clipper. Across eastern PA into NJ by late afternoon, early evening and approaching NYC around or shortly after midnight. I am going to try and update this first thing upon awaking before I have to go to work. There are some questions that still need to be answered in regards to the next 24-48 hours.