Wave #2 Update

Low pressure should develop off of the Delmarva this evening. This low pressure should begin to intensify as it moves off slowly to the north and then to the ENE..We are already beginning to see signs of this area of low pressure developing as pressure falls are lower off the coast of the Delmarva..
You also notice the low pressure starting to develop when looking at the visible satellite..
I am basing this forecast off the ECM as it has been the most consistent with wave #2. The ECM moves this low rather slowly as its still sitting off the delmarva at 12 Z.. 850s are cold enough N & W of the big cities to support snow...however..the BL temps are going to be an issue. There is a high pressure to the north and a 50/50 low in place. However..one thing we are lacking is a fresh feed of arctic air. Instead we are left with a stale arctic air mass in place.

Now theres a matter of how fast this low can intensify and how much dynamics come into play. Dynamical cooling could take place.. but even the current dewpoints are in the range of 30-40..The lowest of which is in N PA into SNE..where they are 30-35..
So currently, even with anticipating dynamical cooling and temps dropping to there dewpoints we would be looking at temperature range of 30-40. This will not be sufficient for any snow fall as far as accumulating snow , exceptions possibly being over the higher elevations where the temperatures would be lower. As the low passes to the north of the region..it may be able to wrap in some colder air so that any moisture that is left over tomorrow evening..may end as some brief snowshowers.

So I am expecting a primary rain event possibly ending with some flakes of snow.
On the map I did not indicate any snowfall but the above basically discusses the areas that could potentially see some snowfall out of it. Basically its a wait and see situation when it comes to the higher elevations..However...at this point and time even places that seen snow from wave #1 such as state college are currently receiving rainfall...