A very difficult time period to be forecasting. Low pressure is currently over Western Kentucky. This low should head into Ohio. Meanwhile a secondary will form over the southeast and should track off the delmarva and then continue to move NE but will only move so far and then essentially get blocked with the blocking that is in place.
The air mass that is in place is modified polar air and has become quite stale. With areas still under clear skies for the most part..temperatures should be able to radiate and then once the clouds move in the thinking is that they will climb slowly into the 30s. There should be enough cold air at the surface to allow places to receive a wintry mix..especially later on in the evening and over night hours where temperatures will be at there coldest at the surface. There is the potential in that zone for up to .10 ice. This applies to the mix zone in PA and NJ only, Further to the north it should be primarily cold enough for snow from NE PA and Northwards.
A very complicated system with bust potential quite high!
No comments:
Post a Comment