A clipper system that will impact our region this afternoon into this evening is now located from Washington D.C. northward through Harrisburg. This system will continue to slowly move eastward today and move offshore tonight.
The computer models continue to indicate 0.01” to 0.10” of available liquid with this system with the higher end of that number towards our south. The recent radar trends of the system appear to show some filling in of the precipitation, so I do not see this falling apart. In fact, this could get a bit more potent as a bit of energy goes into the system. As it approaches the ocean, it may try to pull in some additional moisture...but the dynamics appear weak and the time to do this is very limited. It is interesting how well this system survived crossing the Appalachian Mountains.
Some areas may just pick up a dusting, but I continue to expect amounts of a coating to an inch in some places. Some amounts in excess of an inch could occur in Southern New Jersey. Temperatures are below freezing in most places and they may rise to around freezing. Atlantic and Cape May Counties are the only places where temperatures are above freezing. But should the intensity be heavy enough, evaporative cooling may make up for the lack of below freezing air at the surface.
The system will impact the region stating around noon and linger to about 5:00 or 6:00 tonight. This system is unfortunately timed for the afternoon into the evening commute.
This snowfall is not much, but the previous events this year with this nuisance snowfall have caused major headaches. One inch or less of snow will not keep people off the roadways and that is how we get more accidents and jams during these types of events. Since these coatings may not be uniform, I will put out a graphic highlighting the potential for periods of snow.
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