Interaction between the polar and subtropical jets have started, now we just need to wait until the precipitation fills in. Areas up north in PA, NY, CT and MA already have snow falling. This is associated with the polar jet plunging south.
Light snow showers will overspread the area this afternoon. Snow showers will be sparse at first but will fill in and intensify towards evening. Late evening and overnight snow will really pick up. Winds will also start cranking in response to a rapidly developing low pressure along the easy coast. Temperatures will also plummet to single digits in the north and the teens throughout the rest of the state and even to the coast!
Winds will be whipping the snow around and substantial drifting will occur. In addition, with cold temperatures (highs tomorrow in the low teens) salt will not have the same effect on the roads. It will be a lot harder to have the melting power in the colder temps.
Generally, I am looking for 2-4" across extreme SNJ, N DE and NE MD. 4-8" across much of CNJ including the Philly to Trenton area. I also like 6-10" across NNJ into the NYC area. Areas in CT 8-12"
The real wildcard here will be where some of the intense snow bands set up. Weather models have been showing them along the NJ coast (Ocean and Monmouth Counties) and over Long Island. They can set up anywhere, and getting stuck under them can raise snow amounts 2-4"
In any case, be safe and stay alert for warnings. I will be updating throughout the day!
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