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The 18z Model Snow Maps Just for Fun

The GFS seems to be consistent with this storm in regards to snow amounts while the ECMWF is moving around with the snow. Below is the GFS trend map showing the last 6 runs of the model. Also below are the other models showing the snowfall for the Midwest and Northeast. I think the Midwest is in good shape in regards to my snow map. The Mid-Atlantic remains the one location that needs to be looked at closely Saturday morning because of the differing solutions between the models. I still think the storm will be closer to the coast I don’t want to make any major changes just yet.

Various Snowfall Maps for the Major Winter Storm. Winter Storm Index 4!

A complicated major winter storm will hit areas from the Midwest, Ohio Valley, into the Mid-Atlantic and Northeast. Snow will begin the Midwest Saturday and spread into the Ohio Valley. We should see a band of 4-12 inches of snow developing in the Ohio Valley along the warm front where the low level jet will occur. That area of snow will move into Pennsylvania and Virginia Sunday. As the upper level low pivots and secondary development of the surface low occurs off the Mid-Atlantic coast, heavier snows will hit areas of Maryland, Pennsylvania into northern NJ. ECMWF has the heavy snow going into Philly, but that will be based on if the storm hits the benchmark for the I-95 corridor which looks possible. Once the storm develops, it will move northeast spreading the heavy band of snow up the New England coast. Lots of things can change and as you can seen, while the area of snow seems to be a consensus, the amounts do not. Also, the wintry mix area in Virginia needs to be taken into account as well.