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February 2-3rd 2013 Clipper/Redeveloper


USCAPEWEATHERAF

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I think NAM is off with its surface features compared to trough positioning with the lead and secondary shortwave impulses.  Phase happens sooner and much closer to the coastline.  Low gets tugged closer to the coast underneath troughing rather then out in the convection.  Convective feedback issues rule the romp today.  Cape Cod, MA manages 1-2" of snow on the NAM as comma head skirts off the coast and low bombs out too far east.

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I would side with the NWS for now with 2-4" but with a chance for higher amounts.  I say this in light of the latest NAM.  If the GFS ensemble members weren't in fairly decent agreement with its operational run then I would say GFS is on its own and can be discontinued, but since the GFS and its individual members agree on more QPF for the area then I say there is a lot more credence to the GFS.  EURO was a lot closer to the coastline with the surface low as well, just not as deep as the GFS, NAM went very deep very fast with the surface low, but too far east.  Longitude over latitude debate.

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