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Central PA - Winter 2020/2021


MAG5035
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GFS barrels the primary 850mb low into PA creating enough of a southern push for the P-type issues before it reforms over the coastal and changes p-types back to snow. Nit picking where the random L's get plopped over the general surface low pressure area stalling off the coast aside, the placement of the precip shield is okay. And it's a long duration event like everything else has. The issue is thermals, and how it tracks the 850mb low... and looking back and comparing the whole last model cycle it's been really consistent with that. Suppose one could argue it thermally may be too warm if the deform precip has heavier consistent rates since 850/925 temps are somewhat marginal.

But yea, GFS still in it's camp. The Euro has been arcing that 850mb low under us before it gets to PA and then reforming while the Canadian just barely gets it under us. Something's gonna give with this eventually. 

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2 minutes ago, MAG5035 said:

GFS barrels the primary 850mb low into PA creating enough of a southern push for the P-type issues before it reforms over the coastal and changes p-types back to snow. Nit picking where the random L's get plopped over the general surface low pressure area stalling off the coast aside, the placement of the precip shield is okay. And it's a long duration event like everything else has. The issue is thermals, and how it tracks the 850mb low... and looking back and comparing the whole last model cycle it's been really consistent with that. Suppose one could argue it thermally may be too warm if the deform precip has heavier consistent rates since 850/925 temps are somewhat marginal.

But yea, GFS still in it's camp. The Euro has been arcing that 850mb low under us before it gets to PA and then reforming while the Canadian just barely gets it under us. Something's gonna give with this eventually. 

CMC remains strong. 

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