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March 2- 4 Snowstorm Potential


NEG NAO

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Euro starts out warm and then temps fall as the boundary layer collapses.

 

Hr 114 light rain moves in

Hr 120 light to mod precip. 850mb 0 line is running through nyc and LI with temps in the low 30s ..upper 20s in NWNJ

hr 126. Light snow..Surface below freezing for all and 850mb temps below freezing for anyone north of TTN

Hr 132 light snow with temps in the mid 20s except the NJ shore is 30-31

hr 138 heavy snow nw of i95 mod snow nyc..Light snow s and e of there..NJ shore is sleet probably

hr 144 heavy snow for all. 1002 mb low 100+ miles east of Delaware

hr 150 light snow for all. Temps in the teens

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There will be an axis of heavy snow, where does it eventually set up? 50 miles either way means a difference between 1' and 1".

Of course, but this axis of 12"+ is the entire state of PA into Southern NY. 

 

PA alone is 180 miles from N to S and it is well into NY --- so the axis is huge, quite frankly. 

 

There will also be that cutoff where someone gets fringed...

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The coastal after the WAA snows is a huge wildcard right now. If it can really get going then we could easily see a lot more snow than currently depicted.

Of course there's still plenty of things that can go wrong but the PV looks good, the extent of the cold is impressive, and there's no big phased system which is exactly what we want.

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