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March 12-13 Winter Storm Observations Thread


powderfreak

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There's a bit of a disconnect of individual event components with this system.  

 

It would do what it is doing, without the undercutting arctic air mass.  This current HPC surface synopsis clearly shows this front is not actually part of the low pressure's frontal tapestry: 

 

90fwbg.gif

 

More over, am seeing temperatures crash pretty fast in eastern NY/central VT where this boundary has succeeded. I suspect that this could get dicey, perhaps dicier than some think in N MA and S NH later on... Would be a sleet and icing issue.  ALB is over to ZR and there is no turning back once this boundary undercuts.  

 

This is going to be a now-cast nightmare along that interface ...particularly in the 06z-9z period, tomorrow. 

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Visibility just dropped to 1/4 mile in AUG. GYX report of 4.9" in Bridgton - they and IZG probably headed toward 20".

 

It will be interesting to see if IZG hangs onto to all snow...the RAP has the pinger line just about getting to them and staying on the doorstep for like 5 hours and then collapsing back SE.

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Don't recall many events where even the Lakes region is partially screwed yet Conway/Fryeburg get pounded. It still may mix there, but it does not happen often at all.

 

Heh, their about to collapse S with that ...give it 2 hours tops..

 

CF into NW mass fwiw -

 

90fwbg.gif

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It's going to take a little while to get that low level cold over here through the high terrain. We'll need to see HIE and then LEB dropping down the CT River Valley first. Looks like it's through the northern half of Coos with low 20s up around Pittsburg and 31F at BML/HIE.

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It's going to take a little while to get that low level cold over here through the high terrain. We'll need to see HIE and then LEB dropping down the CT River Valley first. Looks like it's through the northern half of Coos with low 20s up around Pittsburg and 31F at BML/HIE.

Oozing through the valleys, but it should make a push after that time..perhaps 6 or 7 or so it starts more in earnest.

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