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Massive Nor'easter Disco 10/21-25


Damage In Tolland

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It's been obvious for days now that Maine would get qpf max. Models today are hinting at a secondary max right over eastern mass now, definitely enhanced by some instability involved. 0z GFS is on board for that. GFS and NAM both have spot 3" or 4" somewhere e mass. An interesting blob of convection or a firehose of some type spiraling up to the area from south of sne seems to be a feature showing up on multiple models. You can see it well on the NAM and even rgem.

 

Rockport, Plum Island, Salisbury Beach would be fun areas to be.

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To be fair, the GFS/NAM/ECMWF all show two areas of potentially very heavy rainfall, one just north of Boston and the other somewhere south of NYC. Whomever gets under those bands could see some 1"+ per hour rates in heavy convection. Seeing the Euro spit out 5-6" totals when that model is historically on the drier side raises a red flag.

 

You raise a valid point there. It's a historically conservative model with QPF (hence the better verification scores). When it starts chucking run after run it's time to take notice, a la February 2013.

 

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Some signs of CF enhancement possibly in this storm, although it's so wrapped up. it probably is more like a back bent type warm front. Still, you can see it in the QPF fields. 

 

Weenie graphic for the visual learners out there.

 

post-44-0-35204300-1413952587_thumb.png

 

You can see the warm air aloft in the theta-e profile, but like you say rather than a traditional TROWAL (trough of warm air aloft) this warmth extends to the surface making a bent back warm front. You can also see the coastal front enhancement as a result.

 

That should help rain pound for a period.

 

Edit: Xsect cut from BML to FMH

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