IF we can reduce that IVT just a shade more, I feel like we'll get a non-inear response to the snow in areas right on the edge....we're talking about 1C or so for many areas around 495 and down into N CT near Kevin.
16z RAP was the first run that trended a bit colder at 925....still warmer than most guidance given the trend of the past several runs...it will take several more colder trends to reverse the warmer ones from earlier this morning. But we'll see if it can cool a bit because that makes a huge difference over the elevated interior overnight tonight.
Hopefully it's playing into its overamped bias beyond 9 hours. But I've noticed the trend on every HRRR/RAP run is to be stronger with the IVT low and flood more and more BL warmth into SNE. That will quickly end any top end snowfall forecasts if that trend is real.
Lol, 3k NAM went insane over eastern areas tomorrow....I think there's a bit of chasing with that sfc low position....clearly the best dynamics are well southwest of it.
It was obvious early on that it was going to get its act together a bit earlier....which is what helps with all the conveyors maturing quicker and giving a monster CCB to a lot of SNE.
Low isn’t escaping east as much on 06z NAM so it really goes to town tomorrow. Full blown blizzard for eastern areas. Def gets further west much better too than the 00z run.
Guidance is trending colder for the commahead/CCB over E MA on Tuesday. Esp the mesos…GFS not as much but it still slays anyway.
But this becomes a bit different if we go 29-31F over the CP on Tuesday with 50mph winds. That would up the impact quite a bit.
He almost did Lancaster/Whitefield NH too and those are downslope hellscapes for snow weenies too (but they do get epic frigid in winter).
Anyways, hoping for better trends at 00z with the CCB.