That said, GFS does produce a bit of a leading low that cold tucks the lower levels. Even supports snow for N MA/S NH. But there could be a band of sleet and ZR south of there if that verifies.
The perfectly timed northern stream impulse to replace a building in high pressure with a clipper low perfectly encapsulates the last 2-3 winters…I remember posting an EPS mean in here a few days ago that showed a very nice high pressure building in just ahead of the low which was a strong signal for a cold/snow ptype shift….then it immediately gets taken away by this new northern stream impulse.
That is pretty close to a 3-6” snowfall on Euro for pike on Friday night…just a fraction too warm. Pretty decent for S NH and down into Ray’s hood and Rt 2 area though.
18z euro numbers on QPF. If snow growth is decent could be some 2-3” numbers…best chance up near NH border but decent coverage of 1”+ maybe. Could be a good burst just before sunrise Wednesday morning.
WINDEX numbers Wednesday late PM/ early evening are pretty impressive. The only thing we're missing for a huge event is the lift is a little so-so.....but everything else is really good. You have very steep lapse rates up to 600mb and plenty of low level moisture to work with. Hopefully the arctic front is consolidate enough to produce good lift.
Yeah this one looks dead unless we see wholesale changes to the leading low. Little clipper in Canada screws us which is too bad. We still get the cold press but we’d need the southern stream to slow down to make it good.
Though there could be another one right behind it that might be worth tracking.
Yep…never bought the 12z run but I’ll gladly take a refresher couple inches Wednesday morning and run. I just hope it doesn’t slip north and whiff us or near-whiff. But it aligns decently with euro now.
GFs had 8-12” several runs in a row around D3 but euro never bit except the one rogue 12z run (maybe 1.5 runs if you include that 06z run for eastern areas)…but yeah, if you were drinking GFS kool-aid while euro was not biting, then that’s on you.
We’ll see how it trends today but it was a hard trend colder overnight. Even the 06z EPS was noticeably colder than the 00z EPS which had already trended colder with a CAD look.
06z EPS only goes to 144 but you can see how cold that look is right now with the low up in the maritimes and a scooter high building in as the low is in the Ohio valley…with potential for some weaker ripples of low already south of us by that point
Those types of systems typically only have a narrow area of ice and usually it’s not stationary enough to give big amounts. Once in a while you might get a narrow band of warning ice but it’s pretty rare.
My guess is the frozen precip will be dominated by snow and sleet.
PDII the storm itself was kind of pedestrian in terms of rates. It was basically like 1” per hour for 15 hours and then another couple inches each side of it. As far as 20” storms are concerned, def somewhat “boring”
But the modeling aspect of it was quite exciting. It just kept inching north every run from like 4-5 days out. It was a clean whiff on a lot of guidance at D4 and then just a slow creep north. GFS was last to the party as usual back then. Took until really close for it to hammer SNE.