The double barrel may or may not be accurate here. It may be a nowcast situation with that. But of course we’d want as little of that as possible so the low can consolidate west.
Yep. The one concern may be the dry slot getting close to eastern areas/the forks of the west trend continues. But mostly it’ll be about subsidence and heavy snow with the bands. There’ll be lucky and unlucky people as always.
Wow at the Euro. Continues to tick slightly better evolution aloft. Looks very close to the Nam last night (not the probably overdone 6z). That would suggest 18” amounts are possible even in Nassau County and 12” to Manhattan.
RAP at 9z which goes out to 51 hours was nuts as well, similar to the NAM but 30 miles east with the heavy snow. For what that's worth-probably not much since it's a short range model. Hi-res RGEM got a little weaker/further east from last run. Models may still be having issues with the possible double barreled low and working with convection (doesn't mean it isn't real or hallucination).
Maybe. Some time still for minor trends but the NAM is so ridiculously more developed with the 500mb low and how far west it pushes everything that it doesn't seem feasible. I wouldn't trust it until other models get on board. I could see the Euro doing another 25 mile shift or something but not to that.
That NAM is nice to look at but it's known to do these wacky things. RGEM actually looks a little weaker/SE with the precip at 6z but looks impressive aloft. That NAM run is an absolute thing of beauty though, good lord.
NYC area/SW CT will do just fine with this. For 3-4 days it's been on the wall that this would be an eastern New England focused storm. A foot maybe in NYC is nothing to sneeze at. And there are often surprises on the western QPF gradient.
30" will definitely happen somewhere, maybe a small swath from central/eastern Suffolk into CT and MA.
I still think the best of the event will be around the Boston area down through eastern CT/central and east Suffolk but it will be very impressive to just over the Hudson. The one NAM run can't be taken lock stock and barrel when Euro essentially is an 18z carbon copy. Actually the model that may support the furthest west outcome in terms of banding may be the GFS tonight.
I don't have access to 18z free maps but comparing to 12z the Euro definitely looked a little better. Nice more compact closed low that we could still use closing off a couple hours earlier but two closed contours E of Montauk. 700mb also looks better to me, less sloppy.
Who knows what'll happen. I'm sure there will be some kind of surprise with this. Often the west edge of the heavy QPF has a heavy deformation band. If I get 12-15" I'll be beyond happy.
I would be too if I was you (I'm looking forward to it also but my odds are still a little less than yours IMO). You have a really good chance at seeing 20".
GFS also should have shown considerably more than it did given how it has 2 closed 500mb low contours SE of Long Island. I think that would be a foot easy from NYC east.
I think the whole Island should be good for 12+. NYC is on the bubble, I'd say 8-12" there-8" Bronx 12" Rockaway. Still need another west push.
Or over Sayreville, NJ like for Boxing Day 2010 lol. I'd still say the best chance for it is central/eastern Suffolk County but there'll be plenty of heavy snow west of it.
Looks good, similar to what it seemed to have at 18z. 1" liquid starting around NYC maybe, no huge death band shown though unlike the NAM/Euro it seems. Similar to RGEM which shows a larger 12" or so area rather than the death band 30" stuff.