ORH_wxman

Oceanstwx beat me to it in a more efficient post.

Wetbulb temp is like 31F at ORH and that’s with asos running a bit warm. I typically look at it this way….if there is going to be precip/snow worth really getting excited about, it’s going to wipe out that faux near-ground warm layer pretty quickly. If it can’t wipe it out, you weren’t missing much to begin with. Maybe you get 1-2” of glop instead of 3” of baking soda over 5 hours. But we were going to rip 6” in 5 hours, it’s mostly gonna happen even with the warmer sfc to start. You maybe lose a fraction on the front end, but otherwise dumping 0.15-0.20 per hour in the bucket is gonna wipe out the BL very quickly.

Yeah opposite trend of what the short term mesos have been showing. Guess we’ll see who is right soon.

Child’s play. We had one a few days ago that had like 70 inches over NE Ma. Lol

Even where I am, I’m not expecting warning criteria. But something to watch this afternoon on the trends for late this evening…latest rap is showing the increasing snows in CT/RI as well.

Latest hrrr pounds N CT with warning criteria. Been trending toward bigger rates in that 03z-07z timeframe.

Dewpoints are really what we want to look at. It’s the wetbulb temps that matter not the sfc temps at noontime in March sunshine in an unsaturated column.

Stubborn GFS on that CCB. Still not buying it.

I’m sure someone has the FV3 to post. Prob gives you warning criteria.

Normally I’d like seeing things collapsing SE near the islands but the problem is the midlevel centers get initially too far north so we can’t really crush +SN for 6 hours like we normally might. We’re getting hammered by an easterly 850 flow while we’re dryslotted aloft…maybe midlevels collapse faster as we get closer….but we’d need it to really take advantage. Still thinking 3-4” of crud here mostly from the thump.

The pattern is reminiscent of some Marches that produced huge storms (1958, 1960, 2001, etc). But it doesn’t mean we’ll cash in the same way obviously. We’ve had exceptional March blocking produce nothing too.

Mesos up through rgem.

Trend so far at 12z seems like to try and push the secondary E or even ESE a little quicker once it reaches a position near E LI to islands.

Classic SWFE with the DGZ way up high. If only we actually had some nice low level arctic air then the baking powder would accumulate way easier. This year has been putrid for lowest levels. Even in events where 925 is like -5 or -6, I’ve had several times where it translates to 33F here when probably at least half the time or even more we’d be inverted and even colder at the sfc…not this season though.

Known cold bias on that model.

I’m prob going 3-5” here. Thump has been looking a little better but doubt we get much more beyond that and I’m giving most of the 10 to 1 guidance on the thump a 20-30% haircut.

It’s def because of that. You see the sleet line jump like 60-75 miles in one hour, lol. It’s prob when the DGZ starts to dry out a bit but in reality that will still be snow assuming it is correct thermally.

I def wouldn’t be forecasting much accumulation after the initial thump. If mesos start honking today, maybe we consider it, but I’m going to assume QPF is way overdone in the CCB portion of the system. I might feel ok about it in parts of far S ME or something.

Yea it did. Front end looked a touched better too though very similar. Im still assuming the CCB is mostly a fraud. It will only matter if it’s truly heavy stuff.

Looked a little better to me.

Yeah the vort and dynamics in this one aren’t even close to that ‘05 storm. I’m actually expecting any CCB in this one mostly to be offshore or maybe far northeast areas.

Probably. I still have coverage in my yard but a lot of sun torched areas got melted out.

Nice to see 06z guidance cool a touch. Hoping that we can pull a nice front ender here.

Yeah I’ll be intrigued if euro tries to go CCB…but for now I’m treating it as a GFS mirage. I think it likely mostly slides offshore to our northeast (maybe sideswiped by it in northeast areas into coastal Maine)….but the front end stuff I think is where we could potentially find improvements between now and go time…if only because of the non-hostile layout to our north. Like I told scooter…it’s not amazing like a 12/16/07 setup but it’s enough that some cooler ticks on the front end (even if track doesn’t change much) are certainly possible.

Maybe a slight touch NW…but it actually has better front end snows into central CT than the 12z run did and it trimmed QPF on the northern fringe. Timing was slower too. I feel like outside of the NAM’s noticeable S tick, the rest of guidance so far has been mostly noise whether it went a smidge south (rgem/icon) or a hair north (gfs and GGEM)