Good news is the EPS has been manhandling the GEFS for the early December period. GEFS has been caving to EPS when it gets to like D10-11-12. Hopefully that continues because EPS looks really good. Even popping western ridging week 2 where a more substantial system could develop in that look.
All of these H5 looks (not including the NAM which goes crazy deep and consolidated) are trending toward this partial phase with northern stream and the vort gets sheared and attenuates…this is turning this system pretty ugly from an organization standpoint. I’d like to see a trend back toward keeping the southern vort a little more independent longer at 00z tonight but I’m becoming skeptical we will see that.
They are gonna be really bad near the isothermal mix line. But I think they will be fine over the interior and comfortably north of the 0C 925-850 zone.
It’s prob gonna be a compromise lime usual. But evena compromise isn’t that great because the trend has been to keep the midlevels kind of open. So it’s gonna be weaker with dynamics and QPF.
12z euro looks more phased so I’m thinking we’re gonna get the big WAA push ahead of it instead of turning things to the east quicker. If that trend continues, it probably turns into a mostly non-event for SNE.
Euro is keeping that southern vort independent of the northern stream for quite a bit longer. These more amped models are trying to phase earlier so you get a big WAA surge out ahead of it.
GGEM was even slower than the GFS to turn the low and midlevels out of the east. And it’s because of how it handles the vort. It keeps a strong vort tracking through western NY. You aren’t getting big snowstorms for a good chunk of New England like that.
That was a trend better for SNE than previous runs. Still warmish but it at least holds snow for longer…gives you maybe advisory snows instead of a quick coating.
It’s not developing the 850-925 lows as quickly as those colder looks. It just keeps everything ripping out of the south.
At 78h, it has a closed 925 low off Delmarva but it’s due south winds here. Zero turning of the winds early on. Euro has a closed low off Delmarva at 925 with winds almost out of due east.
That’s what it did in BOS. It had like -1C to -2C at 925 there. I agree this is a massively heavy lift for BOS but that’s how it would have to go. 00z euro rates and temp profile
We had this a few times last year…models becoming more divergent inside of 4 days. Seeing the euro go so flat at 06z to almost whiffing and then seeing monster amped solutions at the same time from other guidance….
Here’s the meat of the storm with the real rates on the 00z euro….paste zone is prob more like SE MA to interior SE CT on that look…interior MA to interior N CT is prob a degree or two cold enough to not be too pasty
The thing is, if you amped the euro solution from 00z just a bit more, then you and me would prob see a lot more paste, Kevin since we’d be closer to 0C from like 900mb to surface. But if it’s more like -2C then it’s gonna be more powdery.