Carvers Gap

The interesting thing will be this for the weekend. Now that modeling is downplaying the coastal storm...I wonder if the front itself in the Tenn Valley gets a bit more juice added back?

I think three dimensional modeling(forecasts and not radar) like an MRI is what the next big thing will be. I do fear altering weather patterns will also be a part of that matrix. There are already machines which enhance snowfall in western WY. I hope we never reach a time where we know the weather to the point that there are no surprises.

Whew! The new washing machine is installed and operational. Hopefully, no more laundromats for a bit! Though, I am jealous of the speed that a person can do laundry in those places. We washed and dried 6 loads in one hour! I know - Dear Facebook. Modeling continues to honk at very cold weather between the d8-12 mark. Sometimes modeling has overdone the cold at this range. But for now, some really cold temps on the 12z Euro and GEM as Jeff mentioned. Both of those models have identified cold snaps pretty well this season. For now, the day8-10 window looks good for a winter event, but you all know the rules...roughly between the 24th-27th. I do think one flaw that we need to be watchful for...cold has been oversold on modeling all winter OR completely missed. Usually the solution is a cold front, but is modified from the original version. Probably the case this time, but...every once in a while strong cold fronts are under-modeled! The TPV getting trapped looks legit. We need a wave to ride the Arctic front if that front verifies. That is the big ticket! Great discussion. I have enjoyed reading it.

If you get a timeshare on 30A, better make sure it comes with a snow shovel.

I probably won't roll back in here until 12z. I might catch the 0z GFS run....if I am feeling remarkably good. Haha.

I still think it is a very long shot. However, where we are seeing some of these systems rain instead of snow...tells me that modeling is over doing the cold and there is room for this to come north. However, these Gulf snows verify more often than I care to enjoy.

Yes, the mean is well west and into the E TN valley. No idea if it can get this far, but you can see the jog. You asked if this could jog northwest. I do believe the trough could verify north of where it is show currently. If so, this shifts the track.

18z GEFS left. 12z right.

Sure looks to me like the 18z GEFS ensemble members ticked NW.

Let's hope no data collection is done through the Verizon path. I doubt it, but certainly if models go haywire....we know.

The low in the Lakes is the problem. It was behind the system so not sure if it sped up?

12z RGEM was also def a bit warm…looked a bit over cooked.

Got a low parked over the Great Lakes…tearing up thermals. Bet this is still a pretty cold system. Might need that coastal.

Is Rufus RGEM?

Yeah, it probably is not getting sampled well if it is at the NP. Once it arrives on the continent, we might see a jump one way or the other. Need ground obs and plane obs.

Bitterly cold run of the 12z Euro.

Yeah, I think that run is off its rocker. There has been a trend over the past couple of deterministic suites to de-amplify d10-15, but ensembles are not biting yet. The 12z GEM is very cold. I do think the GFS is pretty good inside of d5. It has been wack-a-mole after that. A quick glance of the MJO has it heading into phase 8 between Jan26-30th depending on your model of choice. I would expect the eastern trough to go gangbusters around that time and into early Feb. Again, huge grains of salt. The MJO has not been well correlated to eastern NA weather so far this winter IMHO.

It is entirely possible that the Sunday system is just getting sampled better. But...I bet the Euro is the likely solution. The GFS has been on steroids this winter for some reason at times. Let's see where this Euro run goes...I am gonna bet it is west of its 6z run but not by a lot. If that storm actually cranks, it is gonna be frigid here.

The 12z GFS is a wild run...completely different than 6z. Flips the 500 pattern over Alaska after d7. The GEM is steadier. This may have to get settled by the ensembles. @Holston_River_RamblerI was surprised to see some solutions over E TN on the GEFS.

I really like the 20th for a northern stream system for some reason. Nice, deep trough and maybe the coldest air of the season so far.

The 12z GEM at 171 looks impressive at 500 in regards to cold air delivery.

I strongly suspect this is an EC storm. Unfortunately for all of us...may be just too far to the east. We keep getting a dang low in the Lakes. Haha.

The 12z GEM is OTS w/ barely a skiff in NC. We need to dig through that GFS run, and see if it is doing something weird. That said, the 6z Euro has the GFS solution, but it is east of the 12z GFS track.

Yes. Jog west, calibrate east, jog slightly west again. That is normally what I observe. I don't know how much room this has to come west since it is so late. There is not a lot of room. I think really our best chance is that modeling is under estimating the storm, and it gets deeper w/ each run. If it is a legit Nor'Easter, it may not have it deep enough yet. For now, looks like a Carolina special...but that could change.

The ever lovin' truth w/ the GFS.