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Everything posted by Holston_River_Rambler
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February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
Euro Control and ensemble members for le thump: -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
Still interested to see what happens with the trailing bits of energy as the system(s) evolve over the next couple of days: -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
evolution of the Euro -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
12z Euro maintains its thumpage: -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
Yeah this is the first time I've had access to soundings from some of these models and the differences between what the precip type says, what the precip type shows on the model output, and what the sounding looks like seem a little wonky. -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
12z Ukie: -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
Look how close the above sounding is to an all snow sounding, from over my head: -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
Here's how the RAP sees the precip types: Here's what it sees as the sounding around Chatt at 2 AM Thursday: It says rain, but shows mix and it is sooooo close with that forcing to being all snow. -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
I wish Jack Sillin was doing what he did for that storm a few days ago, where he used RAOB data to analyze model output. That was helpful. Would be nice to see how what's left of the TPV is acting like a pseudo 50/50 low and causing confluence over NE, vs how models are seeing it. NAM seems to be playing catch up with that feature, but being the warmest model, it could still be right with eventual evolution, even if how it sees us getting there is wrong, lol. -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
12z para GFS: 12z National Blend of Models to offset the above: -
2/14- 2/16 Winter Storm and Arctic Cold
Holston_River_Rambler replied to WestTennWX's topic in Tennessee Valley
Check out the lee side convergence west of the Frozen Head mts: -
2/14- 2/16 Winter Storm and Arctic Cold
Holston_River_Rambler replied to WestTennWX's topic in Tennessee Valley
I think we've just had so much low level moisture hanging around the past few days, that the true arctic air, now that it is being allowed to sweep in after yesterdays storm, is wringing it out. -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
It does blast the warmth in after that though. Yet the sounding over IMBY looks kinda snowy, even though it says sleet. Full saturation in the DGZ, very shallow warm nose that all that forcing and rates might mitigate. At least a sleet/snow mix I would say on this NAM run, anyway: circled area is the sounding: -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
NAM coming in south again (last 4 runs): -
2/14- 2/16 Winter Storm and Arctic Cold
Holston_River_Rambler replied to WestTennWX's topic in Tennessee Valley
Solid dusting now: -
2/14- 2/16 Winter Storm and Arctic Cold
Holston_River_Rambler replied to WestTennWX's topic in Tennessee Valley
Yeah same here. As always, not as favored for upslope as you, but I woke up at 3 AM to let yoda dog out (see storm thread for Thursday, lol) and it was snowing nicely. Some picturesque pixie dust right now, with lowered visibilities. -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
Until the 12z suite comes, I shall believe yoda dog: -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
6z Euro precip: 0z Euro precip I'm honestly kind of afraid to try to look much more in depth with this (like 850/ 700mb lows, vorts, etc..), with how many changes still happened at go time with the last system. -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
It'll be interesting to see if the NAM comes around more at 12z. The SREF NMB members are getting more interested now, at the 9z run, but the ARW members still don't want anything to do with it. -
February 17-18th Winter Storm Thread.
Holston_River_Rambler replied to John1122's topic in Tennessee Valley
While the NAM is still looking rainy, it has trended more "thumpy" over the past 5 runs:
