1-30/2-1-26 Arctic Blast, ULL Snow Event

[GBOVolz]

Just south of it. Maybe 1 mile if that.

Roberts Rd area?


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[Daniel Boone]

47 minutes ago, John1122 said:

It took me from 1 inch to 4 inches.

Most Models continue to show Lee County getting downsloped off Black Mountain or it being a footprint of bad Data being fed into the Models ingest System from the Pennington gap Site or both. About a half inch here on grassy areas now with lt snow falling and 26.7 degrees.

[housemtnTN]

1 minute ago, GBOVolz said:

Roberts Rd area?


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Not too far from there.

[Daniel Boone]

1 hour ago, John1122 said:

The 18z HRRR snowfall output looks almost exactly like the Euro but with a little less in the southern valley around downtown Chattanooga.

Less here than Euro as well. Euro has 6-7 here while it has around 5.

[GBOVolz]

Not too far from there.

My in-laws live in Plainview on the other side of the county line off Corryton Luttrell Rd.


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[John1122]

RGEM remains rock steady with 4+ inches from the Plateau eastward, and 2+ for Chattanooga.

Big run of the ICON and it's fallen close to in line with other models after being far east all day yesterday and the day before.

[John1122]

20z RAP looks like the RGEM.

[Wulfer]

23 minutes ago, Tucker1027 said:

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Tucker, you got one of these for Ga.?   NW. Ga to be exact.

[Tucker1027]

Tucker, you got one of these for Ga.?   NW. Ga to be exact.

I don’t unfortunately. They sent this out to emergency management


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[housemtnTN]

3 minutes ago, GBOVolz said:

My in-laws live in Plainview on the other side of the county line off Corryton Luttrell Rd.


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Oh that's cool, It's beautiful out here.

[Wulfer]

I found it I think.  (Ok, it didn't directly link it.)

 

https://www.weather.gov/ffc/winter

[housemtnTN]

Nice snow shower out here right now. Nickel to quarter size flakes.

[Jeff Co Vol]

Now that the event has begun, most everyone has moved to the OBS thread. 

Link to the OBS thread

[GBOVolz]

Ground already turning white here in Halls


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[Wurbus]

Not sure if anyone called it out, but the SREF plumes increased from 3.3" to 5.4" at TYS from 9am to 3pm

[ShawnEastTN]

Seeing my first flurries near the Roane/Meigs line.

[Silas Lang]

58 minutes ago, GBOVolz said:

Ground already turning white here in Halls


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Same here near Fountain City. Anyone have obs from other parts of town? 

[John1122]

The 18z Euro maintained its 4+ Plateau east, with 2.5 in Chattanooga. 

[Reb]

East Knox getting a coating on vehicles 

[Jed33]

Got between 1/2-3/4in now in grass and on trees the edges of the road are beginning to cave but we’re heavily salted earlier so the road may not fully get covered for awhile.

[nrgjeff]

In contrast to my Obs thread rant.. On the positive side for tonight and tomorrow, the cold core. KCMO area is squeezing out snow showers despite a dearth of multi-level clouds. 

KCMO is not exactly known for upslope, ha! If they can do it, favored areas in Tennessee will do well on Saturday / Sat. night.

[John1122]

Can anyone tell which way the snow is actually moving? I don't have radar scope. But it looks like it's moving SW to NE then NW to SE over my area. Strange looking. According to the HRRR it should start moving NE to SW by 9 or 10. 

[Silas Lang]

2 minutes ago, John1122 said:

Can anyone tell which way the snow is actually moving? I don't have radar scope. But it looks like it's moving SW to NE then NW to SE over my area. Strange looking. According to the HRRR it should start moving NE to SW by 9 or 10. 

I was going to say something about that as well. A little confused which direction this should be coming from. 

[Holston_River_Rambler]

5 minutes ago, John1122 said:

Can anyone tell which way the snow is actually moving? I don't have radar scope. But it looks like it's moving SW to NE then NW to SE over my area. Strange looking. According to the HRRR it should start moving NE to SW by 9 or 10. 

[Vol4Life]

@Holston_River_Rambleris the ULL back towards Arkansas right now?

[Holston_River_Rambler]

12 minutes ago, Vol4Life said:

@Holston_River_Rambleris the ULL back towards Arkansas right now?

The main cold pool is still a ways off:

 

Still quite a bit of dynamics associated with it yet to swing through:

 

The above isn't exactly the same, but is kind of a real time analysis of the vort. maps I and others post (example):

 

 

Noticed a bit of frontogenesis too, on the SPC mesoscale page over East TN:

 

[Holston_River_Rambler]

One other thing that has been interesting to me looking through the SPC meso page, is this ribbon of deep DGZ around the stretched out vorticity:

 

I think there is a 3000' thick DGZ layer back in Kansas. 

EDIT: Oh wow, that's not in feet, it's in meters. So that's almost 10000 feet thick

[John1122]

28 minutes ago, Holston_River_Rambler said:

Thank you. The general radar sites look wonky. 

[Daniel Boone]

20 minutes ago, Holston_River_Rambler said:

One other thing that has been interesting to me looking through the SPC meso page, is this ribbon of deep DGZ around the stretched out vorticity:

 

I think there is a 3000' thick DGZ layer back in Kansas. 

EDIT: Oh wow, that's not in feet, it's in meters. So that's almost 10000 feet thick

Yeah, that and the above you posted leads me to believe there may be a good bit still to come, because that's gonna wrap whatever moisture there is along with what it's carrying. Going to depend where the main area or bands traverse where the large Totals occur obviously.

   The drawback may be Coastal getting organized and rapidly strengthening as the main disturbance is near. That would pull energy into it and lessen amounts as we know.

[Wurbus]

3 hours ago, Wurbus said:

Not sure if anyone called it out, but the SREF plumes increased from 3.3" to 5.4" at TYS from 9am to 3pm

Plumes increased TYS again at 9pm to 6.3" average