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John1122

12/10-11/19 Potential Valley Wide Snow Event.

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Snow beginning to stick, things have fully transitioned over to moderate snowfall with a current temperature of 33. And echoing Dan, in light of recent events I'd say this warrants a WWA at least for SWVA and the plateau.

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That heavy band that is running up the plateau seems to be breaking up to the south if it gets into Knoxville it will be by the skin of our teeth. Right now we have had enough snow to whiten the roof tops that is it.

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That heavy band that is running up the plateau seems to be breaking up to the south if it gets into Knoxville it will be by the skin of our teeth. Right now we have had enough snow to whiten the roof tops that is it.


That heavy stuff in Alabama should pass over the valley. Looped the radar and that’s pretty much where the snow Knoxville has picked up originated from.


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1 minute ago, PowellVolz said:

topped now but hopefully it fills back in. Any thoughts on dry air blowing this up?

I was kinda worried about that too, but as soon as I got under the 25 - 30 dbz returns, snow returned. 

I think we at least have this moisture to get through and this plume is the final one models have been keying on over the past couple of days. 

giphy.gif

 

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There's an impressive moisture flow all the way from Louisiana streaming NE ward. Not sure how long it will last, but this is basically what the GFS kept seeing that was laying down 2-4 inches. Not sure if the GFS was taking into account dry air causing virga.

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I was kinda worried about that too, but as soon as I got under the 25 - 30 dbz returns, snow returned. 
I think we at least have this moisture to get through and this plume is the final one models have been keying on over the past couple of days. 
giphy.gif&key=d1163a3adb25b4b26254cb11e8afbc179af7e8a6d17ace1308eda3add491a4ad
 

What about to the west of that? Will that stay west of the valley you think?


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@PowellVolz 

I think a lot of the precip. west of that is virga, at least in TN and maybe even NW Mississippi. 

There could be a last push up the eastern valley from that precip over LA that may overperform, but likely to far east for me:

HRRR as an example of what that could look like if it materializes: 

giphy.gif

 

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[mention=14393]PowellVolz[/mention] 
I think a lot of the precip. west of that is virga, at least in TN and maybe even NW Mississippi. 
There could be a last push up the eastern valley from that precip over LA that may overperform, but likely to far east for me:
HRRR as an example of what that could look like if it materializes: 
giphy.gif&key=09f71a98dc52f03b1619012bb120bd16de40aca7673b7581aaa4811cca9b6db0
 

Friend of mine is in Murfreesboro and she says it’s coming down heavy


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