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Supercells vs Linear Pile of Poo (LPP)
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TOPIC: Supercells vs Linear Pile of Poo (LPP)
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#50785
jcpalmer
Moderator
Posts: 2079
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Supercells vs Linear Pile of Poo (LPP) 3 Years ago Karma: 75
I'm getting better with forecasting, but there are always more questions.

I'm trying to figure out the best way from looking at the models to distinguish between supercell development and QLCS (i.e. linear pile of poo).
Edit: *ahem* That's Multi Cellular Choo-Choo Train, Jenn. (MCCCT)

The way I have been trying to do it is by looking at shear in the environment. If there is little directional shear but all the other conditions for severe weather are there, I usually assume that the system will be mostly linear.

It's worked so far, but I want to make sure I'm on the right track!

Thanks!
 
Last Edit: 2011/04/01 14:24 By SkyEyeJo.
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#50814
Susan
EF-3
Posts: 626
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Re:Supercells vs Linear Pile of Poo (LPP) 3 Years ago Karma: 22
ok. works for me!
 
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#50815
James1
EF-3
Posts: 920
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Re:Supercells vs Linear Pile of Poo (LPP) 3 Years ago Karma: 65
Alright, well here are the main things I look at Jenn:

1. If theres a thermal inversion (cap) will it or when will it erode? If the cap erodes too early its likely that you'll get a lot of crapvection clutter over an are that turns into linear storm modes (usually).

2. Wheres the cold front? If the cold front is swinging through quickly into a target area, its likely that the strong forcing from that cold front is going to make storm congeal into an ugly squall line/MCS.

3. What do the wind fields look like? The weaker the shear and upper level/anvil winds the greater likelihood of HP storms and probably a squall line.

Those are three things I use but there are many other ways to differentiate between a squall line environment versus others. Hope this helps!
 
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#50818
jcpalmer
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Posts: 2079
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Re:Supercells vs Linear Pile of Poo (LPP) 3 Years ago Karma: 75
Helpful karma to you, James!!!

Thanks for the explanation!
 
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#50897
JohnJ
EF-0
Posts: 4
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Re:Supercells vs Linear Pile of Poo (LPP) 3 Years ago Karma: 0
Linear pile of poo? Lol good read here.
 
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#50901
jcpalmer
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Posts: 2079
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Re:Supercells vs Linear Pile of Poo (LPP) 3 Years ago Karma: 75
JohnJ wrote:
Linear pile of poo? Lol good read here.



I prefer individual photogenic supercells than unchaseable, widespread damage causing LPP's!
 
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#50909
keltonhalbert
EF-3
Posts: 538
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Re:Supercells vs Linear Pile of Poo (LPP) 3 Years ago Karma: 48
Don't discount linear as being an LPP =). The last linear system that came in spat out 3 EF-1 tornadoes and countless severe wind reports in the area of Middle Tennessee alone, with 1377 severe reports across the entire SE. There wasn't much poo in that linear =P.
 
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#50910
jcpalmer
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Posts: 2079
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Re:Supercells vs Linear Pile of Poo (LPP) 3 Years ago Karma: 75
Oh don't get me wrong! I have the utmost respect for linear systems..

They are POO in my opinion because they are unchaseable...
 
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#50995
ArgentinaTwister
EF-1
Posts: 140
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Re:Supercells vs Linear Pile of Poo (LPP) 3 Years ago Karma: 8
I first read pile of Poop
 
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