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Message

re: Tornado! Large PDS Watch Issued for Portions of LA & MS

Posted on 11/29/22 at 10:59 am to
Posted by trussthetruzz
Marquette, MI
Member since Sep 2020
9236 posts
Posted on 11/29/22 at 10:59 am to
It’s 77 and sunny in BR at my house. That can’t be good
Posted by BPTiger
Atlanta
Member since Oct 2011
5791 posts
Posted on 11/29/22 at 11:07 am to
And so it begins
Posted by Roll Tide Ravens
Birmingham, AL
Member since Nov 2015
48906 posts
Posted on 11/29/22 at 11:08 am to
Temp up to 68.5 at my location north of B'ham. Dew point at 56.
Posted by LegendInMyMind
Member since Apr 2019
67074 posts
Posted on 11/29/22 at 11:14 am to
That severe warning near Amory is more interesting than the earlier one.
Posted by Wishnitwas1998
where TN, MS, and AL meet
Member since Oct 2010
61798 posts
Posted on 11/29/22 at 11:14 am to
I'm pretty surprised by that shift

I'm pretty out of my depth with this set up but I really wasn't seeing how Tennsippibama was gonna get much severe development out of this

Our friends to the south however.....
Posted by rt3
now in the piney woods of Pineville
Member since Apr 2011
144368 posts
Posted on 11/29/22 at 11:17 am to
quote:

Meteorologist Nick Mikulas
Things continue to look like they’ll get quite rough today. These early showers weren’t expected to do much, but the heavier ones did exhibit some weak, mid level rotation. It appears the table is set for some to see multiple rounds of severe weather today, especially north of a DeRidder to Opelousas line.

I’ve already said pretty much everything that needs to be said. This has high end potential, and could bring all modes of severe weather. This is from the latest SPC update... “Present indications are that primary thunderstorm development will begin early this afternoon over parts of LA, spreading quickly into MS. This corridor may see multiple waves of severe convection as storms redevelop upstream through the evening.”

Again, multiple waves means that just because you experience a severe storm, you aren’t immune to seeing more rough weather. I’ve posted simulated radar images from the pretty consistent HRRR model at 3:00 and 7:00 PM showing the discrete nature of what will likely be supercell thunderstorms capable of producing tornadoes. This is a model representation, so it’s entirely likely these storms will be in slightly different positions, but this gives a good idea on the potential this afternoon brings. I’m rested up and ready to watch radar. I won’t be able to stream because I can’t say more than a few words without coughing. But I’ll be here analyzing, and posting all day.




Posted by Wishnitwas1998
where TN, MS, and AL meet
Member since Oct 2010
61798 posts
Posted on 11/29/22 at 11:20 am to
Already a discrete cell severe warned south of Tupelo

Little surprised this early but they throw the severe warnings out like candy so idk how significant it is. I wish I could see some severe thunderstorm warning FAR numbers. I bet it ain't pretty
Posted by Rebel
Graceland
Member since Jan 2005
138413 posts
Posted on 11/29/22 at 11:24 am to
Public schools in Memphis dismissing students early because of "rain".

Jesus tap dancing Christ.
Posted by LegendInMyMind
Member since Apr 2019
67074 posts
Posted on 11/29/22 at 11:25 am to
That storm should still be elevated. It looks to have a hail threat and maybe just enough wind.
Posted by deltaland
Member since Mar 2011
97168 posts
Posted on 11/29/22 at 11:26 am to
quote:

Public schools in Memphis dismissing students early because of "rain".


That’s redundant that far north. Jackson I could understand but Memphis should mostly be fine
Posted by rds dc
Member since Jun 2008
20622 posts
Posted on 11/29/22 at 11:28 am to
quote:

Consideration was made to introduce a small HIGH risk, but still too much uncertainty in the exact corridor of highest risk since moisture is not yet in place and there is no surface boundary to focus on.


The lack of boh large scale and mesoscale forcing has been the primary failure mode for the past few days. WAA showers may never get surfaced base but have enough coverage to keep things in check. However, there does appear to be a boundary setting up from Northern MS and sagging down through North LA and back along I20. That would be the area to watch for storms becoming surfaced based. Also, the lack of strong large scale forcing might favor discrete storm mode.
Posted by Bobby OG Johnson
Member since Apr 2015
31976 posts
Posted on 11/29/22 at 11:31 am to
Well

Posted by LegendInMyMind
Member since Apr 2019
67074 posts
Posted on 11/29/22 at 11:31 am to
quote:

However, there does appear to be a boundary setting up from Northern MS and sagging down through North LA and back along I20.

The HRRR picked that up pretty well. That's really the forcing at the moment, but more pre-frontal boundaries were evident as the afternoon/evening went on.

I think keeping an eye on any outflow boundaries is good idea, too.
This post was edited on 11/29/22 at 11:34 am
Posted by LegendInMyMind
Member since Apr 2019
67074 posts
Posted on 11/29/22 at 11:31 am to
Yep. Figured that was coming.
Posted by rds dc
Member since Jun 2008
20622 posts
Posted on 11/29/22 at 11:33 am to
quote:

Well


Matches up nicely with the apparent developing boundary and the 12z HREF.
Posted by BregmansWheelbarrow
Member since Mar 2020
3016 posts
Posted on 11/29/22 at 11:35 am to
In southwest Louisiana, it looks like we might get some straggling storms but will mostly miss the really bad stuff.
Posted by Wishnitwas1998
where TN, MS, and AL meet
Member since Oct 2010
61798 posts
Posted on 11/29/22 at 11:37 am to
It also adds fuel to my grandmother's panic fire (she lives in east Memphis)

She watches the local news like it's her religion and takes absolutely everything they say as complete gospel so she thinks the end times are here
This post was edited on 11/29/22 at 11:38 am
Posted by When in Rome
Telegraph Road
Member since Jan 2011
35988 posts
Posted on 11/29/22 at 11:38 am to
How’s I12/10 looking for early afternoon?
Posted by udtiger
Over your left shoulder
Member since Nov 2006
108438 posts
Posted on 11/29/22 at 11:41 am to
quote:

How’s I12/10 looking for early afternoon?


shitshow...but nothing to do with the weather
Posted by rt3
now in the piney woods of Pineville
Member since Apr 2011
144368 posts
Posted on 11/29/22 at 11:45 am to
CenLA is on the board

quote:

NWS Lake Charles @NWSLakeCharles
Tornado Warning including Mamou LA, Oberlin LA and Pine Prairie LA until 12:15 PM CST


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