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December 29-January 3, 2022-23 | Tornado Outbreak | Day 1 & 2 Enhanced Risk


ClicheVortex2014

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Tornado watch to be likely issued.

Quote
 Mesoscale Discussion 0003
   NWS Storm Prediction Center Norman OK
   1134 AM CST Mon Jan 02 2023

   Areas affected...southeastern Oklahoma across the Arklatex

   Concerning...Severe potential...Watch possible 

   Valid 021734Z - 022000Z

   Probability of Watch Issuance...60 percent

   SUMMARY...Increasing convection -- and a corresponding/gradual
   increase in severe/tornado risk -- across the broader Arklatex
   vicinity will likely require Tornado Watch issuance this afternoon.

   DISCUSSION...Latest radar loop shows a steady increase in convective
   coverage across parts of East Texas, and northeastward into southern
   Arkansas.  This convection is ongoing within a zone of low-level
   warm advection well ahead of the main upper system (now over
   Colorado).  Weak height falls over the next several hours should
   continue contributing to an environment that supports an increase in
   QG-ascent-driven storms.

   A seasonably warm/moist boundary layer is observed across the area,
   with low 70s dewpoints across much of East Texas and into western
   Louisiana/southern Arkansas.  While substantial cloud cover is
   limiting diurnal heating, gradual/modest additional destabilization
   will likely fuel the anticipated convective increase.  This trend is
   also highlighted within some CAM runs, particularly including latest
   runs of the HRRR, which show substantial increases in both coverage
   and intensity of storms over the next few hours.

   While somewhat meridional/southerly, the deep-layer wind field
   across the area exhibits increasing flow with height through the
   lowest half of the troposphere.  This is resulting in ample shear
   for organized/rotating storms.  Gradual strengthening of the flow
   with time, as the upper system advances, will lend additional
   support to an anticipated/gradual increase in risk.  We will
   continue to monitor convective evolution, with expectations that a
   tornado watch will eventually be needed across a good portion of the
   discussion area this afternoon.

   ..Goss/Hart.. 01/02/2023

 

 

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Watch is up.

Quote
URGENT - IMMEDIATE BROADCAST REQUESTED
   Tornado Watch Number 1
   NWS Storm Prediction Center Norman OK
   120 PM CST Mon Jan 2 2023

   The NWS Storm Prediction Center has issued a

   * Tornado Watch for portions of 
     Central and Southwest Arkansas
     Northwest Louisiana
     Southeast Oklahoma
     Northeast Texas

   * Effective this Monday afternoon and evening from 120 PM until
     900 PM CST.

   * Primary threats include...
     A few tornadoes likely with a couple intense tornadoes possible
     Scattered damaging wind gusts to 70 mph likely
     Scattered large hail events to 1.5 inches in diameter possible

   SUMMARY...Thunderstorms will continue to increase in coverage
   through the afternoon over the watch area, with a few storms likely
   intensifying to severe levels.  Damaging wind gusts and a few
   tornadoes are the main threats.  The risk is expected to persist
   well into the night across much of this area.

   The tornado watch area is approximately along and 65 statute miles
   east and west of a line from 50 miles south southwest of Longview TX
   to 35 miles northwest of Batesville AR. For a complete depiction of
   the watch see the associated watch outline update (WOUS64 KWNS
   WOU1).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Tornado Watch means conditions are favorable for
   tornadoes and severe thunderstorms in and close to the watch
   area. Persons in these areas should be on the lookout for
   threatening weather conditions and listen for later statements
   and possible warnings.

   &&

   AVIATION...Tornadoes and a few severe thunderstorms with hail
   surface and aloft to 1.5 inches. Extreme turbulence and surface wind
   gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
   storm motion vector 22035.

   ...Hart

 

 

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1 minute ago, ClicheVortex2014 said:

South of Shreveport is starting to pop off.

image.thumb.png.9b4719b0efe16a5ffabdc8daaac4ac80.png

 

Also a pretty solid EML with a saturated profile under it

6kCq94w.gif

Ummm, would it be better if you can do a direct upload to this site? My School has banned Imgur on all of their devices, not Gifyu though. 

 

But wow, any storm that could go up has the potential to explode. 

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2 minutes ago, Iceresistance said:

Ummm, would it be better if you can do a direct upload to this site? My School has banned Imgur on all of their devices, not Gifyu though. 

 

But wow, any storm that could go up has the potential to explode. 

 

OUN.gif

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This supercell is strengthening at a quick pace. Something that looks interesting to me is the band of convection to its southeast. Kinda looks like a surface wind convergence band. Not sure if it is, but that's what it looks like to me. If that's the case, then there could be some enhanced low-level shear with it.

image.thumb.png.397766db4bd0ef525eeb77e0add5f431.png

Edited by ClicheVortex2014
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