Mesoscale Discussion 1642
   NWS Storm Prediction Center Norman OK
   1133 PM CDT Sat Aug 29 2020

   Areas affected...southeast Oklahoma...southwest Arkansas...northeast
   Texas...northern Louisiana

   Concerning...Severe Thunderstorm Watch 472...

   Valid 300433Z - 300600Z

   The severe weather threat for Severe Thunderstorm Watch 472
   continues.

   SUMMARY...An MCS will gradually shift south across the Arklatex
   area, with a continued threat of gusty winds and heavy rain.

   DISCUSSION...An MCS with impressive IR presentation (cloud top
   temperatures to -80 C) is approaching the Red River, overturning a
   very moist and unstable air mass. Southwest winds at 850 mb will
   favor continued inflow into this system as it propagates slowly
   southward. Periodic strong to severe downdrafts remain possible. A
   slight westward growth/expansion cannot be ruled out as pockets of
   warmer air remain surrounding the Metroplex. However, additional
   watches may not be necessary.

   ..Jewell.. 08/30/2020

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...LZK...SHV...TSA...FWD...OUN...

   LAT...LON   34069636 34269575 34539460 34409281 33729230 33469235
               32829329 32909462 33109602 33369625 33729644 34069636