Mesoscale Discussion 0681
   NWS Storm Prediction Center Norman OK
   0900 PM CDT Sat May 18 2019

   Areas affected...Southwest Tennessee...northwest Mississippi

   Concerning...Severe Thunderstorm Watch 188...

   Valid 190200Z - 190300Z

   The severe weather threat for Severe Thunderstorm Watch 188
   continues.

   SUMMARY...Storms have shown a decrease in intensity/organization
   over the past hour or so. Increasing stability in the downstream
   environment and lessened influence of the mid-level wave will
   continue this downward trend.

   DISCUSSION...KNQA radar imagery continues to show decreasing storm
   organization as outflow continues to outpace the convective line
   across southwest Tennessee and northwest Mississippi. Furthermore,
   these storms will continue to move eastward into increasingly stable
   environment and farther removed from the upper-level support in
   northern Missouri/southern Iowa. Expectation is that this downward
   trend in intensity will continue. WW 188 will likely be canceled
   before 05Z.

   ..Wendt.. 05/19/2019

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

   ATTN...WFO...MEG...

   LAT...LON   34549067 34819064 35309043 35649006 35708968 35298919
               34598933 34199008 34179054 34549067