Mesoscale Discussion 1259
   NWS Storm Prediction Center Norman OK
   0402 AM CDT Sat Jul 18 2020

   Areas affected...Southeastern MN into central/northeastern WI and
   western Upper MI

   Concerning...Severe Thunderstorm Watch 381...

   Valid 180902Z - 181030Z

   The severe weather threat for Severe Thunderstorm Watch 381
   continues.

   SUMMARY...The MCS now moving across northwestern WI and southeastern
   MN is expected to weaken slowly through the remainder of the
   morning.  An additional downstream watch appears unnecessary.

   DISCUSSION...Per IR satellite/radar imagery and lightning detection
   data, the MCS now moving over southeastern MN and northwestern WI is
   in the process of weakening.  This trend will likely continue as the
   convection begins to spread east of the richer low-level moisture
   feed and larger CAPE, and as lift along the gust front weakens in
   conjunction with veering of the low-level jet to west-southwesterly.
   The convection will probably spread east of WW 381 by 0930-1000z,
   where isolated strong/severe outflow gusts cannot be ruled out. 
   However, a less favorable environment with eastward extent across WI
   suggests that an additional downstream watch is unnecessary.

   ..Thompson.. 07/18/2020

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

   ATTN...WFO...MQT...GRB...ARX...MPX...

   LAT...LON   45028783 44588862 44139011 44079178 44169251 44289255
               44709162 45229011 45998940 46648921 46998869 46998818
               46718756 46128731 45028783