Mesoscale Discussion 1044
   NWS Storm Prediction Center Norman OK
   0720 PM CDT Sun Jun 28 2020

   Areas affected...Southeast MN...Northeast IA...Western WI

   Concerning...Tornado Watch 315...

   Valid 290020Z - 290215Z

   The severe weather threat for Tornado Watch 315 continues.

   SUMMARY...Greatest short-term severe threat is shifting across
   southeast MN into western Wisconsin.

   DISCUSSION...Remnant MCV that originated with central Plains
   convection has lifted north-northeast across western IA into
   south-central MN, very near McLeod County. This feature appears to
   be mostly responsible for an arcing band of scattered supercells
   that is spreading northeast toward the MS River, and soon to be in
   western WI. Air mass remains moist/buoyant just downstream and
   latest thinking is this activity, and subsequent severe threat, may
   spread a bit east of current watch border. For these reasons,
   tornado watch may need to be extended east to account for this
   threat.

   Upstream across northwestern IA, isolated thunderstorms are
   beginning to develop in the wake of the ongoing MCS. It would appear
   that weak short-wave ridging may negatively affect convection across
   this region; however, several CAMs solutions suggest deep convection
   may actually increase over the next few hours, possibly due to
   increasing LLJ. Will monitor this scenario for possible new ww.

   ..Darrow.. 06/29/2020

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

   ATTN...WFO...ARX...MPX...DMX...

   LAT...LON   43299333 44619454 44619209 43319096 43299333