Mesoscale Discussion 0847
   NWS Storm Prediction Center Norman OK
   0744 AM CDT Tue May 28 2019

   Areas affected...South-central Iowa

   Concerning...Severe Thunderstorm Watch 271...

   Valid 281244Z - 281445Z

   The severe weather threat for Severe Thunderstorm Watch 271
   continues.

   SUMMARY...An isolated severe threat will likely continue across
   south-central into southeastern Iowa for a couple more hours this
   morning. Wind damage and hail will be the primary threats.

   DISCUSSION...The latest radar imagery shows a short line segment
   extending southward from the vicinity of Des Moines to near the
   Missouri-Iowa state-line. This feature is located to the north of a
   quasi-stationary front extending west to east across northern
   Missouri. The RAP is estimating MUCAPE values to the north of the
   front in the 1200 to 1800 J/kg range. In addition, effective shear
   is estimated near 45 kt which is likely being enhanced by a jet
   streak near 700 mb centered on southeastern Iowa. As the line moves
   eastward across southeastern Iowa over the next couple of hours,
   wind damage will continue to be possible. Hail may also occur in the
   strongest of cores.

   ..Broyles/Guyer.. 05/28/2019

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

   ATTN...WFO...DVN...DMX...EAX...OAX...

   LAT...LON   40589218 40579489 41159494 41179514 41509512 41519469
               41599470 41639476 41869476 41869227 41529228 41529241
               41179240 41169217 40589218