Storm Prediction Center Mesoscale Discussion 883

   Mesoscale Discussion 0883
   NWS Storm Prediction Center Norman OK
   0756 PM CDT Tue May 21 2024

   Areas affected...Central and southern Wisconsin

   Concerning...Tornado Watch 281...282...

   Valid 220056Z - 220200Z

   The severe weather threat for Tornado Watch 281, 282 continues.

   SUMMARY...A developing squall line will quickly progress
   northeastward through the late evening hours. Damaging wind gusts up
   to 75 to 85 mph and embedded tornadoes will accompany it.

   DISCUSSION...Continued upscale growth has led to a north-south
   squall line developing across central WI. A few embedded
   mesovortices have been noted, along with a pair of embedded
   supercells on the southern flank near and north of Madison. The
   upstream low-level shear environment remains favorable for QLCS
   tornadoes where bowing segments can surge northward becoming more
   west to east oriented. In addition, deepening cold pools will
   continue to support severe damaging wind gusts. Marginally severe
   hail can't be ruled out, although waning instability and increasing
   MLCINH will likely keep the threat isolated.

   ..Barnes.. 05/22/2024

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

   ATTN...WFO...GRB...LOT...MKX...DVN...ARX...

   LAT...LON   42519018 42589016 42958993 43308965 43678958 43938974
               44118990 44299012 44709032 44979028 45228998 45358952
               45328900 45148834 44988786 44688757 44348755 43868774
               43298785 42728810 42358837 42238870 42298937 42389001
               42519018