Mesoscale Discussion 2031
   NWS Storm Prediction Center Norman OK
   0918 PM CDT Fri Sep 27 2019

   Areas affected...far northeast Missouri...far southeast
   Iowa...portions of central and northern Illinois

   Concerning...Tornado Watch 665...

   Valid 280218Z - 280415Z

   The severe weather threat for Tornado Watch 665 continues.

   SUMMARY...Severe risk continues across Tornado Watch 665.

   DISCUSSION...Latest radar loop shows some upscale growth/clustering
   of storms across the northern Illinois vicinity, near the steadily
   advancing cold front.  Some hint that storms are becoming undercut
   by outflow is evident, which -- along with a gradually stabilizing
   boundary layer -- suggests that surface-based risk may be slowly
   diminishing.  Still, along with hail potential, locally damaging
   winds and a brief tornado remain possible over the next couple of
   hours -- i.e. for the remainder of the WW valid time.

   ..Goss.. 09/28/2019

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

   ATTN...WFO...LOT...ILX...LSX...DVN...EAX...

   LAT...LON   41388855 40978816 40398813 39958940 39569222 39939244
               40359212 40889200 41338979 41388855