Mesoscale Discussion 0147
   NWS Storm Prediction Center Norman OK
   0304 PM CST Fri Feb 16 2024

   Areas affected...portions of southern Illinois into central and
   southern Indiana...southwestern Ohio...extreme northern Kentucky

   Concerning...Heavy snow 

   Valid 162104Z - 170100Z

   SUMMARY...Heavy snow will continue over the next several hours. At
   least 1 inch/hour snowfall rates are expected, accompanied by
   periods of reduced visibility.

   DISCUSSION...Heavy snow has been on the increase in terms of
   coverage and intensity over the last few hours as surface cold air
   advection along/just north of the OH River is overspread by
   continued warm-air/moisture advection aloft. Within a broader zonal
   band of snow, the heaviest rates (i.e. 1+ inch/hr) should occur near
   the 700 mb frontogenesis axis, where ascent within the dendritic
   growth zone should be greatest. The heavier snow, along with reduced
   visibility, should progress east-southeastward this afternoon into
   the evening hours (per 12Z HREF calibrated guidance).

   ..Squitieri.. 02/16/2024

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

   ATTN...WFO...ILN...LMK...IND...PAH...ILX...LSX...

   LAT...LON   39958370 39658349 39108370 38688435 38348555 38148742
               38088900 38238993 38459028 38699026 38759022 39048946
               39558723 39898549 40048470 39998389 39958370