Mesoscale Discussion 0145
   NWS Storm Prediction Center Norman OK
   1126 AM CST Fri Feb 16 2024

   Areas affected...portions of eastern Illinois into central Indiana
   and western Ohio

   Concerning...Heavy snow 

   Valid 161726Z - 162130Z

   SUMMARY...Occasional bouts of heavy snow are possible through early
   afternoon, with up to 1 inch/hr snowfall rates and reduced
   visibility possible.

   DISCUSSION...A 500 mb jet streak continues to overspread the OH
   Valley, which is encouraging 850-700 mb warm-air and moisture
   advection. The low-level warm-air advection trends are increasing
   the magnitudes of 700 mb frontogenesis, with deep-layer ascent
   strengthening within deepening/moistening dendritic growth zone. At
   least a few reports of heavy snow have been received within the past
   few hours and this trend is expected to continue through the
   afternoon. Up to 1 inch/hr snowfall rates will remain possible,
   along with brief periods of reduced visibility associated with an
   east-to-west oriented snowband.

   ..Squitieri.. 02/16/2024

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

   ATTN...WFO...ILN...IWX...IND...LOT...ILX...

   LAT...LON   39968985 40468929 40688653 40768462 40498368 39998348
               39798409 39518586 39478744 39518845 39628932 39968985