Mesoscale Discussion 0113
   NWS Storm Prediction Center Norman OK
   1056 AM CST Sun Feb 09 2020

   Areas affected...Most of central Wisconsin

   Concerning...Heavy snow 

   Valid 091656Z - 092200Z

   SUMMARY...Heavy snow will continue across much of central Wisconsin,
   with 1 inch/hr snowfall rates possible through mid-afternoon.

   DISCUSSION...A relatively small, but progressive mid-level shortwave
   trough will continue to translate across the Upper Mississippi
   Valley, with a favorable low-level mass response (deep-layer warm
   air/moisture advection) and deep-layer ascent continuing to support
   heavy snow potential within a precipitation shield now centered over
   Wisconsin. KARX and KMKX dual-polarimetric data, ASOS, and public
   reports continue to infer heavy snow falling across the area. Latest
   Mesoanalysis and RAP forecast soundings also depict a near saturated
   low- to mid-level vertical profile, with strong 1000-850 mb
   frontogenesis to enhance ascent within the aforementioned favorable
   1000-700 mb WAA/moisture advection regime. Very efficient dendrite
   production within a deep, saturated dendritic growth zone will
   promote at least modest potential for 1 inch/hr snowfall rates.

   09Z SREF, 12Z HREF, and 15Z HRRR all depict heavy snow continuing
   across central Wisconsin through at least 21Z. Thereafter, the rapid
   eastward propagation of the aforementioned shortwave and associated
   moisture advection axis will shift east, promoting a gradual decline
   in snowfall intensity.

   ..Squitieri.. 02/09/2020

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

   ATTN...WFO...GRB...MKX...ARX...

   LAT...LON   42888939 43179076 43429111 43949128 44339092 44719024
               44858912 44668813 44308752 43708740 43208749 42858772
               42888939