Mesoscale Discussion 0112
   NWS Storm Prediction Center Norman OK
   0639 AM CST Sun Feb 09 2020

   Areas affected...Southern MN...West-Central/Central/Southwest WI

   Concerning...Heavy snow 

   Valid 091239Z - 091645Z

   SUMMARY...Snowfall rates from 1" to 2" per hour will continue across
   southern MN, expanding into more of western/southwest WI over the
   next few hours.

   DISCUSSION...Recent regional radar imagery shows a band of heavy
   snowfall across southern MN southeastward into west-central WI.
   Low-level jet and resulting warm-air advection/frontogenesis
   responsible for this band are expected to continue progressing
   eastward this morning. As result, this band of heavy snowfall is
   also expected to shift eastward, bringing the heavy snowfall ongoing
   across southern MN into more of west-central, central, and southwest
   WI.

   Based on recent mesoanalysis, 850 mb frontogenesis is currently
   maximized from south-central into southeast MN, where the 850 mb
   winds are strongest. This area corresponds well to the METAR reports
   of heavy snow over the last 30 minutes. Snowfall rates of 1" per
   hour will be common throughout this entire band, with snowfall rates
   closer to 2" per hour where frontogenesis is maximized.

   ..Mosier.. 02/09/2020

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

   ATTN...WFO...GRB...MKX...ARX...MPX...FSD...

   LAT...LON   43819311 44109422 44179512 44559536 44979502 45419330
               45389171 45059020 44428931 43758906 43098906 42818954
               42879047 43199113 43499200 43819311