Storm Prediction Center Mesoscale Discussion 2255

   Mesoscale Discussion 2255
   NWS Storm Prediction Center Norman OK
   1156 AM CST Tue Dec 09 2025

   Areas affected...portions of northern into central Minnesota

   Concerning...Heavy snow 

   Valid 091756Z - 092300Z

   SUMMARY...Moderate to heavy snow is expected to begin over the next
   few hours. 1 inch/hour snowfall rates are possible.

   DISCUSSION...A surface-850 mb low is beginning to intensify while
   shifting southeastward across ND, which is resulting in increased
   low-level warm-air/moisture advection within a sub-freezing
   troposphere over northern to central MN. A primary band of at least
   light to moderate snow is already in place along the ND/MN border,
   and this band is expected to intensify with increased 850-700 mb
   frontogenesis over central MN over the next several hours. Increased
   saturation of the dendritic growth zone should support widespread
   moderate snowfall rates, but at least a few instances of heavy snow
   are possible, including snowfall rates locally exceeding 1
   inch/hour.

   ..Squitieri.. 12/09/2025

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

   ATTN...WFO...DLH...MPX...FGF...

   LAT...LON   47919705 48009693 48069675 48079663 48049635 47949602
               47629508 47199421 46929378 46239305 45759294 45389305
               45229348 45199421 45259516 45429561 45799613 47029686
               47419699 47719709 47919705