Mesoscale Discussion 1977
   NWS Storm Prediction Center Norman OK
   1227 PM CST Fri Dec 10 2021

   Areas affected...Far Northeast NE...Southeast
   SD...Southwest/South-Central MN...Northwest IA

   Concerning...Heavy snow 

   Valid 101827Z - 102230Z

   SUMMARY...Snowfall rates are expected to increase from northeast NE
   across southeast SD and northwest IA and into southern MN over the
   next few hours. One inch per hour rates will be common, with some
   isolated areas briefly experiencing two inch per hour rates.

   DISCUSSION...Regional radar imagery shows a consolidating band of
   moderate to occasionally heavy snowfall stretching from
   north-central NE into southern MN. Observational trends and recent
   guidance both suggest this band will persist across the region for
   the next several hours, with some additional
   intensification/organization possible as the western branch of warm
   conveyor continues to wrap around the low-level cyclone. This
   intensification should lead to a greater prevalence of heavy snow
   fall, with 1" per hour rates becoming more common/widespread.
   Isolated instances of 2" per hour rates are possible, particularly
   later this afternoon in the vicinity of  SD/MN/IA border
   intersection.

   ..Mosier.. 12/10/2021

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

   ATTN...WFO...MPX...DMX...FSD...OAX...LBF...

   LAT...LON   43359842 44169700 44529509 44349351 43629345 42859582
               42609834 43359842