Storm Prediction Center Mesoscale Discussion 143

   Mesoscale Discussion 0143
   NWS Storm Prediction Center Norman OK
   1117 PM CST Tue Mar 04 2025

   Areas affected...portions of western and central Iowa into southern
   Minnesota

   Concerning...Blizzard 

   Valid 050517Z - 050915Z

   SUMMARY...Heavy snow should occur for at least a few more hours.
   Occasional blizzard conditions remain possible.

   DISCUSSION...A surface low over northern MO continues to deepen
   while tracking toward the Great Lakes. Across the northwest quadrant
   of the surface low, surface observations from western IA into
   southern MN have shown north-northwesterly surface winds exceeding
   35 kts amid heavy snow and visibility reduced to at least a half
   mile in spots. These conditions should continue across the
   northwestern quadrant of the surface low for at least a few more
   hours, as also suggested by the latest high-resolution model
   guidance.

   ..Squitieri.. 03/05/2025

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

   ATTN...WFO...ARX...MPX...DMX...EAX...FSD...OAX...

   LAT...LON   44109207 42059332 40649425 40119454 39959500 40169562
               41069612 41569616 42939607 43749573 43949535 44739408
               45219303 45169243 44919209 44109207