Mesoscale Discussion 0126
   NWS Storm Prediction Center Norman OK
   0852 AM CST Sun Feb 21 2021

   Areas affected...I-80 corridor in Iowa

   Concerning...Heavy snow 

   Valid 211452Z - 211915Z

   SUMMARY...Bands of heavy snow possible within the I-80 corridor.
   Heaviest rates will generally be near 1 in. per hour and will
   diminish by 2-3 PM CST.

   DISCUSSION...A strong mid-level shortwave trough and strong 700 mb
   warm advection has led to bands of heavy snowfall in the Omaha, NE
   vicinity. A band of heavier snow is currently ongoing to the west of
   Des Moines moving northeast. As this system tracks to the east
   today, heavy snowfall will continue to be possible along and north
   of the I-80 corridor today. Peak snowfall rates of around 1 inch per
   hour with isolated heavier rates are expected to occur within the
   next 4-5 hours. Thereafter, lift within the dendritic growth layer
   and 700 mb warm advection become more diffuse and snowfall rates
   should decrease.

   ..Wendt.. 02/21/2021

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

   ATTN...WFO...DVN...DMX...FSD...OAX...

   LAT...LON   41229606 41519644 42049635 42479473 42729318 42559177
               42149148 41689174 41399236 41349290 41259366 41199474
               41209541 41229606