Storm Prediction Center Mesoscale Discussion 151

   Mesoscale Discussion 0151
   NWS Storm Prediction Center Norman OK
   0436 PM CST Fri Mar 06 2026

   Areas affected...Northeast Colorado into western Nebraska

   Concerning...Heavy snow 

   Valid 062236Z - 070230Z

   SUMMARY...Moderate to heavy snow bands will likely continue into the
   early evening hours across northeast Colorado into parts of western
   Nebraska. Snowfall rates may exceed 1 inch/hour under the more
   persistent bands.

   DISCUSSION...Transient snow bands have been evident in regional
   radar mosaics over the past couple of hours across northeast CO  and
   western NE. ASOS/AWOS observations under these bands have been
   reporting visibility reductions down to 1/4 mile at times under the
   heavier bands. Despite winds of 20-25 mph, blowing snow model output
   suggests these visibility reductions are mainly attributable to
   heavy snowfall rates given temperatures in the upper 20s/low 30s.

   Heading into the evening hours, strong synoptic ascent within the
   left-exit region of a passing upper jet coupled with more focused
   frontogenetical lift between 850-700 mb will support a continuation
   of at least transient heavy snow bands across northeast CO and into
   parts of western NE for the next several hours. Although some areas
   remain above freezing, an influx of colder air behind a passing cold
   front should allow for temperatures through the lowest couple of
   kilometers to fall below freezing and support moderate to heavy
   snowfall rates later this evening. Based on recent observations and
   latest model guidance, snowfall rates up to one inch/hour appear
   likely under the heavier, more persistent snow bands.

   ..Moore.. 03/06/2026

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

   ATTN...WFO...LBF...GLD...BOU...CYS...

   LAT...LON   42530228 42560160 42410125 42110098 41800093 41460099
               41230127 40930167 40650203 40030254 39520307 39180360
               39130393 39220427 39430456 39770464 40110455 40630436
               41130395 42210277 42530228