Mesoscale Discussion 0161
   NWS Storm Prediction Center Norman OK
   1012 AM CST Tue Feb 27 2024

   Areas affected...Eastern CO to northern NE

   Concerning...Snow Squall 

   Valid 271612Z - 271915Z

   SUMMARY...A short-duration moderate to heavy snow band that is
   effectively producing sporadic snow squall conditions should spread
   east-southeast into early afternoon across parts of eastern Colorado
   and northern Nebraska.

   DISCUSSION...700-mb frontogenetical forcing for ascent has supported
   a narrow band of moderate to heavy snow across a portion of the
   Denver Metro Area northeastward into north-central NE, per surface
   observations and road cameras. The northeast extent of this band is
   well removed from the surface cold front that is marching
   south-southeast from IA to north KS and east-central CO. Strong,
   post-frontal gradient winds are combining with the narrow snow band
   to produce snow squall-like conditions with substantial reduction in
   visibility despite the mesoanalysis snow squall parameter holding
   less than 0.1. The stronger 700-mb frontogenesis is largely expected
   to shift east in NE and gradually weaken while shifting southeast in
   eastern CO. This may yield breaks in the ongoing thin band, a
   scenario supported by recent RRFS guidance.

   ..Grams.. 02/27/2024

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

   ATTN...WFO...FSD...OAX...GID...LBF...GLD...PUB...BOU...

   LAT...LON   40220439 40670277 42470020 43039938 43249835 42959772
               42399785 41349895 40180157 39480232 38740295 38480341
               38500383 38770443 39260477 40220439