Storm Prediction Center Mesoscale Discussion 52

   Mesoscale Discussion 0052
   NWS Storm Prediction Center Norman OK
   0452 PM CST Tue Jan 21 2025

   Areas affected...Far Southeast Louisiana...Far Southern
   Mississippi...Far Southern Alabama...Florida Panhandle

   Concerning...Heavy snow 

   Valid 212252Z - 220445Z

   SUMMARY...Heavy snow will be likely over the next few hours along
   parts of the central Gulf Coast from far southeast Louisiana into
   the Florida Panhandle and southern Alabama. Snowfall rates are
   expected to exceed 1 inch per hour within the heaviest parts of the
   band.

   DISCUSSION...Water vapor imagery shows a mid-level trough from the
   Ohio Valley extending southwestward into the lower Mississippi
   Valley. A powerful mid-level jet of 100 to 140 knots is located to
   the east of the trough, with the exit region of this jet located in
   the central Gulf Coast region.  Widespread precipitation is ongoing
   beneath this feature (where lift is strong) from far southeast
   Louisiana east-northeastward into the Florida Panhandle and southern
   Alabama. Most of the precipitation is in the form of snow, with some
   reports of heavy snow. The latest model forecasts suggest that a
   band of strong isentropic ascent will continue to spread eastward
   across the central Gulf Coast region, making conditions favorable
   for heavy snow over the next few hours. Snowfall rates are expected
   to exceed 1 inch per hour in some locations. The potential for heavy
   snow is expected to continue into early to mid evening over southern
   Alabama and the Florida Panhandle. Further to the west, snowfall
   rates should gradually decrease over parts of far southeast
   Louisiana and southern Mississippi.

   ..Broyles/Smith.. 01/21/2025

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

   ATTN...WFO...TAE...BMX...MOB...LIX...

   LAT...LON   31968552 31388505 30768485 30258490 29918518 29958587
               30098666 30118728 29978839 29728905 29538948 29508972
               29708985 29978979 30298952 30718851 31188774 32058650
               31968552