Mesoscale Discussion 0127
   NWS Storm Prediction Center Norman OK
   1056 AM CST Sun Feb 11 2024

   Areas affected...West to northwest Texas

   Concerning...Heavy snow 

   Valid 111656Z - 112100Z

   SUMMARY...Periods of heavy snow with snowfall rates approaching 1
   in/hour should continue into the early afternoon hours across
   portions of west to northwest Texas.

   DISCUSSION...Surface observations over the past 1-2 hours across
   western TX have reported periods of visibility reductions down to
   1/2 to 1/4 mile, indicative of moderate to heavy snowfall rates.
   This trend is expected to persist for the next few hours as lift
   within the left-exit region of an upper jet continues to coincide
   with a mid-level deformation zone at around 700 mb. While the
   dendritic growth zone is expected to remain somewhat shallow (around
   50-100 mb deep), ascent through the 700-500 mb layer with lapse
   rates approaching 7-8 C/km should continue to promote moderate to
   heavy snowfall rates up to 1 inch/hour. Weak frontogenesis should
   limit the potential for long duration snow bands, but latest
   forecast guidance suggests that favorable overlap of mid/upper-level
   ascent will linger over west to northwest TX through early
   afternoon.

   ..Moore.. 02/11/2024

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

   ATTN...WFO...OUN...LUB...

   LAT...LON   34730173 34740092 34680017 34519985 34249969 33939969
               33649984 33430016 33410058 33370131 33440205 33490231
               33740273 34070294 34370283 34610248 34730173