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Mesoscale Discussion 105
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   MESOSCALE DISCUSSION 0105
   NWS STORM PREDICTION CENTER NORMAN OK
   0545 AM CST FRI FEB 27 2015

   AREAS AFFECTED...PARTS OF THE TX S PLAINS AND LOW ROLLING PLAINS

   CONCERNING...HEAVY SNOW 

   VALID 271145Z - 271345Z

   SUMMARY...LOCALIZED HEAVY SNOWFALL RATES OF 1.0-1.5 INCH PER HOUR
   ARE POSSIBLE OVER THE NEXT FEW HOURS ACROSS PARTS OF THE TX S PLAINS
   AND LOW ROLLING PLAINS.

   DISCUSSION...RADAR MOSAIC OVER THE PAST FEW HOURS HAS SHOWN THE
   DEVELOPMENT OF A MAINLY W TO E ORIENTED SNOW BAND FROM LAMB COUNTY
   EWD TO KING COUNTY TX.  OBSERVATIONS FROM THE LBB VICINITY SHOW
   SNOWFALL RATES IN THE 1.0-1.5 INCH PER HOUR RANGE ACCOMPANYING THE
   SNOW BAND.  WATER VAPOR IMAGERY SHOWS A VIGOROUS SHORTWAVE TROUGH
   MOVING ACROSS N-CNTRL NM EARLY THIS MORNING AND THIS FEATURE WILL
   MOVE INTO WRN PORTIONS OF THE TX S PLAINS/PANHANDLE REGIONS OVER THE
   NEXT FEW HOURS.  LARGE-SCALE ASCENT ACCOMPANYING THE MID-LEVEL
   DISTURBANCE COUPLED WITH FRONTOGENESIS IN THE H7-H6 LAYER IS BEING
   MANIFEST INTO A LOCALIZED HEAVY SNOW BAND OVER THE TX S PLAINS. 
   MODEL GUIDANCE SHOWS THE MAXIMA IN H7-H5 UVV/S SPREADING EWD FROM TX
   S PLAINS INTO THE LOW ROLLING PLAINS OVER THE NEXT 2 HOURS.  AS A
   RESULT...EXPECT A SLIGHT ENEWD MOTION TO THE FRONTOGENETIC SNOW BAND
   THROUGH 1345Z.

   ..SMITH.. 02/27/2015


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

   LAT...LON   33969971 33539999 33820188 34360190 33969971 

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Page last modified: February 27, 2015
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