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Mesoscale Discussion 758
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   MESOSCALE DISCUSSION 0758
   NWS STORM PREDICTION CENTER NORMAN OK
   0650 AM CDT MON MAY 25 2015

   AREAS AFFECTED...NW TX

   CONCERNING...SEVERE THUNDERSTORM WATCH 209...

   VALID 251150Z - 251245Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 209
   CONTINUES.

   SUMMARY...CLUSTER OF STRONG TO SEVERE STORMS EXPECTED TO DEVELOP
   EAST-NORTHEAST FROM THE TEXAS SOUTH PLAINS TOWARDS THE LOW ROLLING
   PLAINS AND BIG COUNTRY THROUGH MIDDAY.

   DISCUSSION...TSTMS HAVE INTENSIFIED JUST N OF MAF WITHIN STRONGLY
   FORCED ASCENT IMMEDIATELY AHEAD OF A COMPACT SHORTWAVE TROUGH. AS
   THIS IMPULSE TRACKS E/NE THROUGH LATE MORNING...STRONG TO SEVERE
   STORMS WILL PROBABLY BE MAINTAINED ALONG THE NWRN PERIPHERY OF THE
   WRN GULF AIR MASS THAT HAS BECOME ESTABLISHED ACROSS THE BIG
   COUNTRY. WITH MID-LEVEL LAPSE RATES EXCEEDING 8 DEG C/KM...LARGE
   HAIL WILL BE THE PRIMARY INITIAL HAZARD. DEVELOPMENT OF A COLD POOL
   AND ASSOCIATED DIFFERENTIAL HEATING WITH DESTABILIZING DOWNSTREAM
   AIR MASS SHOULD FOSTER AN INCREASING DAMAGING WIND RISK BY LATE
   MORNING.

   ..GRAMS.. 05/25/2015


   ATTN...WFO...FWD...OUN...SJT...LUB...MAF...

   LAT...LON   31550126 32090305 32150305 32680305 32860305 32950305
               33810208 33830168 33830162 33830158 33830152 33830140
               33830125 33830087 33840051 33840038 33840006 33840000
               33409894 32959894 32089912 31579972 31550126 31550126 

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Page last modified: May 25, 2015
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