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Mesoscale Discussion 292
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   MESOSCALE DISCUSSION 0292
   NWS STORM PREDICTION CENTER NORMAN OK
   1012 AM CDT FRI APR 04 2014

   AREAS AFFECTED...SERN LA...SRN MS

   CONCERNING...SEVERE THUNDERSTORM WATCH 62...

   VALID 041512Z - 041615Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 62
   CONTINUES.

   SUMMARY...SEVERE THREAT CONTINUES ACROSS SERN LA/SRN MS AHEAD OF
   MCS.

   DISCUSSION...TRAILING MCS HAS EVOLVED OVER THE LOWER MS VALLEY LATE
   THIS MORNING.  THERE APPEARS TO BE A WEAK MCV FORMING OVER SWRN MS
   WITHIN EXPANDING PRECIP SHIELD AND THIS MAY ULTIMATELY ENHANCE
   FORWARD PROPAGATION OF N-S SQUALL LINE AS IT PROGRESSES ACROSS SERN
   LA/SRN MS AT ROUGHLY 30-35KT.  AIR MASS DOWNSTREAM IS SLOWLY WARMING
   THROUGH THE MID 70S AND INSTABILITY IS EXPECTED TO GRADUALLY
   INCREASE AHEAD OF THIS ACTIVITY.  WHILE CONVECTION IS MOSTLY
   SUB-SEVERE AT THIS TIME...FORECAST SOUNDINGS SUGGEST HAIL/GUSTY
   WINDS MAY ACCOMPANY THE STRONGEST UPDRAFTS/DOWNDRAFTS AS BOUNDARY
   LAYER LAPSE RATES GRADUALLY STEEPEN.  LEADING EDGE OF MCS SHOULD
   SPREAD EAST OF WW62 BY 17Z...THEN PERHAPS INTO SRN AL SHORTLY AFTER
   18Z.

   ..DARROW.. 04/04/2014


   ATTN...WFO...BMX...MOB...JAN...LIX...LCH...SHV...

   LAT...LON   29439363 32719129 32728786 29439031 29439363 

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Page last modified: April 04, 2014
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