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Mesoscale Discussion 272
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   MESOSCALE DISCUSSION 0272
   NWS STORM PREDICTION CENTER NORMAN OK
   0844 PM CDT THU APR 03 2014

   AREAS AFFECTED...NERN TX...ERN OK...FAR WRN AND SRN AR...NRN LA

   CONCERNING...TORNADO WATCH 51...52...

   VALID 040144Z - 040215Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 51...52...CONTINUES.

   SUMMARY...A NEW TORNADO WATCH WILL BE COORDINATED SOON TO REPLACE
   PARTS OF WW 52 OVER NERN TX...AND INCLUDE FAR SERN OK INTO PART OF
   SWRN-SRN AR AND NRN LA.  MEANWHILE...WW 51 WILL BE ALLOWED TO EXPIRE
   AT 02Z AS THE OVERALL SEVERE WEATHER THREAT ACROSS EAST CENTRAL OK
   INTO ADJACENT NWRN AR APPEARS TO BE DIMINISHING.

   DISCUSSION...AT 0130Z...REGIONAL RADAR IMAGERY SHOWED A CLUSTER OF
   STRONG-SEVERE STORMS MOVING FROM NORTH CENTRAL INTO NERN TX...FROM
   COLLIN COUNTY TO DELTA/NWRN HOPKINS COUNTIES.  THE AIR MASS
   EXTENDING EWD INTO THE ARKLATEX IS REMAINS MODERATELY-STRONGLY
   UNSTABLE WITH EFFECTIVE BULK SHEAR STRENGTHENING IN EXCESS OF 50-60
   KT AS SWLY 500 MB WINDS STRENGTHEN WITH THE APPROACH OF THE UPPER
   TROUGH.  SHV WSR-88D VWP SHOWED SOME WEAKNESS BETWEEN 2-3 KM
   AGL...BUT LOW LEVEL SHEAR IS SUPPORTIVE OF ROTATION.  NORTH CENTRAL
   TX STORMS WILL CONTINUE TO POSE A THREAT FOR ALL SEVERE HAZARDS AS
   THEY TRACK EWD.  ADDITIONAL STRONG-SEVERE STORMS SHOULD DEVELOP THIS
   EVENING INTO THE OVERNIGHT AS THE COLD FRONT ADVANCES SEWD.

   ..PETERS/THOMPSON.. 04/04/2014


   ATTN...WFO...JAN...LZK...LCH...SHV...TSA...HGX...FWD...OUN...

   LAT...LON   32429779 34059634 35539531 35969443 35969364 35069402
               34459441 33789319 33129194 31369188 31149393 31949696
               32429779 

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Page last modified: April 04, 2014
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