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Mesoscale Discussion 673
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   MESOSCALE DISCUSSION 0673
   NWS STORM PREDICTION CENTER NORMAN OK
   0714 PM CDT SAT MAY 16 2015

   AREAS AFFECTED...N TX/SRN AND CENTRAL OK

   CONCERNING...TORNADO WATCH 175...177...179...

   VALID 170014Z - 170145Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH
   175...177...179...CONTINUES.

   SUMMARY...SEVERE/TORNADO POTENTIAL -- INCLUDING RISK FOR A FEW
   SIGNIFICANT EVENTS -- CONTINUES.

   DISCUSSION...LATEST RADAR LOOP SHOWS SEVERAL SUPERCELLS ONGOING ATTM
   FROM SWRN OK SWD INTO WRN N TX...EXTENDING ROUGHLY FROM THE WICHITA
   MOUNTAINS VICINITY IN OK TO ROUGHLY ABILENE TX.  WHILE THE LARGEST
   SUPERCELL -- NOW CROSSING WRN COMANCHE CO OK -- HAS SHOWN SOME
   /POSSIBLY TEMPORARY/ WEAKENING OF THE LOW-LEVEL MESOCYCLONE...BUT
   REMAINS A WELL-ORGANIZED STORM CAPABLE OF PRODUCING A STRONG
   TORNADO.

   FARTHER S..SUPERCELLS ACROSS WRN N TX CONTINUE TO GRADUALLY
   INTENSIFY...INCLUDING A CELL IN NERN BAYLOR COUNTY SHOWING AN
   INCREASING LOW-LEVEL MESOCYCLONE.  THIS STORM COULD AFFECT THE
   WICHITA FALLS TX AREA IN THE NEXT HOUR OR SO.

   OVERALL...A VERY MOIST BOUNDARY LAYER REMAINS IN PLACE...ALONG WITH
   UNUSUALLY STRONG/FAVORABLE LOW-LEVEL SHEAR /PER EVENING RAOB AND
   SURFACE DATA/.  THIS ENVIRONMENT REMAINS FAVORABLE FOR
   SIGNIFICANT/POTENTIALLY LONG-TRACK TORNADOES...ALONG WITH DAMAGING
   WINDS AND VERY LARGE HAIL.

   ..GOSS.. 05/17/2015


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

   LAT...LON   32309996 32550027 33539991 34909932 35539729 34979656
               33999637 32799755 32309996 

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Page last modified: May 17, 2015
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