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Mesoscale Discussion 676
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   MESOSCALE DISCUSSION 0676
   NWS STORM PREDICTION CENTER NORMAN OK
   0847 PM CDT SAT MAY 16 2015

   AREAS AFFECTED...CENTRAL THIRD OF OKLAHOMA

   CONCERNING...TORNADO WATCH 177...

   VALID 170147Z - 170315Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 177 CONTINUES.

   SUMMARY...SEVERE/ISOLATED TORNADO RISK CONTINUES.

   DISCUSSION...LATEST RADAR LOOP SHOWS STORMS GRADUALLY EVOLVING INTO
   MORE OF A COMPLEX LINE ...THOUGH EMBEDDED CIRCULATIONS PERSIST IN
   SOME AREAS.  THE STRONGEST SUPERCELLULAR STRUCTURES ATTM REMAIN ON
   THE SRN PORTION OF THE BAND NEAR THE RED RIVER N/NE OF WICHITA
   FALLS...WHERE TWO PROMINENT LOW-LEVEL MESOCYCLONES ARE INDICATED --
   ONE IN COTTON CO OK AND THE OTHER CROSSING INTO FAR NWRN CLAY CO TX.

   OVERALL...EXPECT RISK TO GRADUALLY TRANSITION TOWARD A DAMAGING
   WIND/HAIL RISK...THOUGH ISOLATED -- BRIEFLY STRONG -- TORNADOES
   REMAIN LIKELY GIVEN BACKGROUND SHEAR PROFILES HIGHLY SUPPORTIVE OF
   LOW-LEVEL ROTATION.

   ..GOSS.. 05/17/2015


   ATTN...WFO...TSA...ICT...FWD...OUN...

   LAT...LON   33919821 34049856 37009745 36949670 34789623 33779642
               33919821 

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Page last modified: May 17, 2015
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