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Mesoscale Discussion 461
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   MESOSCALE DISCUSSION 0461
   NWS STORM PREDICTION CENTER NORMAN OK
   0522 PM CDT MON APR 28 2014

   AREAS AFFECTED...SRN THROUGH CNTRL AND NERN MS THROUGH NRN AL AND
   SRN MIDDLE TN

   CONCERNING...TORNADO WATCH 108...

   VALID 282222Z - 282345Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 108 CONTINUES.

   SUMMARY...TORNADO OUTBREAK UNDERWAY AND WILL LIKELY CONTINUE INTO AT
   LEAST MID EVENING. SEVERAL INTENSE AND LONG TRACK TORNADOES ARE IN
   PROGRESS ACROSS CNTRL/NERN MS INTO NRN AL. IN ADDITION TO
   TORNADOES...VERY LARGE HAIL AND DAMAGING WIND ARE LIKELY WITH SOME
   OF THE STORMS. ACTIVITY WILL EVENTUALLY DEVELOP INTO SERN TN AND A
   PDS TORNADO WATCH MAY BE ISSUED SOON FOR THAT AREA.

   DISCUSSION...EARLY THIS EVENING A BAND OF STORMS PERSIST FROM SWRN
   THROUGH CNTRL AND NERN MS INTO NRN AL AND SRN MIDDLE TN. MANY OF THE
   STORMS WITH THIS BAND ARE ALONG TRACK SUPERCELLS THAT WILL CONTINUE
   TO PRODUCE INTENSE TORNADOES AT TIMES NEXT FEW HOURS. A
   LARGE...UNSTABLE WARM SECTOR PERSISTS EAST OF THE DEVELOPING STORMS
   ACROSS MS INTO AL...AND SRN TN WITH MLCAPE FROM 1500-2000 J/KG. A
   STRONG 50+ KT SLY LLJ COUPLED WITHIN A MID LEVEL JET ROTATING
   THROUGH BASE OF A LARGE UPPER LOW WILL SHIFT SLOWLY EWD THROUGH THE
   WARM SECTOR...MAINTAINING LARGE 0-1 KM HODOGRAPHS AND 0-6 KM SHEAR
   FOR SUPERCELLS WITH LOW-LEVEL MESOCYCLONES AND TORNADOES. THOUGH
   STORM MODE ALONG PORTIONS OF THE BAND MAY GRADUALLY TRANSITION TO
   PARTIAL LINEAR MODES LATER THIS EVENING...EMBEDDED SUPERCELL
   STRUCTURES WILL REMAIN LIKELY WELL INTO THE OVERNIGHT WITH A
   CONTINUED THREAT FOR TORNADOES.

   ..DIAL.. 04/28/2014


   ATTN...WFO...MRX...FFC...OHX...BMX...HUN...MEG...JAN...

   LAT...LON   35488407 34318648 32208935 32239087 33159008 35528740
               35488407 

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Page last modified: April 28, 2014
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