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Mesoscale Discussion 818
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   MESOSCALE DISCUSSION 0818
   NWS STORM PREDICTION CENTER NORMAN OK
   0534 PM CDT WED JUN 04 2014

   AREAS AFFECTED...ERN KY...SRN OH...WRN WV AND FAR WRN VA

   CONCERNING...TORNADO WATCH 218...

   VALID 042234Z - 050030Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 218 CONTINUES.

   SUMMARY...SUPERCELLS WILL BE CAPABLE OF PRODUCING A TORNADO DURING
   THE NEXT FEW HOURS FROM FAR ERN KY INTO SRN OH AND WRN WV.

   DISCUSSION...RADAR SHOWS SEVERAL SUPERCELLS MOVING EWD ACROSS ERN
   KY...FAR SRN OH AND INTO WV AHEAD OF A SURFACE LOW. SWLY LOW-LEVEL
   FLOW IS HELPING TO MAINTAIN INSTABILITY ALONG A DIFFUSE WARM FRONT
   WHERE LOW-LEVEL SHEAR IS ALSO BEING MAXIMIZED WITH AROUND 200-300
   M2/S2 EFFECTIVE SRH. LATEST KRLX RADAR SHOWS MULTIPLE COUPLETS
   ONGOING...SUGGESTING AT A MINIMUM STRONG WINDS DESPITE WEAK HAIL
   CORES.

   ..JEWELL.. 06/04/2014


   ATTN...WFO...RNK...RLX...MRX...JKL...ILN...LMK...

   LAT...LON   37988485 38468410 39188191 39108085 38648054 38098057
               37498103 36868197 36618310 36828376 37118441 37478481
               37988485 

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