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Mesoscale Discussion 582
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   MESOSCALE DISCUSSION 0582
   NWS STORM PREDICTION CENTER NORMAN OK
   0106 PM CDT MON MAY 12 2014

   AREAS AFFECTED...NRN IL...SRN WI

   CONCERNING...SEVERE THUNDERSTORM WATCH 149...

   VALID 121806Z - 121900Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 149
   CONTINUES.

   SUMMARY...DAMAGING WIND THREAT WITH A SECONDARY THREAT OF HAIL WILL
   PERSIST ACROSS MAINLY THE SERN PORTIONS OF WW 149. SOME ADDITIONAL
   TSTM DEVELOPMENT IS POSSIBLE ACROSS THE SRN PORTION OF THE WATCH
   /NRN IL/ WITH A THREAT OF MARGINALLY SVR HAIL AND GUSTY WINDS.

   DISCUSSION...TSTM ACTIVITY CONTINUES SEWD ACROSS FAR SE WI AND INTO
   LAKE MI. THIS GENERAL TREND IS EXPECTED TO PERSIST WITH A CONTINUED
   THREAT FOR DAMAGING WINDS AND SOME HAIL. AREA SOUTH OF THIS MAIN
   LINE /NRN IL/ CONTINUED TO WARM WITH TEMPERATURES NOW IN THE UPPER
   70S TO LOW 80S AMIDST DEWPOINTS IN THE UPPER 60S. MESOANALYSIS
   ESTIMATES MLCAPE THROUGHOUT THIS AREA FROM 1500 TO 2000 J PER KG
   WITH NO CINH REMAINING. AS A RESULT...ADDITIONAL TSTM DEVELOPMENT IS
   POSSIBLE SW OF THE CURRENT ACTIVITY ALONG AN OUTFLOW BOUNDARY. THE
   ENVIRONMENT IS SUPPORTIVE OF STRONG TO SVR STORMS WITH PRIMARY
   THREATS OF SVR HAIL AND DAMAGING WINDS.

   ..MOSIER.. 05/12/2014


   ATTN...WFO...GRB...LOT...MKX...DVN...ARX...

   LAT...LON   41668996 43828958 43828720 41678762 41668996 

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Page last modified: May 12, 2014
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