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Mesoscale Discussion 1488
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   MESOSCALE DISCUSSION 1488
   NWS STORM PREDICTION CENTER NORMAN OK
   0355 PM CDT SUN JUL 27 2014

   AREAS AFFECTED...MUCH OF LOWER MI...NERN IND...FAR NWRN OH

   CONCERNING...SEVERE THUNDERSTORM WATCH 446...

   VALID 272055Z - 272200Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 446
   CONTINUES.

   SUMMARY...NUMEROUS TSTMS ARE ONGOING ACROSS LOWER MI AND N-CNTRL
   IND...WITH SEVERAL EXHIBITING THE POTENTIAL FOR PRODUCING LARGE HAIL
   AND DMGG WIND GUSTS. THREAT SHOULD DECREASE FROM THE W IN THE WAKE
   OF A COLD FRONT ACROSS IND PORTION OF THE WATCH...WHILE ADDITIONAL
   STRONG STORMS WILL MOVE ONSHORE FROM LM INTO WRN LOWER MI THE NEXT
   1-2 HRS.

   DISCUSSION...NUMEROUS /MOSTLY DISCRETE/ STORMS...INCLUDING
   SUPERCELLS...ARE CURRENTLY ONGOING ACROSS LOWER MI AND NERN IND.
   CONVECTIVE DEVELOPMENT IS GENERALLY FOCUSED NEAR A SFC LOW OVER
   CNTRL MI...AND ALONG/AHEAD OF AN ATTENDANT COLD FRONT PROGRESSING
   EWD ACROSS CNTRL IND AND WRN LOWER MI. SEVERAL REPORTS OF LARGE HAIL
   /UP TO GOLFBALL SIZE/ HAVE BEEN ASSOCIATED WITH THESE STORMS...AS
   WELL AS STRONG TO MARGINALLY SVR WIND GUSTS. THESE WILL REMAIN THE
   PRIMARY THREATS THROUGH THE EARLY EVENING AS ACTIVITY GENERALLY
   SHIFTS EWD. 

   TSTM POTENTIAL DECREASES RAPIDLY IN THE WAKE OF THE COLD FRONT OVER
   CNTRL IND...WHERE MUCH DRIER AIR IS ADVECTING EWD. ACROSS LOWER
   MI...ADDITIONAL STRONG STORMS HAVE DEVELOPED W OF THE COLD FRONT IN
   ASSOCIATION WITH MIDLEVEL COLD POCKET ACCOMPANYING AN INTENSE UPPER
   TROUGH. WHILE SVR POTENTIAL WITH THIS ACTIVITY MAY BE SOMEWHAT
   REDUCED IN THE PRESENCE OF COOLER SFC TEMPERATURES AND DRIER
   LOW-LEVEL AIR...A THREAT FOR HAIL AND STRONG WIND GUSTS MAY STILL
   EXIST.

   ..ROGERS.. 07/27/2014


   ATTN...WFO...CLE...ILN...DTX...APX...IWX...GRR...IND...

   LAT...LON   40658393 40658477 40408506 40578619 41328623 43398553
               43928506 44098390 43918277 43388224 42768236 41848321
               41748380 40658393 

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Page last modified: July 27, 2014
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