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Mesoscale Discussion 1233
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   MESOSCALE DISCUSSION 1233
   NWS STORM PREDICTION CENTER NORMAN OK
   0449 PM CDT MON JUN 29 2015

   AREAS AFFECTED...EAST-CENTRAL AND SOUTHEAST MN INTO WEST-CENTRAL WI

   CONCERNING...SEVERE THUNDERSTORM WATCH 370...

   VALID 292149Z - 292315Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 370
   CONTINUES.

   SUMMARY...LARGE HAIL AND SOME STRONG WIND GUSTS WILL CONTINUE TO BE
   POSSIBLE WITH STORMS TRACKING SOUTHWARD ACROSS SOUTHEAST MN AND
   WESTERN WI.

   DISCUSSION...MODEST DESTABILIZATION HAS OCCURRED ACROSS THE AREA
   THIS AFTERNOON WITH SURFACE DEW POINTS IN THE LOW TO MID 60S. A
   COMPLEX OF STRONG STORMS FROM EAST-CENTRAL MN INTO WESTERN WI WILL
   CONTINUE TO TRACK SOUTHWARD ALONG A WEAK CONFLUENCE/DIFFERENTIAL
   HEATING ZONE. ACROSS WESTERN PORTIONS OF THE WATCH AREA...THICK
   SMOKE FROM CANADIAN WILDFIRES WAS EVIDENT IN VIS SAT IMAGERY. THIS
   MAY BE HAVING AN IMPACT ON DEVELOPMENT FURTHER WEST DUE TO DECREASED
   HEATING AND AS A RESULT SOME SURFACE BASED INHIBITION. THE THICK
   SMOKE IS ALSO MAKING IT DIFFICULT TO DISCERN ANY LOW LEVEL CUMULUS
   DEVELOPMENT. DESPITE THIS UNCERTAINTY IN CONVECTIVE
   POTENTIAL/COVERAGE OVER WESTERN PORTIONS OF THE WATCH
   AREA...CONDITIONS STILL REMAIN FAVORABLE FOR SEVERE HAIL AND SOME
   STRONG WIND GUSTS...ESPECIALLY FROM E-CENTRAL MN INTO FAR SOUTHEAST
   MN AND W-CENTRAL WI AHEAD OF THE SOUTHWARD ADVANCING LINE OF STORMS.

   ..LEITMAN.. 06/29/2015


   ATTN...WFO...GRB...MKX...DLH...ARX...MPX...DMX...FSD...

   LAT...LON   43499403 43529459 43749484 44189497 45589494 45849475
               46089438 46209397 46129306 45689121 45399023 45078933
               44708918 44148924 43698958 43519335 43499403 

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Page last modified: June 29, 2015
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