062  
ACUS11 KWNS 130240  
SWOMCD  
SPC MCD 130239  
WIZ000-MNZ000-IAZ000-SDZ000-130415-  
 
MESOSCALE DISCUSSION 1049  
NWS STORM PREDICTION CENTER NORMAN OK  
0939 PM CDT THU JUL 12 2018  
 
AREAS AFFECTED...SOUTHERN MN INTO CENTRAL WI  
 
CONCERNING...SEVERE THUNDERSTORM WATCH 274...275...  
 
VALID 130239Z - 130415Z  
 
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 274, 275  
CONTINUES.  
 
SUMMARY...A FEW STRONG WIND GUSTS MAY BE POSSIBLE FOR ANOTHER HOUR  
OR TWO AS GRADUAL WEAKENING TREND ENSUES THIS EVENING. ADDITIONAL  
DOWNSTREAM WATCHES ARE NOT EXPECTED.  
 
DISCUSSION...PORTIONS OF THE LINE OF STORMS TRACKING EAST/SOUTHEAST  
ACROSS WESTERN INTO CENTRAL WI HAVE WEAKENED THIS EVENING. EMBEDDED  
CELLS OCCASIONALLY HAVE INCREASED IN INTENSITY, BUT OVERALL TRENDS  
SUGGEST STORMS ARE STRUGGLING TO MAINTAIN INTENSITY AS BOUNDARY  
LAYER STABILIZATION CONTINUES DUE TO LOSS OF HEATING AND AS STORMS  
SHIFT AWAY FROM STRONGER DEEP LAYER SHEAR. WHILE SOME STRONG GUSTS  
MAY PERSIST ANOTHER HOUR OR TWO, DOWNSTREAM WATCHES ARE NOT EXPECTED  
AND EXISTING WATCH MAY BE CANCELED PRIOR TO EXPIRATION.  
 
..LEITMAN.. 07/13/2018  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
 
 
ATTN...WFO...GRB...MKX...ARX...MPX...DMX...FSD...  
 
LAT...LON 43539174 43309620 43389656 43759617 45349011 45238885  
44778859 44168887 43658986 43539174  
 
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