656  
ACUS11 KWNS 170714  
SWOMCD  
SPC MCD 170713  
KYZ000-INZ000-170915-  
 
MESOSCALE DISCUSSION 2009  
NWS STORM PREDICTION CENTER NORMAN OK  
0213 AM CDT MON AUG 17 2026  
 
AREAS AFFECTED...SOUTHERN IN INTO PARTS OF NORTHERN KY  
 
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY  
 
VALID 170713Z - 170915Z  
 
PROBABILITY OF WATCH ISSUANCE...20 PERCENT  
 
SUMMARY...LOCALLY DAMAGING WIND IS POSSIBLE THROUGH THE EARLY  
MORNING.  
 
DISCUSSION...A SMALL MCS HAS RECENTLY SHOWN SOME SIGNS OF INCREASED  
INTENSITY AND ORGANIZATION AS IT APPROACHES NORTHWEST KY EARLY THIS  
MORNING. WHILE LAPSE RATES ARE GENERALLY WEAK, RICH MOISTURE (WITH  
PW NEAR/ABOVE 2 INCHES) IS HELPING TO MAINTAIN MODERATE BUOYANCY IN  
ADVANCE OF THIS SYSTEM, WITH SUFFICIENT DEEP-LAYER FLOW FOR SOME  
STORM ORGANIZATION. THE GENERALLY UNIDIRECTIONAL WESTERLY FLOW  
ABOVE THE SURFACE (WITH SOME INCREASE IN 1-3 KM AGL FLOW NOTED IN  
REGIONAL VWPS) WILL CONTINUE TO BE FAVORABLE FOR AN EASTWARD-MOVING  
MCS THROUGH THE EARLY MORNING HOURS.  
 
THE POOR LOW-LEVEL LAPSE RATES MAY CONTINUE TO MITIGATE THE  
SEVERE-WIND THREAT TO SOME EXTENT, THOUGH A SEVERE GUST WAS RECENTLY  
OBSERVED WITHIN A SEPARATE AREA OF CONVECTION ACROSS SOUTHERN IN. AT  
LEAST ISOLATED WIND-DAMAGE POTENTIAL IS EXPECTED TO SPREAD EASTWARD  
THROUGH THE EARLY MORNING, ESPECIALLY NEAR/SOUTH OF AN OUTFLOW  
BOUNDARY NEAR THE IN/KY BORDER, WHERE WARMER SURFACE TEMPERATURES  
REMAIN IN PLACE. EVENTUALLY, DECREASING BUOYANCY AND INCREASING  
INHIBITION WITH TIME AND EASTWARD EXTENT IS EXPECTED TO LEAD TO A  
WEAKENING TREND  
 
..DEAN/MOSIER.. 08/17/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...LMK...PAH...  
 
LAT...LON 38448728 38468605 38458525 38078512 37788523 37588542  
37428559 37408606 37518698 37648770 37888750 38028733  
38448728  
 
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
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