382  
ACUS11 KWNS 202055  
SWOMCD  
SPC MCD 202055  
WVZ000-VAZ000-KYZ000-202230-  
 
MESOSCALE DISCUSSION 0807  
NWS STORM PREDICTION CENTER NORMAN OK  
0355 PM CDT WED MAY 20 2026  
 
AREAS AFFECTED...PORTIONS OF EASTERN KENTUCKY INTO CENTRAL WEST  
VIRGINIA  
 
CONCERNING...SEVERE THUNDERSTORM WATCH 236...  
 
VALID 202055Z - 202230Z  
 
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 236  
CONTINUES.  
 
SUMMARY...THE THREAT FOR DAMAGING WIND GUSTS CONTINUES ACROSS SEVERE  
THUNDERSTORM WATCH 236.  
 
DISCUSSION...LATEST RADAR IMAGERY DEPICTS SEVERAL ONGOING  
THUNDERSTORM CLUSTERS FROM SOUTHERN KENTUCKY NORTHEASTWARD INTO  
WESTERN/CENTRAL WEST VIRGINIA, WITH A COUPLE OF RECENT 1" HAIL  
REPORTS NOTED NORTH OF CHARLESTON, WEST VIRGINIA. CONTINUED DIURNAL  
HEATING HAS SUPPORTED TEMPERATURES WARMING WELL INTO THE 80S F  
ACROSS THE REGION, WHICH IS SUBSEQUENTLY CONTRIBUTING TO 1000-1500  
J/KG MLCAPE. STEEP LOW-LEVEL LAPSE RATES (EXCEEDING 8 C/KM PER  
LATEST OBJECTIVE ANALYSIS) AND DEWPOINT DEPRESSIONS OF 20-25 F  
EVIDENT IN RECENT SURFACE OBSERVATIONS CONTINUE TO PROMOTE AT LEAST  
SOME POTENTIAL FOR DAMAGING WIND GUSTS WITH ONGOING THUNDERSTORMS.  
MODEST EFFECTIVE SHEAR (GENERALLY LESS THAN 30 KTS) AND WEAK  
MID-LEVEL LAPSE RATES WILL LARGELY TEMPER THE THREAT FOR LARGE HAIL,  
BUT ISOLATED SMALL TO MARGINALLY SEVERE HAIL REMAINS POSSIBLE WITH  
THE MOST ROBUST CORES. EXPECTATION IS FOR ONGOING STORMS TO PERSIST  
INTO THIS EVENING BEFORE GRADUALLY DISSIPATING OWING TO LOW-LEVEL  
NOCTURNAL COOLING/STABILIZATION.  
 
..CHALMERS.. 05/20/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
 
 
ATTN...WFO...RNK...RLX...MRX...JKL...  
 
LAT...LON 36968281 36698350 36698380 36948391 37278383 37618341  
38018272 38448196 38548165 38598115 38548078 38368061  
38198061 37888088 37728114 37278204 36968281  
 
MOST PROBABLE PEAK WIND GUST...55-70 MPH  
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN  
 
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