640  
ACUS11 KWNS 242336  
SWOMCD  
SPC MCD 242336  
NEZ000-SDZ000-250100-  
 
MESOSCALE DISCUSSION 2121  
NWS STORM PREDICTION CENTER NORMAN OK  
0636 PM CDT MON AUG 24 2026  
 
AREAS AFFECTED...PARTS OF WESTERN NE INTO SOUTHWEST SD  
 
CONCERNING...SEVERE THUNDERSTORM WATCH 623...  
 
VALID 242336Z - 250100Z  
 
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 623  
CONTINUES.  
 
SUMMARY...A THREAT FOR HAIL AND LOCALIZED SEVERE GUSTS WILL CONTINUE  
INTO THE EVENING.  
 
DISCUSSION...A SMALL SUPERCELL CLUSTER HAS EVOLVED ACROSS SOUTHERN  
CHERRY COUNTY, WITH OTHER DEVELOPING STORMS NOTED FARTHER SOUTH INTO  
WEST-CENTRAL NE, AND ALSO FARTHER NORTH NEAR THE NE/SD BORDER ALONG  
A SURFACE TROUGH. MLCAPE OF 1500-2500 J/KG AND SUFFICIENT DEEP-LAYER  
SHEAR WILL CONTINUE TO BE FAVORABLE FOR ORGANIZED SEVERE STORMS INTO  
THE EARLY EVENING, WITH A THREAT OF LARGE TO VERY LARGE HAIL. WITH  
CONVECTION TENDING TO REMAIN SEMI-DISCRETE, THE SEVERE-WIND THREAT  
MAY TEND TO BE LOCALIZED, THOUGH FAVORABLE LAPSE RATES WILL SUPPORT  
POTENTIAL FOR ISOLATED 60-75 MPH GUSTS.  
 
COOLER TEMPERATURES AND INCREASING MLCINH WILL TEND TO LIMIT THE  
EASTWARD EXTENT OF THE SEVERE THREAT, THOUGH TRENDS WILL BE  
MONITORED REGARDING THE NEED FOR ANY LOCAL WATCH EXPANSIONS THROUGH  
THE EVENING.  
 
..DEAN.. 08/24/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...GID...LBF...UNR...  
 
LAT...LON 40780190 41840139 42180136 42610180 42910201 43290210  
43620143 43610076 42980019 42249984 41379982 40870007  
40680029 40520071 40460122 40430176 40780190  
 
MOST PROBABLE PEAK WIND GUST...65-80 MPH  
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab SPC Page
Main Text Page