769  
ACUS11 KWNS 092241  
SWOMCD  
SPC MCD 092241  
NEZ000-SDZ000-COZ000-WYZ000-100045-  
 
MESOSCALE DISCUSSION 1883  
NWS STORM PREDICTION CENTER NORMAN OK  
0541 PM CDT SUN AUG 09 2026  
 
AREAS AFFECTED...EASTERN WYOMING INTO PORTIONS OF WESTERN AND  
CENTRAL NEBRASKA  
 
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE  
 
VALID 092241Z - 100045Z  
 
PROBABILITY OF WATCH ISSUANCE...40 PERCENT  
 
SUMMARY...THUNDERSTORMS TO INCREASE IN COVERAGE AND SPREAD WESTWARD  
THIS EVENING WITH POTENTIAL FOR DAMAGING WINDS.  
 
DISCUSSION...THUNDERSTORM DEVELOPMENT IS INCREASING ACROSS POTIONS  
OF EASTERN WYOMING INTO WESTERN NEBRASKA OVER THE LAST HOUR. THE 18Z  
RAOB FROM LBF SHOWS STOUT MLCIN IN PLACE, WHICH IS STILL DEPICTED BY  
SPC MESOANALYSIS. HOWEVER, WITH DAYTIME HEATING CIN HAS WEAKENED  
ACROSS THE NEBRASKA PANHANDLE WHERE TEMPERATURES ARE IN THE MID TO  
UPPER 90S. DEW POINTS IN THE 40S-50S F ARE CONTRIBUTING TO LARGE  
TEMPERATURE/DEW POINT SPREADS ACROSS THE NEBRASKA PANHANDLE. STEEP  
LOW TO MID-LEVEL LAPSE RATES ARE ALSO NOTED ACROSS THE REGION.  
GUIDANCE IS INCONSISTENT WITH THE EVOLUTION OF STORMS OUT OF  
WYOMING, WITH SOME FAVORING A MORE ORGANIZED CLUSTER WITH DAMAGING  
WIND POTENTIAL AND OTHERS FAVORING A WEAKENING CLUSTER WITH EASTWARD  
PROPAGATION. THIS LEADS TO LOW CONFIDENCE IN EVOLUTION AND WATCH  
POTENTIAL AT THIS TIME. SHOULD A CLUSTER EVOLVE, DAMAGING WIND  
POTENTIAL (PERHAPS 75+ MPH) WOULD INCREASE DOWNSTREAM. TRENDS WILL  
BE MONITORED AND A WATCH MAY BE POSSIBLE.  
 
..THORNTON/MOSIER.. 08/09/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...GID...LBF...UNR...BOU...CYS...  
 
LAT...LON 42779982 42950040 43080193 43070392 42970403 42440434  
41940433 41340358 40400182 40400060 40959974 41979952  
42729973 42779982  
 
MOST PROBABLE PEAK WIND GUST...65-80 MPH  
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab SPC Page
Main Text Page