127  
ACUS11 KWNS 182146  
SWOMCD  
SPC MCD 182145  
NEZ000-KSZ000-COZ000-182345-  
 
MESOSCALE DISCUSSION 2308  
NWS STORM PREDICTION CENTER NORMAN OK  
0445 PM CDT FRI SEP 18 2026  
 
AREAS AFFECTED...EASTERN COLORADO INTO SOUTHWESTERN NEBRASKA AND  
NORTHWESTERN KANSAS  
 
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY  
 
VALID 182145Z - 182345Z  
 
PROBABILITY OF WATCH ISSUANCE...5 PERCENT  
 
SUMMARY...ISOLATED WIND AND HAIL RISK MAY CONTINUE INTO THE EVENING.  
 
DISCUSSION...ISOLATED SUPERCELLS HAVE DEVELOPED WITHIN THE UPSLOPE  
REGIME SOUTH OF A STATIONARY FRONT ACROSS EASTERN COLORADO. STORM  
COVERAGE WILL CONTINUE TO INCREASE AS FORCING FOR ASCENT OVERSPREADS  
THE REGION FROM THE WESTERN TROUGH. MOISTURE ACROSS EASTERN COLORADO  
REMAINS SOMEWHAT LIMITED, WITH DEW POINTS IN THE LOW TO MID-50S F  
AND AROUND 250-500 J/KG OF MLCAPE. NONETHELESS, STEEP LOW TO  
MID-LEVEL LAPSE RATES MAY SUPPORT A FEW INSTANCES OF HAIL AND WIND.  
HIGHER THETA-E AIR IS IN PLACE ACROSS PORTIONS OF WESTERN KANSAS AND  
NEBRASKA. AS STORMS TEND TO CLUSTER AND MOVE EASTWARD THROUGH THE  
EVENING, SOME DAMAGING WIND POTENTIAL MAY SPREAD EASTWARD. OVERALL,  
THIS THREAT LOOKS TO REMAIN TOO ISOLATED FOR WATCH ISSUANCE.  
 
..THORNTON/HART.. 09/18/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...GID...LBF...GLD...PUB...BOU...  
 
LAT...LON 39510384 40290317 40760236 40980173 41100114 41080073  
40950037 40710010 39879992 39360023 38800113 38700145  
38630200 38590251 38630303 38690331 38760356 38810363  
39510384  
 
MOST PROBABLE PEAK WIND GUST...UP TO 60 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