918  
ACUS11 KWNS 151900  
SWOMCD  
SPC MCD 151859  
KSZ000-OKZ000-TXZ000-152100-  
 
MESOSCALE DISCUSSION 2300  
NWS STORM PREDICTION CENTER NORMAN OK  
0159 PM CDT TUE SEP 15 2026  
 
AREAS AFFECTED...TX PANHANDLE INTO CENTRAL KS  
 
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY  
 
VALID 151859Z - 152100Z  
 
PROBABILITY OF WATCH ISSUANCE...20 PERCENT  
 
SUMMARY...THUNDERSTORM COVERAGE INCREASING OVER NEXT 1-2 HOURS.  
SPORADIC STRONG GUSTS ARE POSSIBLE, WITH SOME LOCALLY GREATER RISK  
FOR A COUPLE OF GUSTS TO 50-65 MPH FROM NORTHWEST OKLAHOMA INTO  
SOUTH-CENTRAL/EAST-CENTRAL KANSAS. OVERALL RISK APPEARS LIMITED, AND  
A WATCH IS NOT CURRENTLY EXPECTED.  
 
DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE OVER  
THE NEXT 1-2 HOURS, FIRST ACROSS PORTIONS OF NORTHWEST OK INTO  
CENTRAL KS, AND LATER THIS AFTERNOON WITH SOUTHWEST EXTENT INTO THE  
TX PANHANDLE. CONVECTIVE INITIATION IS MOST IMMINENT ACROSS  
SOUTH-CENTRAL KS WHERE DEEPENING CUMULUS AND RECENT LIGHTNING  
ACTIVITY IS NOTED. THIS ACTIVITY IS DEVELOPING WITHIN A MODESTLY  
UNSTABLE BOUNDARY LAYER IN THE VICINITY OF A PRE-FRONTAL  
TROUGH/REMNANT OUTFLOW. THIS AREA IS ON THE SOUTHERN FRINGE OF  
STRONGER EFFECTIVE SHEAR FOCUSED NEAR/NORTH OF A SURFACE COLD FRONT  
ORIENTED ACROSS NORTHERN/CENTRAL KS INTO THE NORTHERN TX PANHANDLE.  
THIS COULD PROVIDE SUFFICIENT SUPPORT TRANSIENT ORGANIZED CELLS AND  
MULTICELLS.  
 
AREAS OF STRONG HEATING HAVE ALLOWED TEMPERATURES TO WARM INTO THE  
90S, SUPPORTING VERY STEEP LOW-LEVEL LAPSE RATES. WHILE THE  
THERMODYNAMIC AND KINEMATIC PARAMETER SPACE IS EXPECTED TO REMAIN  
MODEST, THE WELL-MIXED BOUNDARY LAYER AND STEEP LOW-LEVEL LAPSE  
RATES COULD SUPPORT SPORADIC STRONG WIND GUSTS. OVERALL SEVERE  
POTENTIAL APPEARS LIMITED/TRANSIENT AND A SEVERE THUNDERSTORM WATCH  
IS NOT CURRENTLY ANTICIPATED.  
 
..LEITMAN/HART.. 09/15/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
 
 
ATTN...WFO...TOP...ICT...OUN...DDC...LUB...AMA...  
 
LAT...LON 34500252 34710258 35030239 35570183 36500082 37729920  
38479741 38749652 38679612 38439594 38189591 37879602  
37599635 36889769 35589973 34220109 33940165 33910219  
34240239 34500252  
 
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH  
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN  
 
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