781  
ACUS02 KWNS 141716  
SWODY2  
SPC AC 141714  
 
DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
1214 PM CDT MON SEP 14 2026  
 
VALID 151200Z - 161200Z  
 
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS WITHIN A  
CORRIDOR FROM KANSAS INTO WESTERN OHIO...  
   
..SUMMARY  
 
SCATTERED STRONG THUNDERSTORMS MAY OCCUR FROM THE GREAT LAKES  
SOUTHWESTWARD THROUGH THE LOWER MISSOURI VALLEY TUESDAY AFTERNOON  
AND EVENING, WITH AT LEAST ISOLATED DAMAGING WIND GUSTS POSSIBLE.  
   
..DISCUSSION  
 
A POTENT UPPER TROUGH WILL EJECT OUT OF THE UPPER MS VALLEY/GREAT  
LAKES ON TUESDAY, WITH 20-30 KT MIDLEVEL WINDS TRAILING  
SOUTHWESTWARD TOWARD THE CENTRAL PLAINS. HIGH PRESSURE WILL BUILD  
INTO THE PLAINS BEHIND A COLD FRONT, WHICH WILL EXTEND ROUGHLY FROM  
LOWER MI TO CENTRAL MO TO THE KS/OK BORDER BY 21Z.  
 
MID TO UPPER 60S F DEWPOINTS WILL BE COMMON AHEAD OF THE COLD FRONT,  
WITH AREAS OF 70S F DEWPOINTS FROM THE LOWER MO VALLEY INTO IL/IN.  
STRONG HEATING WILL OCCUR AHEAD OF THIS BOUNDARY, CONTRIBUTING TO  
2000+ J/KG MUCAPE, THOUGH MIDLEVEL LAPSE RATES WILL BE POOR.  
 
EARLY DAY THUNDERSTORMS MAY BE ONGOING FROM NORTHERN KS INTO LOWER  
MI, WITH WEAKENING EXPECTED AS THE UPPER TROUGH LIFTS OUT. HOWEVER,  
REDEVELOPMENT WILL BE LIKELY ALONG THE AGGREGATE FRONT/OUTFLOW AS  
THE AIR MASS DESTABILIZES. STORMS ARE EXPECTED TO BE PRIMARILY  
SHORT-LIVED AS SHEAR WILL BE WEAK. HOWEVER, A FEW CLUSTERS MAY  
DEVELOP NEAR THE FRONT, WITH SOME EASTWARD PROPAGATION AND WIND GUST  
POTENTIAL THROUGH EARLY EVENING.  
 
..JEWELL.. 09/14/2026  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab SPC Page
Main Text Page