917  
ACUS48 KWNS 230750  
SWOD48  
SPC AC 230748  
 
DAY 4-8 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0248 AM CDT FRI OCT 23 2026  
 
VALID 261200Z - 311200Z  
   
..DISCUSSION
 
 
A SERIES OF UPPER TROUGHS WILL MOVE ACROSS PORTIONS OF THE NORTHERN  
AND CENTRAL U.S. DURING THE DAY 4-8 PERIOD. AROUND THE MIDDLE OF THE  
WORK (DAY 6/WED), A LARGER-SCALE UPPER TROUGH IS FORECAST TO DEVELOP  
ACROSS THE PLAINS AND MIDWEST, AND EVENTUALLY THE EASTERN U.S. BY  
THE WEEKEND. AS THIS OCCURS, A COLD FRONT WILL DEVELOP SOUTHEAST  
ACROSS MUCH OF THE CONUS EAST OF THE ROCKIES. WHILE THIS WILL LIKELY  
SUPPORT SOME THUNDERSTORM AND SHOWER ACTIVITY, BOUNDARY LAYER  
MOISTURE WILL REMAIN LIMITED, AND ONLY WEAK INSTABILITY IS FORECAST  
AND WILL LARGELY REMAIN DISPLACED FROM STRONGER DEEP-LAYER FLOW.  
OVERALL, SEVERE POTENTIAL APPEARS LOW THROUGH DAY 8/FRI.  
 
..LEITMAN.. 10/23/2026  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab SPC Page Main Text Page