527  
ACUS01 KWNS 181616  
SWODY1  
SPC AC 181614  
 
DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
1114 AM CDT SUN OCT 18 2026  
 
VALID 181630Z - 191200Z  
   
..NO SEVERE THUNDERSTORM AREAS FORECAST  
 
   
..SUMMARY  
 
SEVERE THUNDERSTORMS ARE NOT FORECAST THROUGH TONIGHT.  
   
..SYNOPSIS  
 
TRANQUIL CONDITIONS WILL EXIST ACROSS MUCH OF THE CONTIGUOUS UNITED  
STATES THROUGH TONIGHT. EXTENSIVE SURFACE HIGH PRESSURE INFLUENCING  
MUCH OF THE CENTRAL AND EASTERN U.S. WILL FAVOR OFFSHORE FLOW INTO  
THE NORTHERN GULF OF AMERICA AND FEATURE A SEASONABLY DRY/STABLE  
AIRMASS. A FEW WEAK THUNDERSTORMS ARE POSSIBLE OVER SOUTH FL AND  
THE KEYS TO THE NORTH OF A SURFACE FRONT UNDERGOING FRONTOLYSIS  
ACROSS THE SOUTHERN GULF AND FL STRAITS. FARTHER WEST, AN UPPER  
TROUGH MIGRATING NORTHEAST ACROSS THE FOUR CORNERS WILL BE  
ASSOCIATED WITH ISOLATED SHOWERS/THUNDERSTORMS ACROSS PARTS OF THE  
SOUTHWEST.  
 
..SMITH/SUPINIE.. 10/18/2026  
 
 
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