639  
ACUS01 KWNS 011615  
SWODY1  
SPC AC 011613  
 
DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
1013 AM CST FRI DEC 01 2017  
 
VALID 011630Z - 021200Z  
   
..NO SEVERE THUNDERSTORM AREAS FORECAST
 
 
   
..SUMMARY
 
 
ISOLATED LIGHTNING STRIKES MAY OCCUR TODAY NEAR THE WASHINGTON  
COAST.  
   
..SYNOPSIS
 
 
A LARGELY ZONAL FLOW REGIME PERSISTS ACROSS THE CONUS, WITH LIMITED  
MOISTURE/BUOYANCY GENERALLY PRECLUDING THUNDERSTORM DEVELOPMENT.  
ISOLATED LIGHTNING STRIKES WERE OBSERVED EARLIER THIS MORNING OFF  
THE WA COAST, AND THE THREAT FOR ISOLATED THUNDERSTORMS WILL  
CONTINUE TODAY NEAR AND JUST OFF THE COAST IN ASSOCIATION WITH A  
LEAD SHORTWAVE TROUGH AND WEAK BUOYANCY. OTHERWISE, THE THREAT FOR  
CONVECTION DEEP ENOUGH TO PRODUCE LIGHTNING SHOULD REMAIN ALONG A  
DIFFUSE FRONT OFF THE SOUTHEAST ATLANTIC COAST, WITH THUNDERSTORMS  
NOT EXPECTED INLAND.  
 
..THOMPSON.. 12/01/2017  
 

 
 
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