402  
ACUS01 KWNS 070036  
SWODY1  
SPC AC 070035  
 
DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0635 PM CST MON NOV 06 2017  
 
VALID 070100Z - 071200Z  
 
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF  
MIDDLE TENNESSEE AND FAR NORTHERN ALABAMA...  
   
..SUMMARY
 
 
ISOLATED THUNDERSTORMS WITH HAIL WILL BE POSSIBLE THIS EVENING INTO  
THE OVERNIGHT IN THE TENNESSEE VALLEY.  
   
..TENNESSEE VALLEY
 
 
WATER VAPOR IMAGERY SHOWS A WESTERLY MID-LEVEL FLOW PATTERN WITH A  
SUBTLE SHORTWAVE TROUGH OVER THE TENNESSEE VALLEY. ISOLATED  
THUNDERSTORMS ARE ONGOING JUST AHEAD OF THE SHORTWAVE TROUGH OVER  
WESTERN AND MIDDLE TENNESSEE. THIS CONVECTION IS LOCATED ON THE  
NORTH SIDE OF A COLD FRONT MAKING IT ELEVATED IN NATURE. FORECAST  
SOUNDINGS SOUTH OF NASHVILLE THIS EVENING SHOW EFFECTIVE SHEAR  
AROUND 50 KT AND STEEP MID-LEVEL LAPSE RATES AROUND 500 MB. THIS MAY  
BE ENOUGH FOR A HAIL THREAT THIS EVENING INTO THE OVERNIGHT PERIOD  
AS THE STORMS MOVE EASTWARD ACROSS SOUTHERN TENNESSEE AND FAR  
NORTHERN ALABAMA.  
 
..BROYLES.. 11/07/2017  
 

 
 
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