998  
FXUS64 KSHV 121053  
AFDSHV  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE SHREVEPORT LA  
453 AM CST TUE DEC 12 2017  
   
DISCUSSION
 
 
COLD FRONT HAS JUST MOVED SOUTH OF I-20, WITH NW WINDS GUSTING  
NEAR 20 KTS IN ITS WAKE. THE TIMING OF THIS FRONT AND RESULTING  
ISOBARS INDICATE THAT FOR ALL BUT SOUTHERN PORTIONS OF THE AREA,  
NW-N WINDS WILL BE STRONGER IN AFTN THAN MORNING. AS THIS PRESSURE  
GRADIENT RELAXES, WINDS WILL QUICKLY DECOUPLE FOR MOST OF THE AREA  
OVERNIGHT, EXCEPT WHERE PRESSURE GRADIENTS ARE NOTED TO THE WEST  
WITH POSSIBLY A LGT SOUTHERLY BREEZE OVER NE TX BEFORE DAYBREAK.  
NO CLOUDS EXPECTED WITH THIS VERY DRY AIRMASS AND THE SAME MAY BE  
THE CASE WITH ANOTHER WEAKER FRONT PUSHING INTO THE AREA THURSDAY.  
FINALLY, THE FRONT ON SATURDAY IN HIS QUICK SUCCESSION OF  
BOUNDARIES WILL SEE INCREASED UPPR LVL AIR WITH TOP DOWN MOISTURE  
QUICKLY DEEPENING THRU THE MID LVLS. SOME THUNDER MAY BE NOTED  
WITH THIS RAIN ALTHOUGH WEAK LOW LVL LAPSE RATES MAY BE THE  
LIMITING FACTOR. MODEL RUNS SEEM TO BE PUSHING THIS POSSIBLE RAIN  
EVENT UNTIL LATER INTO THE WKND. BIGGEST CONCERN IS LOW HUMIDITIES  
AND GUSTY WINDS ASSOCIATED WITH THE FRQT FRONTAL PASSAGE WITH THE  
WORSENING ONGOING DROUGHT./07/  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
SHV 60 33 63 40 / 0 0 0 0  
MLU 59 32 60 39 / 0 0 0 0  
DEQ 55 29 65 34 / 0 0 0 0  
TXK 56 32 64 38 / 0 0 0 0  
ELD 57 30 61 38 / 0 0 0 0  
TYR 59 35 66 41 / 0 0 0 0  
GGG 59 33 65 40 / 0 0 0 0  
LFK 63 33 62 41 / 0 0 0 0  
 

 
   
SHV WATCHES/WARNINGS/ADVISORIES
 
 
AR...NONE.  
LA...NONE.  
OK...NONE.  
TX...NONE.  

 
 

 
 
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