426  
FXUS64 KSHV 220414  
AFDSHV  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE SHREVEPORT LA  
1114 PM CDT THU SEP 21 2017  
   
AVIATION
 
 
VERY LITTLE CHANGE TO THE 06Z TAF PACKAGE FROM THE EARLIER 00Z  
PACKAGE. IR SATELLITE IMAGERY LATE THIS EVENING SHOWING THINNING  
CIRRUS ACROSS NORTHEAST TEXAS INTO NORTHWEST LOUISIANA FROM  
EARLIER CONVECTION. PRESSURE GRADIENT AT THE SURFACE AND IN THE  
BOUNDARY LAYER IS NOT AS TIGHT TONIGHT COMPARED TO THE LAST  
SEVERAL NIGHTS AND THIS COULD RESULT IN A DISRUPTION IN THE  
STATUS MACHINE THE TERMINALS HAVE BEEN DEALING WITH THE LAST  
SEVERAL MORNINGS. HAVE INSERTED TEMPO GROUPS WITH MVFR/IFR  
CEILINGS TOWARDS SUNRISE ACROSS MOST LOCATIONS INSTEAD OF  
PREVAILING CONDITIONS. OTHERWISE, CU FIELD WILL DEVELOP ONCE AGAIN  
FRIDAY MORNING WITH BRIEF MVFR CEILINGS DURING THE MID MORNING  
HOURS BEFORE WE SEE CLOUDS SCATTER OUT.  
 
13  
 

 
   
PREV DISCUSSION
 
/ISSUED 1002 PM CDT THU SEP 21 2017/  
 
DISCUSSION...  
CONVECTION HAS ALL DIMINISHED THIS EVENING WITH JUST SOME LEFTOVER  
DEBRIS CIRRUS ACROSS EAST TEXAS AND NORTH LOUISIANA WITH MUCH LESS  
COVERAGE FARTHER NORTH. EXPECT THIS CIRRUS TO THIN OVERNIGHT WITH  
LOW STRATUS DEVELOPING ONCE AGAIN SOUTH OF I-20 PRIOR TO DAYBREAK.  
LIGHT TO NEAR CALM WINDS WILL ALSO BE CONDUCIVE FOR SOME PATCHY  
FOG, ESPECIALLY WHERE RAINFALL OCCURRED EARLIER THIS EVENING BUT  
COVERAGE IS EXPECTED TO BE SPARSE SO HAVE NOT INCLUDED FOG WORDING  
IN THE ZONES FOR TONIGHT. OTHERWISE, NO OTHER CONCERNS TO NOTE FOR  
TONIGHT AND NO CHANGES ARE NEEDED FOR THIS EVENING UPDATE. WILL  
RESEND FRESH ZONE PACKAGE WITHOUT MENTION OF ANY CONVECTION. NEW  
PRODUCTS WILL BE OUT SHORTLY.  
 
/19/  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
SHV 73 94 72 93 / 20 10 0 20  
MLU 72 94 71 92 / 0 20 10 20  
DEQ 71 91 69 91 / 0 10 0 10  
TXK 72 92 71 92 / 10 10 0 10  
ELD 70 92 69 91 / 0 10 0 20  
TYR 73 92 72 92 / 20 10 0 10  
GGG 73 92 71 93 / 20 10 0 10  
LFK 73 92 72 92 / 20 10 10 20  
 

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

 
 

 
 
19/13  
 
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