795  
FXUS64 KLCH 250448  
AFDLCH  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LAKE CHARLES LA  
1148 PM CDT TUE APR 24 2018  
   
DISCUSSION
 
 
FOR 06Z TAF ISSUANCE.  
 

 
   
AVIATION
 
 
NO CHANGES TO PREVIOUS TAF THINKING THROUGH 00Z. DID INSERT VCSH  
AT THE SRN TERMINALS AFTER 26/02Z...26/00Z AND PROB30 FOR  
KAEX...AS SHOWERS DEVELOP AHEAD OF THE APPROACHING STORM SYSTEM  
ALOFT.  
 
25  
 

 
   
PREV DISCUSSION
 
/ISSUED 1028 PM CDT TUE APR 24 2018/  
 
DISCUSSION...FORECAST LOOKS GOOD. NO UPDATE NEEDED.  
 
PREV DISCUSSION... /ISSUED 739 PM CDT TUE APR 24 2018/  
 
DISCUSSION...  
FOR 00Z TAF ISSUANCE.  
 
AVIATION...  
DIURNAL FAIR WEATHER CU WHICH DEVELOPED EARLIER IS DISSIPATING  
WITH LOSS OF HEATING, WITH LINGERING CLOUD COVER BEING ONLY CIRRUS  
FROM EPAC MOISTURE SPILLING OVER THE WEAK SRN PLAINS RIDGING.  
LEAVING BEHIND A CLEAR OVERNIGHT. WINDS SHOULD DECOUPLE WITH SFC  
HIGH PRESSURE NEARBY...GRADUALLY SHIFTING TO A SWRLY DIRECTION BY  
TOMORROW MORNING AS THE HIGH SLIDES EWD. BEST SHOT AT RESTRICTIONS  
TO VISIBILITY LATE TONIGHT AGAIN LOOKS TO BE KAEX WHERE PROGGED  
TEMP/DEW POINT SPREAD WILL BE LEAST...OTHERWISE VFR CONDITIONS  
WILL CONTINUE TO PREVAIL THROUGH THE PERIOD WITH LIMITED MOISTURE  
ON HAND.  
 
25  
 
PREV DISCUSSION... /ISSUED 302 PM CDT TUE APR 24 2018/  
 
DISCUSSION...HIGH PRESSURE IS OVER THE AREA WHILE AN UPPER LEVEL  
LOW IS OVER THE CENTRAL APPALACHIANS PROVIDING A DRY NORTHWEST  
FLOW ALOFT. ANOTHER UPPER DISTURBANCE IS MOVING SOUTHEAST ACROSS  
THE ROCKIES.  
 
THESE CONDITIONS WILL REMAIN IN PLACE THROUGH TONIGHT, HOWEVER THE  
SURFACE RIDGE WILL MOVE TO THE EAST OF THE AREA WEDNESDAY MORNING  
WHICH WILL BEGIN THE RETURN FLOW.  
 
ALSO TOMORROW, THE DISTURBANCE OVER THE ROCKIES WILL MOVE INTO  
THE PLAINS THEN ACROSS THE SOUTH WEDNESDAY NIGHT. THIS WILL ALLOW  
ANOTHER FRONT TO PUSH THROUGH WITH HIGH PRESSURE BUILDING BACK IN  
FOR THURSDAY. ISOLATED TO SCATTERED SHOWERS AND A FEW STORMS WILL  
BE POSSIBLE, HOWEVER INSTABILITY AND MOISTURE WILL BE FAIRLY  
LACKING.  
 
ANOTHER UPPER DISTURBANCE AND WEAK FRONT WILL PASS FRIDAY WHICH  
WILL SET UP DRY AND MILD CONDITIONS FOR THE WEEKEND.  
 
MARINE...LIGHT TO MODERATE WINDS ARE EXPECTED ACROSS THE COASTAL  
WATERS THROUGH THE WEEKEND, HOWEVER WEST WINDS WILL INCREASE TO  
NEAR 20 KNOTS THURSDAY MORNING AS HIGH PRESSURE BUILDS IN. WINDS  
WILL THEN DECREASE THROUGH THURSDAY.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
AEX 56 82 56 76 / 0 10 50 10  
LCH 59 82 59 77 / 0 10 30 20  
LFT 59 82 61 77 / 0 0 30 20  
BPT 61 82 59 78 / 0 10 30 20  
 

 
   
LCH WATCHES/WARNINGS/ADVISORIES
 
 
LA...NONE.  
TX...NONE.  
GM...NONE.  

 
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab LA Page
The Nexlab TX Page Main Text Page