004  
FXUS64 KLCH 231122  
AFDLCH  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE LAKE CHARLES LA  
622 AM CDT WED SEP 23 2026  
   
..NEW AVIATION
 
 
   
KEY MESSAGES
 
 
-CHANCE OF A FEW SHOWERS AND THUNDERSTORMS THIS AFTERNOON ALONG AND  
SOUTH OF THE HWY90 CORRIDOR  
 
-A WEAK FRONTAL BOUNDARY WILL MOVE THROUGH THE REGION WEDNESDAY  
NIGHT INTO THURSDAY MORNING  
 
-COOLER-FEELING AND DRIER AIRMASS WILL ARRIVE AND PERSIST INTO THE  
WEEKEND. NEXT SIGNIFICANT CHANCE OF RAIN EARLY NEXT WEEK.  
 

 
   
DISCUSSION
 
 
(TONIGHT THROUGH NEXT TUESDAY)  
ISSUED AT 1123 PM CDT TUE SEP 22 2026  
 
SATELLITE IMAGERY AND ISOBAR ANALYSIS INDICATES HIGH PRESSURE  
MOVING IN OVERHEAD. THIS SHOULD ONLY AMOUNT TO MUCH TODAY AS WE  
EXPERIENCE A TYPICAL SUMMERTIME DAY. HIGHS IN THE 90S WITH  
HUMIDITY DRIVING REAL-FEEL TEMPS INTO THE LOWER 100S.  
 
BEYOND WEDNESDAY, A DRY COOL FRONTAL BOUNDARY DROPS INTO THE  
REGION BRINGING US A SWEET TASTE OF FALL. WHILE TEMPERATURES  
THEMSELVES WILL STALL IN THE LOWER 90S, A FAR CRY FROM SWEATER  
WEATHER, THE LOWER DEWPOINTS WILL HAVE CONDITIONS FEELING NICE AND  
COOL ONCE WE NEAR SUNDOWN. THE BETTER FEELING WEATHER WILL HANG  
AROUND THROUGH THE END OF THE WEEK, BUT WILL START TO MODERATE  
INTO THE WEEKEND. NO NOTABLE RAIN CHANCES THROUGH THE START OF  
EARLY NEXT WEEK, BUT WE WILL FEEL THE SLOW RETURN OF HUMIDITY  
THROUGH THE WEEKEND.  
 
AS MENTIONED, HUMIDITY WILL BE ON THE RISE OVER THE WEEKEND AHEAD  
OF THE NEXT CHANCE OF RAIN NEXT WEEK. LOOKS LIKE A TRADITIONAL  
FRONTAL PASSAGE MAY BE ON THE BOOKS TO START THE WORK WEEK. TOO  
EARLY TO SAY MUCH TONIGHT, BUT WE'LL BE WORKING OUT THOSE DETAILS  
IN THE COMING DAYS.  
 
11/CALHOUN  
 

 
   
AVIATION
 
 
(12Z TAFS)  
ISSUED AT 604 AM CDT WED SEP 23 2026  
 
HIGH PRESSURE WILL KEEP OUR SKIES MOSTLY CLEAR WITH VFR CONDITIONS  
FOR THE TAF PERIOD. WINDS WILL BE LIGHT AND VARIABLE.  
 

 
   
MARINE
 
 
ISSUED AT 1123 PM CDT TUE SEP 22 2026  
 
HIGH PRESSURE IS RIDGING IN OVER THE REGION WITH LIGHT VARIABLE  
WINDS ANTICIPATED WEDNESDAY. A WEAK DRY FRONTAL PASSAGE MOVES  
THROUGH LATE WEDNESDAY INTO EARLY THURSDAY WITH A PERIOD OF  
SLIGHTLY ELEVATED OFFSHORE WINDS ANTICIPATED THURSDAY MORNING.  
SMALL CRAFT SHOULD EXERCISE CAUTION WITH ELEVATED WINDS. ADVISORY  
CRITERIA IS NOT EXPECTED.  
 
WINDS TURN ONSHORE BUT REMAIN LOW INTO THE REMAINDER OF THE WEEK.  
 

 
   
FIRE WEATHER
 
 
ISSUED AT 1123 PM CDT TUE SEP 22 2026  
 
ONE MORE RATHER HUMID AND WARM DAY IS IN STORE WITH HIGH PRESSURE  
RIGHT OVERHEAD. SCATTERED SEABREEZE SHOWERS, PRIMARILY ALONG AND  
SOUTH OF THE I-10 CORRIDOR, ARE POSSIBLE. A DRY FRONTAL PASSAGE  
THEN OCCURS LATE WEDNESDAY INTO THURSDAY WITH AN ARRIVAL OF  
SIGNIFICANTLY DRIER, AND PERHAPS COOLER, AIR TO ARRIVE ON  
THURSDAY. COOLER AND DRIER CONDITIONS WILL THEN PERSIST INTO THE  
WEEKEND WITH MINIMUM RH VALUES 30 TO 40 PERCENT.  
 

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

 
 

 
 
PUBLIC/FIRE/MARINE...11  
AVIATION...14  
 
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