886
FXUS64 KLCH 230455
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1155 PM CDT TUE SEP 22 2026
..NEW DISCUSSION, AVIATION, MARINE, FIRE WEATHER
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
(06Z TAFS)
ISSUED AT 1123 PM CDT TUE SEP 22 2026
HIGH PRESSURE RIDGING IN OVERHEAD WILL KEEP CONDITIONS CALM AND
MOSTLY CLEAR OVERNIGHT. A BRIEF PERIOD OF GROUND FOG WILL BE
POSSIBLE NEAR TERMINALS WHICH HAVE RECEIVED RAIN IN RECENT DAYS,
BUT DENSE FOG IS NOT ANTICIPATED.
HIGH PRESSURE WILL BE MEANDERING OVER THE REGION WEDNESDAY AS
UPPER TROUGH STARTS ITS DECENT FROM THE GREAT LAKES REGION. A FEW
SCATTERED SHOWERS TO ISOLATED THUNDERSTORMS MAY BE ABLE TO SQUEAK
OUT ALONG COASTAL TERMINALS, THUS VICINITY MENTIONS WERE INCLUDED
AT SITES.
11
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...11
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