077
FXUS64 KLCH 271732
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1232 PM CDT WED MAY 27 2026
..NEW DISCUSSION, AVIATION, MARINE, FIRE WEATHER
KEY MESSAGES
- HEAVY RAIN EARLIER IN THE DAY HAS LEAD TO 1 TO 3 INCHES OF
RAINFALL. ADDITIONAL RAIN MAY CAUSE MINOR STREET FLOODING.
- HUMID AND MUGGY WEATHER WILL CONTINUE FOR THE REST OF THE WEEK
AND INTO THE WEEKEND.
- PRECIPITATION CHANCES WILL REMAIN ELEVATED FOR THE REST OF THE
WEEK WITH SCATTERED AFTERNOON STORMS WILL THEN DEVELOP EACH
AFTERNOON.
DISCUSSION
(THIS EVENING THROUGH NEXT TUESDAY)
ISSUED AT 1226 PM CDT WED MAY 27 2026
A LARGE MCS MOVED ACROSS SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA
THIS MORNING BRINGING HEAVY RAIN AND GUSTY WINDS. THANKFULLY WE
HAVE NOT RECEIVED ANY DAMAGE REPORTS BUT WE DID RECORD WIND GUSTS
UP TO 50 MPH FROM STATIONS OFFSHORE. AS THE MCS CONTINUES TO MOVE
INTO EASTERN LOUISIANA THEN MISSISSIPPI WE ARE LOOKING AT MUCH
COOLER CONDITIONS WITH OVERCAST SKIES.
ALOFT THE UPPER-LEVEL PATTERN THAT HAS STARTED TO SHIFT WITH THE
LONGWAVE TROUGH THAT HAS BEEN A FACTOR IN OUR WET WEATHER WILL
FINALLY MOVE TO THE NORTHEAST. IN ITS PLACE IT WILL BE A MORE
NEUTRAL SET UP WITH ZONAL FLOW ALOFT. WITH LESS DYNAMIC SUPPORT
FOR STORM SYSTEMS WE ARE DONE WITH MULTIPLE DAYS OF WIDESPREAD
HEAVY RAIN. WHILE THE UPPER-LEVEL SYNOPTIC PATTERN WILL BE
CHANGING AT THE LOW LEVELS, HIGH PRESSURE OFF THE EASTERN SEABOARD
WILL KEEP OUR WINDS SOUTHERLY. THE SOUTH WINDS WILL CONTINUE TO
PUMP WARM, MOIST GULF AIR INTO THE REGION AND WILL KEEP PWATS WELL
ABOVE NORMAL. INSTEAD THE FORECAST WILL BE MORE DIURNALLY BASED
WITH AFTERNOON SHOWERS AND THUNDERSTORMS SCATTERED ACROSS THE
REGION. THIS GENERAL PATTERN WILL REPEAT EACH DAY FOR THE REST OF
THE WEEK AND INTO THE WEEKEND.
WHILE OVERCAST SKIES WILL KEEP AFTERNOON TEMPERATURES NEAR
AVERAGE, WITH HIGHS IN THE MID TO UPPER 80S, DEW POINTS WILL BE
STUBBORNLY HIGH IN THE MID 70S. THIS WILL LEAD TO AFTERNOON HIGHS
FEELING LIKE THEY ARE WELL INTO THE 90S SO WHILE WE WON’T HAVE
SUMMER-LIKE TEMPERATURES IT WILL FEEL LIKE IT.
AVIATION
(18Z TAFS)
ISSUED AT 1226 PM CDT WED MAY 27 2026
THE MAIN LINE OF SHOWERS AND THUNDERSTORMS HAS MOVED ACROSS MUCH
OF THE REGION AND IS MAINLY IMPACTING LFT AND ARA AT THIS TIME.
WHILE THERE ARE BREAKS IN THE CLOUDS, PERSISTENT MVFR CONDITIONS
WILL CONTINUE FOR MOST OF THE TAF PERIOD. WHILE SOME CAMS ARE
SHOWING A SECOND LINE OF THUNDERSTORMS THIS EVENING, ISOLATED
SHOWERS ARE MORE LIKELY. OUTSIDE OF CONVECTION, WINDS WILL BE FROM
THE SOUTH AROUND 10 TO 15 KNOTS.
MARINE
ISSUED AT 1226 PM CDT WED MAY 27 2026
A LINE OF SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS THE COASTAL
WATERS THIS AFTERNOON AND EVENING. NEAR SHOWERS AND THUNDERSTORMS,
WINDS WILL BE GUSTY WITH LOCALLY HIGH WAVES AND LOW VISIBILITY.
BEHIND THE FRONT, WINDS WILL INCREASE WITH GUSTS NEAR 20 KNOTS.
BECAUSE OF THIS, THERE WILL BE AN EXERCISE CAUTION STATEMENT IN
PLACE OVERNIGHT.
BY THURSDAY MORNING, THE IMPACTFUL WEATHER WILL BE OUT OF THE
REGION. FOR THE REST OF THE WEEK AND INTO THE WEEKEND, HIGH
PRESSURE OFF THE EASTERN SEABOARD WILL KEEP THE GENERAL FLOW
SOUTHERLY WITH BACKGROUND WINDS AROUND 10 TO 15 KNOTS.
FIRE WEATHER
ISSUED AT 1226 PM CDT WED MAY 27 2026
MULTIPLE ROUNDS OF HEAVY RAIN HAVE HELPED DROP THE KBDI DOWN INTO
THE LOW 100S WITH SOME LOCATIONS BELOW 50. OVERALL, PERSISTENT
SOUTHERN FLOW WILL KEEP DEW POINTS IN THE 70S WITH MINIMUM RH
VALUES ABOVE 60%. WINDS WILL BE FROM THE SOUTH WITH 20 FOOT WINDS
AROUND 10 MPH.
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
PUBLIC/FIRE/MARINE...14
AVIATION...14
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