790
FXUS64 KLCH 271731
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1231 PM CDT SUN SEP 27 2026
..NEW DISCUSSION, AVIATION, MARINE, FIRE WEATHER
KEY MESSAGES
- LOW LEVEL SOUTHERLY FLOW BECOMES REESTABLISHED INTO EARLY WEEK
CAUSING MOISTURE TO INCREASE, LEADING TO DAYTIME TEMPERATURES
ABOVE SEASONAL NORMS AND MORE HUMID CONDITIONS.
- NEXT CHANCE FOR RAIN CAN BE EXPECTED THROUGH THE MIDDLE AND
LATER PART OF NEXT WEEK AS MOISTURE FURTHER INCREASES OVER THE
REGION IN ADVANCE OF A UPPER LEVEL LOW AND EVENTUAL FRONTAL
BOUNDARY.
DISCUSSION
(THIS AFTERNOON THROUGH NEXT SATURDAY)
ISSUED AT 1230 PM CDT SUN SEP 27 2026
WEAK HIGH PRESSURE EXTENDS SOUTHWEST FROM CANADA ACROSS THE OH
AND MS VALLEYS TO THE NORTHERN GULF COAST THIS AFTERNOON, WHILE
ALOFT, A RIDGE IS OVER THE CENTRAL PLAINS, TX, AND THE NW GULF
COAST. A FAIRLY DRY AIRMASS REMAINS IN PLACE LOCALLY WITH PWATS
NEAR 1.5". WHILE MOISTURE HAS INCREASED IN THE LOW LVLS, A DRY
LAYER REMAINS IN THE MID LVLS, ALBEIT NOT AS PRONOUNCED AS
YESTERDAY. RAIN CHANCES REMAIN SUPPRESSED DUE TO THE DRY LAYER
AND THE UPPER RIDGE, HOWEVER THE SEA BREEZE MAY SPAWN A SHOWER OR
TWO IN SE TX THIS AFTERNOON, MUCH LIKE YESTERDAY.
A NEAR CARBON COPY IS ANTICIPATED MONDAY, HOWEVER A FEW MORE SHOWERS
OR POSSIBLY EVEN A THUNDERSTORM MAY OCCUR ALONG THE SEA BREEZE IN
SW LA IN ADDITION TO SE TX. CHANCE IS LOW ~15% OR LESS.
THE PATTERN WILL SHIFT TUESDAY AS AN UPPER TROUGH OVER THE COAST
OF NORTHERN CA MOVES INTO THE SOUTHERN ROCKIES. THIS TROUGH WILL
CONTINUE TO PULL MOISTURE NORTH FROM HURRICANE POLO, TROPICAL
STORM ODALYS, AND TROPICAL DEPRESSION 18 INTO THE SOUTHERN
PLAINS. WHILE THE UPPER TROUGH MAY WEAKEN INTO MID TO LATE AS IT
NEARS OUR LOCAL REGION, MOISTURE AND LIFT WILL BE SUFFICIENT TO
PRODUCE HIGHER CHANCES OF RAIN FOR THE SECOND HALF OF THE WORK
WEEK AND INTO THE WEEKEND.
A SECONDARY DISTURBANCE MAY FINALLY PUSH A COLD FRONT THROUGH THE
AREA BY THE COMING WEEKEND.
AVIATION
(18Z TAFS)
ISSUED AT 1230 PM CDT SUN SEP 27 2026
VFR CONDITIONS ARE ANTICIPATED THROUGH THE PERIOD. WINDS WILL BE
LIGHT AND GENERALLY VARIABLE, HOWEVER AT KLCH AND KBPT A SEA
BREEZE WILL PRODUCE AN SOUTH WIND FOR SEVERAL HOURS THIS
AFTERNOON.
MARINE
ISSUED AT 1230 PM CDT SUN SEP 27 2026
HIGH PRESSURE OVER MOST OF THE EASTERN CONUS WILL KEEP LIGHT TO
MODERATE WINDS GENERALLY EAST TO SOUTHEAST. LOW PRESSURE WILL MOVE
INTO THE SOUTHERN PLAINS BY MID WEEK WITH WINDS INCREASING MID TO
LATE WEEK. LOW SEAS CAN BE ANTICIPATED THROUGH EARLY WEEK WITH
INCREASING HEIGHTS THEREAFTER.
FIRE WEATHER
ISSUED AT 1230 PM CDT SUN SEP 27 2026
AN ONSHORE FLOW WILL BECOME ESTABLISHED INTO EARLY WEEK WHICH WILL
INCREASE MOISTURE LEVELS. RAIN CHANCES INCREASE BY MID WEEK AS A
STORM SYSTEM MOVES INTO TEXAS. HEAVY RAIN MAY OCCUR BY THE END OF
THE WEEK AS A COLD FRONT MOVES THROUGH.
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
PUBLIC/FIRE/MARINE...05
AVIATION...05
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