798
FXUS64 KLCH 032318
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
618 PM CDT THU SEP 3 2026
..NEW AVIATION
KEY MESSAGES
- IN THE WAKE EDOUARD, A BROAD WEAKNESS IN THE MID LEVELS WILL
REMAIN OVER THE AREA THROUGH THE WEEKEND ALONG WITH ABUNDANT
MOISTURE, KEEPING DECENT CHANCES FOR DAILY SCATTERED SHOWERS
AND THUNDERSTORMS AMID TYPICAL SUMMERTIME HEAT.
- WHILE HIGHS GRADUALLY RECOVER TO THE MID 90S THROUGH THE REST OF
THE WEEK, AN UNSETTLED MOISTURE PATTERN WILL ALLOW A FEW
INSTANCES OF FLASH FLOODING TO REMAIN POSSIBLE.
DISCUSSION
(THIS EVENING THROUGH NEXT WEDNESDAY)
ISSUED AT 127 PM CDT THU SEP 3 2026
CURRENTLY, THE REMNANTS OF TROPICAL DEPRESSION EDOUARD REMAIN OVER
EASTERN TX, WITH PLENTY OF MOISTURE STILL SUPPORTING PERIODS OF
HEAVY RAIN ACROSS OUR SETX COUNTIES. DIURNAL PROCESSES ARE
ADDITIONALLY HELPING TO DESTABILIZE THE AIRMASS, ALLOWING FOR
QUICK POP UP SHOWERS AND STORMS ACROSS PARTS OF SWLA. EDOUARD IS
FORECAST TO MOVE NORTHWARD AND DISSIPATE TOMORROW, WHICH SHOULD
TEMPORARILY BRING PWATS BACK TOWARD THE DAILY MEAN ACROSS THE
AREA. HOWEVER, ADDITIONAL SHOWERS AND STORMS WILL BE POSSIBLE
BEFORE THE SYSTEM FULLY DEPARTS. GIVEN THE LINGERING MOISTURE AND
RECENT HEAVY RAINFALL, WE WILL BE IN ANOTHER MARGINAL RISK FOR
EXCESSIVE RAINFALL TOMORROW.
SATURDAY, ANOTHER TROPICAL WAVE WILL MOVE WESTWARD ACROSS THE
GULF, ALLOWING PWATS TO RISE ABOVE THE 90TH PERCENTILE ONCE AGAIN.
WHILE WE ARE NOT CURRENTLY INCLUDED IN AN ERO FOR SATURDAY, THIS
WILL BE WORTH MONITORING, AS PORTIONS OF THE CWA, ESPECIALLY SETX,
WILL REMAIN SENSITIVE FOLLOWING THE PREVIOUS ROUNDS OF HEAVY
RAINFALL. THE DEEPER PLUME OF MOISTURE WILL SHIFT EASTWARD SUNDAY,
THOUGH A MOISTURE RICH AIRMASS WILL REMAIN IN PLACE ACROSS THE
GULF COAST STATES HEADING INTO THE UPCOMING WORK WEEK. THIS WILL
SUPPORT OUR CONTINUED RUN OF THE MILL DAILY DIURNAL SHOWERS AND
THUNDERSTORMS.
ALOFT, A RIDGE WILL BUILD ACROSS THE SOUTHERN TO CENTRAL PLAINS,
WHILE THE STUBBORN WEAKNESS ALOFT REMAINS IN PLACE OVER THE GULF.
THE STRENGTHENING RIDGE SHOULD SUPPRESS SHOWER AND STORM COVERAGE
ACROSS THE NORTHERN HALF OF THE CWA WHILE ALLOWING TEMPERATURES TO
TREND SLIGHTLY HIGHER DURING THE WORK WEEK. HIGH TEMPERATURES IN
THE UPPER 90S COMBINED WITH HIGH HUMIDITY WILL RESULT IN APPARENT
TEMPERATURES APPROACHING HEAT ADVISORY CRITERIA, WHICH WILL NEED
TO BE MONITORED AS WELL. NEVERTHELESS, HEAT MAY BECOME MORE OF A
HAZARD THAN HYDRO GOING INTO NEXT WEEK.
AVIATION
(00Z TAFS)
ISSUED AT 616 PM CDT THU SEP 3 2026
LIGHT WINDS AND VFR CEILINGS WILL PREVAIL THROUGH THE OVERNIGHT
HOURS AND INTO TOMORROW MORNING. ONLY DEVIATION WILL POSSIBLY BE A
BIT OF PATCHY FOG AT AEX NEAR SUNRISE. TOMORROW, SCATTERED SHOWERS
AND STORMS BEGIN TO FIRE OFF BY MIDDAY, EXPANDING IN COVERAGE
THROUGH THE AFTERNOON. COVERAGE LOOKS TO BE BEST ACROSS ACADIANA.
MARINE
ISSUED AT 127 PM CDT THU SEP 3 2026
LIGHT MAINLY SE TO S WINDS AND LOW SEAS WILL PREVAIL THROUGH THE END
OF THE WEEK AND INTO THE WEEKEND. SCATTERED CONVECTION WILL CONTINUE
TO BE POSSIBLE EACH DAY AS WELL, AS A STEADY STREAM OF MOISTURE
MOVES OVER THE REGION.
FIRE WEATHER
ISSUED AT 127 PM CDT THU SEP 3 2026
DESPITE RAINFALL FROM TD EDOUARD, PARTS OF THE AREA REMAIN IN A
DROUGHT. FURTHER RAINFALL IS EXPECTED THROUGH THE END OF THE WEEK
AND WEEKEND AS MOISTURE CONTINUES TO SURGE OVERHEAD. MINRH VALUES
WILL RANGE FROM THE 50 TO 70% RANGE EACH DAY.
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...FLOOD WATCH UNTIL 7 PM CDT THIS EVENING FOR TXZ180-201-261-262-
515-516-615-616.
GM...NONE.
PUBLIC/FIRE/MARINE...87
AVIATION...17
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