128
FXUS64 KLCH 082320
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
620 PM CDT MON SEP 8 2025
..NEW AVIATION
KEY MESSAGES
- SURFACE HIGH PRESSURE WILL ALLOW FOR DRY CONDITIONS WITH COOLER
THAN NORMAL NIGHT TIME LOWS AND COMFORTABLE HUMIDITY DURING THE
DAYTIME.
- TEMPERATURES WILL WARM FROM THE MIDDLE TO LATTER PART OF THE
WEEK AS SURFACE HIGH PRESSURE WEAKENS AND WINDS BECOME MORE FROM
THE EAST AND SOUTHEAST.
- AN UPPER LEVEL HIGH WILL BUILD OVER THE REGION LATE IN THE WEEK
KEEPING RAIN CHANCES OUT OF THE FORECAST.
SHORT TERM
(TONIGHT THROUGH WEDNESDAY NIGHT)
ISSUED AT 1235 PM CDT MON SEP 8 2025
SURFACE HIGH PRESSURE RIDGING DOWN FROM THE EASTERN GREAT LAKES
AND KEEPING A NORTHEAST FLOW OVER THE FORECAST AREA BRINGING DRY
CONTINENTAL AIR IN. THIS IS ALLOWING FOR SUNNY SKIES AND LOW
HUMIDITY WITH BELOW NORMAL TEMPERATURES THAT WILL CONTINUE INTO
TUESDAY. LOW TEMPERATURES TONIGHT ARE PRETTY CONSISTENT ON
GUIDANCE AND VERY LITTLE SPREAD IN THE ENSEMBLE PLOTS THAT SHOW
READINGS BY TUESDAY MORNING WILL BE SOME 10F DEGREES BELOW CLIMO
NORMS.
SOME MODERATION IN TEMPERATURES ARE EXPECTED ON WEDNESDAY AS THE
SURFACE HIGH FROM THE NORTHEAST WEAKENS AND MOVES TO THE EAST.
ONLY RAIN CHANCES LOOK TO BE TOMORROW AFTERNOON OVER THE LOWER
ATCHAFALAYA BASIN WITH A WEAK EASTERLY WAVE, AND THEN ON WEDNESDAY
AFTERNOON NEAR THE COAST WITH RETURN FLOW MOISTURE AND THE
SEABREEZE. OTHERWISE, DRIER AIR ALOFT WILL KEEP MOST OF THE AREA
RAIN FREE.
RUA
LONG TERM
(THURSDAY THROUGH NEXT SUNDAY)
ISSUED AT 1230 PM CDT MON SEP 8 2025
TEMPERATURES AND HUMIDITY WILL REBOUND DURING THIS PERIOD AS
SURFACE FLOW BECOMES MORE EAST AND SOUTHEAST BRINGING CONDITIONS
BACK TO TYPICAL LATE SUMMERTIME. AN UPPER LEVEL RIDGE WILL BUILD
IN FROM TEXAS AND THIS WILL KEEP DRY AND SUBSIDENT AIR OVER THE
REGION KEEPING ANY SIGNIFICANT SHOWER ACTIVITY VERY LIMITED AT
BEST.
RUA
AVIATION
(00Z TAFS)
ISSUED AT 618 PM CDT MON SEP 8 2025
VFR CONDITIONS TO PERSIST PAST THE END OF THIS FORECAST PERIOD
WITH HIGH PRESSURE ALOFT AND AT THE SURFACE BRINGING IN DRIER AIR.
MARINE
ISSUED AT 1225 PM CDT MON SEP 8 2025
HIGH PRESSURE RIDGING DOWN FROM THE NORTHEAST WILL ALLOW FOR A
MODEST NORTHEAST FLOW INTO TUESDAY, WITH RELATIVELY LOW SEAS. THIS
SYSTEM WILL BE REPLACED DURING THE MID WEEK BY A WEAK HIGH
PRESSURE SYSTEM ALONG THE GULF COAST THAT WILL PROVIDE A LIGHT TO
MODEST EASTERLY FLOW. RAIN CHANCES WILL BE LIMITED DUE TO DRIER
AIR ALOFT.
FIRE WEATHER
ISSUED AT 1222 PM CDT MON SEP 8 2025
DRY WEATHER CONTINUE AS HIGH PRESSURE AT BOTH THE SURFACE AND
ALOFT WILL PERSIST OVER THE REGION FOR THE NEXT FEW DAYS. THERE
WILL BE LITTLE TO NO CHANCE OF ANY SIGNIFICANT RAIN WITH
AFTERNOON MINIMUM RELATIVE HUMIDITY VALUES BETWEEN 40 AND 50
PERCENT.
PRELIMINARY POINT TEMPS/POPS
AEX 84 57 89 65 / 0 0 0 0
LCH 85 62 88 70 / 0 0 0 0
LFT 85 62 89 70 / 0 0 0 0
BPT 87 62 89 68 / 0 0 0 0
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
SHORT TERM...07
LONG TERM....07
AVIATION...87
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