602
FXUS64 KLCH 101145
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
645 AM CDT THU SEP 10 2026
..NEW AVIATION
KEY MESSAGES
- AFTERNOON HIGHS TODAY WILL AGAIN CLIMB INTO THE LOW TO MID 90S
WITH HEAT INDICES RANGING FROM 99-106.
- HIGHER PRECIPITATION CHANCES ARE EXPECTED THROUGH THE WEEKEND
AS DEEP MOISTURE MOVES ACROSS THE AREA AND INTERACTS WITH A
WEAKNESS ALOFT.
DISCUSSION
(TONIGHT THROUGH NEXT WEDNESDAY)
ISSUED AT 1215 AM CDT THU SEP 10 2026
A RIDGE ALOFT EXTENDS NEARLY COAST TO COAST FROM CA TO SC, BUT THE
RIDGE'S GRIP IS LESSENED NEAR THE GULF COAST. THE SUBTROPICAL
RIDGE EXTENDS INLAND FROM THE CAROLINAS INTO THE LOWER MS VALLEY
KEEPING A SOUTHERLY FLOW IN PLACE LOCALLY. ALSO AT THE SURFACE, A
WEAK BOUNDARY IS OVER THE NORTHERN GULF. THIS SET UP HAS PRODUCED
A GRADIENT OF SHOWERS AND STORMS ACROSS THE AREA WHERE CONVECTION
QUICKLY BECOMES MORE SPARSE FARTHER INLAND FROM THE SCATTERED TO
NUMEROUS STORMS ALONG THE COAST. A PWAT GRADIENT IS ALSO ACROSS
THE REGION WITH HIGHER VALUES ALONG THE COAST WHICH IS ALSO
HELPING CONVECTION BE LESS NUMEROUS INLAND. THIS SCENARIO WILL
REPEAT AGAIN THURSDAY, HOWEVER THE RIDGE ALOFT WILL GRADUALLY
WEAKEN THROUGH THE DAY AS A SHORT WAVE MOVES INTO THE OZARKS.
THE SHORT WAVE WILL WEAKENED THE RIDGE OVER SE TX AND LA BY EARLY
FRIDAY AND ALLOW GULF MOISTURE TO BE LIFTED NORTH. AS THE
DISTURBANCE INTERACTS WITH DEEP MOISTURE SCATTERED TO NUMEROUS
STORMS CAN BE ANTICIPATED AREA WIDE BY FRIDAY AFTERNOON. ANOTHER
WET DAY IS FORECAST FOR SATURDAY AS THE WEAKNESS ALOFT LINGERS.
SUNDAY INTO MONDAY RAIN CHANCES BEGIN TO DECREASE AS WEAK RIDGING
REBUILDS OVER THE AREA. SCATTERED DIURNAL STORMS ARE STILL
ANTICIPATED.
AVIATION
(12Z TAFS)
ISSUED AT 641 AM CDT THU SEP 10 2026
VFR CONDITIONS ARE EXPECTED REMAIN THE PRIMARY CATEGORY ACROSS
MOST TERMINALS THROUGH THE MORNING HOURS. CONVECTION DOES INCREASE
THROUGH THE AFTERNOON WITH A DECENT CHANCE OF AT LEAST VCTS AT
ALL TERMINALS. ACADIANA TERMINALS DO HAVE HIGHER CHANCES OF TS
TOWARD LATE AFTERNOON WHERE A PROB GROUP IS INCLUDED. OUTSIDE OF
TS, WINDS ARE EXPECTED TO BE LIGHT AND VARIABLE WHILE GRADUALLY
GAINING SE - SW COMPONENTS THROUGH THE LATE AFTERNOON. CONVECTION
IS FORECAST TO WANE AROUND SUNSET FOR VFR CONDITIONS TO RESUME
TONIGHT.
30
MARINE
ISSUED AT 1215 AM CDT THU SEP 10 2026
OUTSIDE OF STORMS GENERALLY LIGHT SOUTHERLY WINDS ARE ANTICIPATED
THROUGH THE PERIOD AS HIGH PRESSURE REMAINS CENTERED OFF THE
ATLANTIC COAST. SEAS WILL ALSO REMAIN LOW.
FIRE WEATHER
ISSUED AT 1215 AM CDT THU SEP 10 2026
HUMID CONDITIONS WILL REMAIN IN PLACE THROUGH THE PERIOD. FIRE
WEATHER CONCERNS ARE NOT ANTICIPATED.
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
PUBLIC/FIRE/MARINE...05
AVIATION...30
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