711
FXUS64 KLCH 031117
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
617 AM CDT MON AUG 3 2026
..NEW AVIATION
KEY MESSAGES
- DEWPOINTS WILL BEGIN TO RISE THROUGH THE WORK WEEK, WHILE BOTH
HIGH AND LOW TEMPERATURES ARE FORECAST TO REMAIN AT OR SLIGHTLY
ABOVE AVERAGE.
-ISOLATED DIURNALLY DRIVEN AFTERNOON THUNDERSTORMS WILL BE
POSSIBLE EACH DAY THROUGH THE WORK WEEK, WITH RAIN CHANCES IN THE
15 TO 30% RANGE.
DISCUSSION
(TODAY THROUGH SUNDAY)
ISSUED AT 1217 AM CDT MON AUG 3 2026
AS MENTIONED IN THE AFD A MERE 24H AGO, THE RELATIVELY SHORT LIVED
NORTHERLY FLOW WOULD BE JUST THAT... SHORT LIVED. WHILE NOT A MARKED
INCREASE, DEWPOINTS HAVE BEGUN TO CREEP UPWARD EARLY THIS MONDAY
MORNING. MUCH OF THE FORECAST AREA SAW DEWPOINTS FALL INTO THE MID
60S YESTERDAY THANKS TO THE DRIER AIR BEHIND THE FRONTAL BOUNDARY
THAT MOVED THROUGH SUNDAY MORNING. THE BOUNDARY NOW LINGERS
QUASISTATIONARY ALONG THE COASTLINE, WHERE IT IS FORECAST TO
REMAIN THROUGH THE BEGINNING OF THE WORKWEEK BEFORE LIFTING
NORTHWARD AS A WARM FRONT BY MIDWEEK. WINDS TODAY WILL BE LIGHT
AND VARIABLE, BUT SOUTHERLY FLOW WILL ONCE AGAIN BECOME
ESTABLISHED, ALLOWING DEWPOINTS TO CLIMB BACK INTO THE MID TO
UPPER 70S.
ALOFT, THE AREA WILL RESIDE BETWEEN AN UPPER LEVEL RIDGE EXPANDING
FROM THE DESERT SW INTO THE SOUTHERN PLAINS AND AN UPPER CUTOFF
LOW OVER THE SECONUS. ALTHOUGH THE CUTOFF LOW WILL BE SOMEWHAT
REABSORBED INTO THE BROADER FLOW, A WEAKNESS ALOFT WILL STILL BE
PRESENT. THE RIDGE WILL ALLOW FOR PARTS OF SETX TO SEE A SLIGHT
INCREASE IN AFTERNOON TEMPS, THOUGH NOTHING CLIMATOLOGICALLY
SIGNIFICANT. INCREASING LOW LEVEL MOISTURE, THE SUBTLE WEAKNESS
ALOFT, AND DAYTIME HEATING WILL SUPPORT ISOLATED CONVECTION
THROUGH MUCH OF THE WORKWEEK, ESPECIALLY ACROSS THE EASTERN HALF
OF THE CWA.
TEMPERATURES WILL REMAIN SLIGHTLY ABOVE NORMAL AND FAIRLY UNIFORM
FROM DAY TO DAY. A FEW LOCATIONS, PARTICULARLY ACROSS SETX WHERE
THE INFLUENCE OF THE UPPER RIDGE WILL BE GREATEST, COULD APPROACH
HEAT ADVISORY CRITERIA DURING THE WORKWEEK. HOWEVER, WIDESPREAD
HEAT HAZARDS APPEAR UNLIKELY AT THIS TIME.
AVIATION
(12Z TAFS)
ISSUED AT 615 AM CDT MON AUG 3 2026
DRY AIRMASS LEFT FROM THE FRONTAL PASSAGE YESTERDAY WILL KEEP
CONDITIONS HOT AND DRY TODAY. WINDS WILL PRIMARILY BE LIGHT AND
VARIABLE AS THE REGION IS SITUATED IN A LIMBO BETWEEN FEATURES, IE
NOTHING TO DRIVE WIND SPEEDS. COASTAL TERMINALS COULD SEE
SOUTHERLY WINDS WITH A SEABREEZE THIS AFTERNOON. A MOISTURE PLUME
SHOULD ACCOMPANY ANY SEABREEZE PASSAGE AND SO VFR CEILINGS WILL
LIKELY RETURN TODAY AS WELL.
11
MARINE
ISSUED AT 1217 AM CDT MON AUG 3 2026
A LIGHT WEST TO SOUTHWEST FLOW WILL CONTINUE THROUGH THE NEXT
COUPLE OF DAYS, BECOMING MORE SOUTHERLY BY LATE TUESDAY AND
BEYOND. A FEW ISOLATED SHOWERS WILL BE POSSIBLE LATER IN THE
PERIOD, BUT OVERALL MOSTLY DRY CONDITIONS ARE EXPECTED THROUGH THE
WORK WEEK.
FIRE WEATHER
ISSUED AT 1217 AM CDT MON AUG 3 2026
MINIMUM AFTERNOON RH VALUES TODAY AND MONDAY ARE EXPECTED TO RANGE
FROM 35 TO 50 PERCENT. WINDS WILL TURN BACK OUT OF THE SOUTH ON
MONDAY. ISOLATED AFTERNOON THUNDERSTORMS WILL BE POSSIBLE THROUGH
MUCH OF THE WORKWEEK.
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
PUBLIC/FIRE/MARINE...87
AVIATION...11
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