215
FXUS64 KLCH 111056
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
556 AM CDT TUE AUG 11 2026
..NEW AVIATION
KEY MESSAGES
- LOWER RAIN CHANCES ARE EXPECTED FROM THE MIDDLE INTO THE
UPCOMING WEEKEND.
- HIGHER TEMPERATURES AND ELEVATED DEWPOINTS WILL YIELD HIGHER
HEAT INDICES.
DISCUSSION
(TODAY THROUGH MONDAY)
ISSUED AT 1225 AM CDT TUE AUG 11 2026
CURRENT CONDITIONS ARE WARM AND HUMID, WITH TEMPERATURES IN THE
MID TO UPPER 70S AND DEWPOINTS JUST A FEW DEGREES SHY OF ACTUAL
TEMPERATURES. AT THE SURFACE, HIGH PRESSURE DOMINATES MUCH OF THE
SECONUS. WITH SURFACE RIDGING EXPECTED TO REMAIN IN PLACE ACROSS
THE REGION AND/OR OVER THE GULF, LIGHT SOUTHERLY FLOW WILL PREVAIL
FOR MUCH OF THE FORECAST PERIOD.
ALOFT, AN UPPER RIDGE IS CENTERED JUST TO OUR EAST OVER THE GULF
AND GULF COAST STATES. THE RIDGE IS EXPECTED TO EXPAND WESTWARD
AND BECOME CENTERED OVER THE LOWER MISSISSIPPI VALLEY THROUGH THE
WEEK, THEN MEANDER INTO THE WEEKEND BEFORE SLOWLY SHIFTING
WESTWARD INTO THE SOUTHERN PLAINS NEXT WEEK.
WITH THE RIDGE BECOMING INCREASINGLY ESTABLISHED OVERHEAD,
TEMPERATURES WILL STEADILY CLIMB WHILE POPS REMAIN ISOLATED AT
BEST THROUGH THE REMAINDER OF THE FORECAST PERIOD. THE COMBINATION
OF AFTERNOON TEMPERATURES IN THE MID TO UPPER 90S AND DEWPOINTS IN
THE 70S WILL YIELD HEAT INDICES GENERALLY IN THE 103 TO 111 RANGE,
MEANING SOME HEAT HAZARDS MAY BE NEEDED FOR PORTIONS OF THE
FORECAST AREA.
AVIATION
(12Z TAFS)
ISSUED AT 554 AM CDT TUE AUG 11 2026
PATCHY FOG IS CAUSING SOME VISIBILITY ISSUES ACROSS THE REGION
WITH MVFR IMPACTS AT AEX. AFTER SUNRISE FOG WILL BURN AWAY AND
CONDITIONS WILL BE PRIMARILY VFR. DURING THE AFTERNOON ISOLATED
SHOWERS AND THUNDERSTORMS WILL LEAD TO PERIODS OF MVFR IMPACTS
AND A PROB30 IS IN THE TAFS. AWAY FROM CONVECTION CONDITIONS WILL
BE VFR WITH LIGHT WINDS.
MARINE
ISSUED AT 1225 AM CDT TUE AUG 11 2026
AN UPPER LEVEL RIDGE BUILDING INTO THE AREA WILL BRING A DECREASE
IN SHOWER ACTIVITY, WITH RAIN CHANCES BELOW 20 PERCENT.
FIRE WEATHER
ISSUED AT 1225 AM CDT TUE AUG 11 2026
AN EXPANDING UPPER LEVEL RIDGE WILL RESULT IN A WARMING TREND AND
A DECREASE IN DAILY SHOWER COVERAGE THROUGH THE FIRST HALF OF THE
WEEK, WITH RAIN CHANCES BELOW 20 PERCENT. MINRH VALUES ARE
FORECAST TO DROP TO THE 40 TO 60 PERCENT RANGE, WITH WINDS LESS
THAN 10 KTS. THIS SHOULD PRECLUDE ANY SIGNIFICANT FIRE WEATHER
CONDITIONS.
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
PUBLIC/FIRE/MARINE...87
AVIATION...14
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