108
FXUS64 KLCH 051124
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
624 AM CDT WED AUG 5 2026
..NEW AVIATION
KEY MESSAGES
- A TYPICAL SUMMER WEATHER PATTERN WILL PREVAIL THROUGH THIS WEEK
WITH A FEW AFTERNOON THUNDERSTORMS EACH DAY.
- AFTERNOON HIGHS WILL CLIMB INTO THE LOW TO MID 90S EACH DAY
WITH MAXIMUM HEAT INDICES RANGING FROM 101 TO 109.
DISCUSSION
(TODAY THROUGH TUESDAY)
ISSUED AT 1204 AM CDT WED AUG 5 2026
THE FORECAST IS A PERSISTENT ONE WITH THE DAY-TO-DAY FORECAST NOT
CHANGING MUCH OVER THE NEXT SEVERAL DAYS. WE REMAIN STUCK BETWEEN
A HIGH PRESSURE RIDGE TO THE WEST WITH A WEAK UPPER LEVEL LOW ON
THE EASTERN SEABOARD. EACH DAY DIURNALLY DRIVEN SHOWERS AND
THUNDERSTORMS SHOULD BE EXPECTED WITH RAIN CHANCES BETWEEN 30 AND
60%. STORM COVERAGE WILL BE SPORADIC, FORMING OFF THE SEA BREEZE
OR OUTFLOWS. SHOWERS WILL ALSO BE SLOW MOVING BUT WITH PWATS NEAR
THE MEDIAN VALUES FLASH FLOODING ISN'T A MAJOR CONCERN .
NEAR THE SURFACE HIGH PRESSURE IN THE EASTERN GULF WILL KEEP OUR
WINDS LIGHT AND PRIMARILY FROM THE SOUTH. DURING THE AFTERNOON THE
DRY AIR ALOFT WILL MIX DOWN TO THE SURFACE WHICH WILL LOWER OUR
DEW POINTS, KEEPING HEAT INDEX VALUES FROM REACHING HEAT ADVISORY
LEVELS OF +108F. AFTERNOON HIGHS WILL BE IN THE MID 90S WITH
SLIGHTLY HIGHER VALUES IN CENTRAL LOUISIANA. THESE VALUES ARE A
DEGREE OR TWO ABOVE THE CLIMATOLOGICAL AVERAGE BUT NOT RECORD-
BREAKING.
AVIATION
(12Z TAFS)
ISSUED AT 616 AM CDT WED AUG 5 2026
SHOWERS AND LOW CLOUDS (AS WELL AS SOME GROUND FOG) STUBBORNLY
HUNG AROUND THROUGH THE NIGHT ACROSS SOUTHWEST AND CENTRAL
LOUISIANA. THIS AREA HAS BEEN SITUATED UNDER A TROF AXIS EXTENDING
FROM LOW PRESSURE NEAR CENTRAL MISSISSIPPI. CLOUD COVER AND ANY
GROUND FOG WILL LIKELY BREAK UP WITH SUNRISE, BUT WITH THIS LOWER
PRESSURE, EXPECT SCATTERED SHOWERS AND THUNDERSTORMS TO DEVELOP
FROM AFTERNOON TO EARLY EVENING. THIS IS THE FIRST OF MANY DAYS
WHICH SHOULD SEE A RETURN TO THE TYPICAL SUMMERTIME CLIMO PATTERN.
A SOUTHERLY WIND WILL PREVAIL TODAY, PARTICULARLY IN RESPONSE TO
THE DIURNAL BREEZE CYCLE.
11
MARINE
ISSUED AT 1204 AM CDT WED AUG 5 2026
ONSHORE WINDS WILL BE BETWEEN 10 AND 15 KNOTS WITH 2 TO 4 FEET
WAVES. ISOLATED SHOWERS WILL BE POSSIBLE IN THE AFTERNOONS.
FIRE WEATHER
ISSUED AT 1204 AM CDT WED AUG 5 2026
KBDI VALUES CONTINUE TO CLIMB. ISOLATED SHOWERS AND THUNDERSTORMS
ARE EXPECTED EACH AFTERNOON WILL PROVIDE LOCAL RELIEF BUT
OTHERWISE NO WIDESPREAD RAIN IS EXPECTED. MINIMUM RH VALUES WILL
BE AROUND 50%.
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
PUBLIC/FIRE/MARINE...14
AVIATION...11
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