298
FXUS64 KLCH 060623
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
123 AM CDT SUN SEP 6 2026
..NEW DISCUSSION, AVIATION, MARINE, FIRE WEATHER
KEY MESSAGES
- TROPICAL MOISTURE WHICH ARRIVED TO SOUTHEAST TEXAS AND LOUISIANA
SATURDAY WILL STAY IN PLACE SUNDAY AND INTO THE START OF THE
WEEK. EXPECT HOT AND HUMID CONDITIONS EACH DAY; HEAT INDICES IN
THE 102 TO 106F RANGE.
- RIDGING MOVES IN OVERHEAD SUNDAY ALLOWING FOR FEWER STORMS IN
THE REGION. THE HIGH MOVES OFF TO THE NORTHEAST DURING THE WEEK
WITH SCATTERED DAILY AFTERNOON THUNDERSTORMS EXPECTED.
- THE LABOR DAY HOLIDAY WILL BE TYPICAL OF THE GULF COAST SUMMER:
SCATTERED AFTERNOON SHOWERS AND STORMS WITH HIGHS IN THE LOW TO
MID 90S AND HEAT INDICES TOPPING OUT AROUND 106F.
- FOR THOSE WITH OUTDOOR HOLIDAY ACTIVITIES, PLAN ACCORDINGLY FOR
THE WARMTH AND AFTERNOON STORMS. LIGHTNING CAN STRIKE 10 TO 15
MILES AWAY OR MORE FROM STORMS. PREPARE TO MOVE PLANS INDOORS
WHEN STORMS DEVELOP.
DISCUSSION
(TODAY THROUGH SATURDAY)
ISSUED AT 1207 AM CDT SUN SEP 6 2026
WIDESPREAD SHOWERS AND HEAVY RAINFALL DROPPED SOME MUCH NEEDED
RAINFALL AREA-WIDE SATURDAY. WHILE THIS EVENT ALONE WON'T BE THE
NEEDED AMOUNT TO BREAK THE DROUGHT, IT IS A START. THIS GROUND
WATER COMBINED WITH THE VERY TROPICAL AIRMASS WHICH ARRIVED TODAY
ALSO COMBINED WITH UPPER HIGH PRESSURE RIDGING IN TONIGHT HAS
GENERATED SOME RADIATIONAL GROUND FOG. NOT ANTICIPATING A DENSE
FOG EVENT, BUT THOSE OUT EARLY IN THE MORNING MAY RUN INTO SOME
SHALLOW POCKETS OF LIGHT TO DENSE FOG.
EXPECT CONDITIONS TO IMPROVE WITH SUNRISE.
UPPER RIDGE WILL KEEP US LARGELY QUIET TODAY WITH ONLY THE
IMMEDIATE COASTLINE POSSIBLE TO SEE DIURNAL CONVECTION. ANYTHING
THAT DOES DEVELOP WILL MOVE OFFSHORE ON NORTHERLY ANTICYCLONIC
WINDS ALOFT. WIDESPREAD CLOUD COVER IS ANTICIPATED WITHIN THE
MOIST CONDITIONS WHICH SHOULD HELP KEEP TEMPS IN CHECK.
THIS SURFACE MOISTURE WILL REMAIN IN PLACE EVEN AS THE UPPER HIGH
MOVES FURTHER INLAND MONDAY AND THIS WEEK. THIS LOSS OF SUBSIDENCE
COMBINED WITH THE SFC MOISTURE WILL OPEN THE DOOR FOR DAILY RAIN
AND STORM CHANCES, SO THIS WEEK SHOULD BE PRETTY CLIMATOLOGICALLY
NORMAL. SCATTERED STORMS AND THEIR RESULTING CLOUDS/RAIN KEEPING HIGHS
IN THE 90S.
MONDAY IS THE LABOR DAY HOLIDAY WHICH MEANS OUTDOOR ACTIVITIES!
FOR THOSE WITH OUTDOOR HOLIDAY PLANS, PLAN ACCORDINGLY FOR
SUMMERTIME HEAT AND AFTERNOON STORMS. LIGHTNING CAN STRIKE 10 TO
15 MILES OR FURTHER FROM STORMS. PREPARE TO MOVE PLANS INDOORS
WHEN STORMS DEVELOP. HEAT INDICES WILL RANGE FROM 102 TO 106F,
WHICH IS ENOUGH TO BE UNCOMFORTABLE FOR THOSE NOT ACCLIMATED AND
POTENTIALLY DANGEROUS FOR THOSE WHO AREN'T. NO HEAT ADVISORY IS
EXPECTED.
IT WILL TAKE SEVERAL DAYS FOR THIS AIRMASS TO MODERATE WITH THE
TEXAS EML, SO EXPECT IT TO BE LATE THIS WEEK BEFORE WE ACHIEVE
EFFECTIVE DAYTIME MIXING TO HELP WITH AFTERNOON TEMPS!
11/CALHOUN
AVIATION
(06Z TAFS)
ISSUED AT 1207 AM CDT SUN SEP 6 2026
HEAVY RAINFALL OCCURRED ACROSS ALL OF CENTRAL AND SOUTH LOUISIANA
SATURDAY AFTERNOON. CLOUD COVER HAS LARGELY CLEARED OUT AND WITH
HIGH PRESSURE RIDGING INTO NORTHWEST LA, THE CALM CONDITIONS HAVE
ALLOWED FOR AREAS OF GROUND FOG TO DEVELOP. VISIBILITIES OF 2 TO
4 MILES ARE EXPECTED, BUT ISOLATED PATCHES OF DENSE FOG WILL BE
POSSIBLE. WHERE THERE IS FOG, THOUGH, IT SHOULD BE RATHER SHALLOW
IN NATURE.
FOG CONDITIONS WILL DISSIPATE WITH SUNRISE AND ONLY VFR FAIR-
WEATHER CUMULUS IS ANTICIPATED ACROSS TERMINALS DURING THE DAY.
THERE IS SOME GUIDANCE WHICH DEVELOPS AN AREA OF SHOWERS OFFSHORE
NEAR BPT AND LCH FROM 08 TO 10Z, WHICH MAY RESULT IN ISOLATED
IMPACTS FOR A BRIEF AM PERIOD. IF THESE DEVELOP, THEY SHOULD MOVE
SOUTH AWAY FROM TERMINALS.
AN AREA OF DIURNAL CONVECTION IS LIKELY ALONG THE IMMEDIATE
COASTLINE, AWAY FROM RIDGE INFLUENCE AND ALONG THE DAYTIME LAND
DIFFERENTIAL HEAT BOUNDARY. NORTHERLY FLOW SHOULD PUSH ANY
DEVELOPING CELLS OFFSHORE. AN AFTERNOON CELL MAY BE ABLE TO PUSH
INLAND TO NEAR COASTAL TERMINALS. ANY ACTIVITY WILL DISSIPATE
WITH SUNDOWN AND CALM CONDITIONS RETURN.
11/CALHOUN
MARINE
ISSUED AT 1207 AM CDT SUN SEP 6 2026
LOW ONSHORE WINDS AND SEAS CAN BE EXPECTED OVER THE PERIOD AS
WEAK, BROAD HIGH PRESSURE SITS JUST INLAND. A TROPICAL AIRMASS IN
PLACE COMBINED WITH A SERIES OF WEAK WAVES MOVING EAST TO WEST
OVER THE NORTH GULF WILL BRING ABOUT DAILY SHOWER AND THUNDERSTORM
CHANCES.
FIRE WEATHER
ISSUED AT 1207 AM CDT SUN SEP 6 2026
HIGH PRESSURE RIDGES INTO NORTHWEST LOUISIANA OVERNIGHT AND INTO
TODAY HALTING MOST, IF NOT ALL, RAIN CHANCES. THE IMMEDIATE
COASTLINE MAY SEE A BRIEF STORM THIS AFTERNOON BEFORE IT PUSHES
OFFSHORE ON WEAK NORTHERLY WINDS ALOFT. UPPER HIGH PRESSURE MOVES
INLAND OVER THE WEEK, OPENING THE DOOR TO DAILY SCATTERED SHOWERS
AND THUNDERSTORMS WITHIN THE TROPICAL MOISTURE SETTLED IN OVER THE
REGION. DAILY CLOUD COVER WILL KEEP TEMPS IN THE CLIMATOLOGICALLY
NORMAL RANGE.
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
PUBLIC/FIRE/MARINE...11
AVIATION...11
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page