171
FXUS64 KLCH 062341
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
641 PM CDT THU AUG 6 2026
..NEW AVIATION
KEY MESSAGES
- A MAINLY TYPICAL SUMMER WEATHER PATTERN WILL PREVAIL INTO THE
WEEKEND.
- THERE WILL BE A CHANCE FOR DAILY MAINLY AFTERNOON SHOWERS OR
THUNDERSTORMS, HOWEVER WIDESPREAD SIGNIFICANT RAINFALL IS NOT
EXPECTED.
- MUGGY CONDITIONS WILL ALSO OCCUR WITH AFTERNOON HEAT INDEX
READINGS BETWEEN 100 AND 107 DEGREES.
-DUE TO HIGH HUMIDITY AND LOW WINDS, POCKETS OF PATCHY FOG ARE
POSSIBLE EARLY FRIDAY AND SATURDAY MORNING, ESPECIALLY IN THE
NORTHERN PART OF THE FORECAST AREA.
DISCUSSION
(THIS AFTERNOON THROUGH NEXT WEDNESDAY)
ISSUED AT 1141 AM CDT THU AUG 6 2026
WEATHER PATTERNS IN THE FORECAST AREA WILL LARGELY REMAIN TYPICAL
FOR THE SEASON, WITH HIGHS IN THE LOW 90S AND LOWS IN THE UPPER
70S. A SURFACE RIDGE ALONG THE SOUTHEAST AND GULF COASTS WILL
RESULT IN SOUTHERLY SURFACE WINDS THAT WILL TRANSPORT WARM, MOIST
AIR FROM THE GULF INTO THE FORECAST AREA. CONSEQUENTLY, DEW POINT
TEMPERATURES WILL BE IN THE MID TO UPPER 70S, CREATING A MUGGY
DAYTIME ENVIRONMENT WITH AFTERNOON HEAT INDEX READINGS RISING
ABOVE 100 DEGREES. AT NIGHT, THIS HIGH RELATIVE HUMIDITY, COUPLED
WITH CALM WINDS OF 3-7 MPH WILL ALLOW FOR AREAS OF PATCHY FOG TO
DEVELOP IN THE EARLY MORNING HOURS OF FRIDAY AND SATURDAY.
AN UPPER LEVEL RIDGE CENTERED OVER THE SOUTHWEST US WILL BRING
NORTHEASTERLY FLOW IN THE MID AND UPPER LEVELS OF THE FORECAST
AREA. HOWEVER, THE RIDGE IS NOT EXPECTED TO HAVE ANY SUPPRESSIVE
INFLUENCE ON AFTERNOON CONVECTION.
AFTERNOON SHOWERS AND THUNDERSTORMS INITIATED BY DAYTIME HEATING
AND SEA BREEZE ARE POSSIBLE EACH DAY HEADING INTO THE WEEKEND, BUT
SIGNIFICANT RAINFALL IS NOT EXPECTED. HOWEVER, ISOLATED AND SLOW
MOVING STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL AMOUNTS THAT
COULD CAUSE MINOR FLOODING IN LOW-LYING AREAS WITH POOR DRAINAGE.
AVIATION
(00Z TAFS)
ISSUED AT 611 PM CDT THU AUG 6 2026
DIURNAL CONVECTION WILL CONTINUE TO DIMINISH OVER THE NEXT COUPLE
OF HOURS WITH STABLE CONDITIONS EXPECTED OVERNIGHT. MAINLY VFR
CONDITIONS ARE EXPECTED UNTIL CLOSE TO SUNRISE WHEN SOME PATCHY
FOG MAY ALLOW FOR MVFR CONDITIONS.
ON FRIDAY, ANOTHER ROUND OF DAYTIME HEATING AND SEABREEZE ACTIVITY
IS EXPECTED AND WILL HAVE PROB30 GROUPS AT THE TERMINALS DURING
THE TIMEFRAME CONVECTION MAY AFFECT THEM.
07/RUA
MARINE
ISSUED AT 1141 AM CDT THU AUG 6 2026
LIGHT SOUTH TO SOUTHWEST FLOW WILL PREVAIL THROUGH THE
WEEKEND ALONG WITH SEAS OF 1-3 FEET. PRECIPITATION CHANCES WILL
RANGE FROM 10-30% EACH AFTERNOON.
FIRE WEATHER
ISSUED AT 1141 AM CDT THU AUG 6 2026
KBDI VALUES CONTINUE TO CLIMB, SITTING BETWEEN 500 TO
600. THE SOMEWHAT LOWER DEWPOINTS AND HUMIDITY HAVE DEPARTED WITH
MINIMUM RH VALUES EXPECTED TO RANGE FROM 50% TO 60% EACH AFTERNOON
THROUGH THE REST OF THE WEEK. SCATTERED DAILY AFTERNOON
THUNDERSTORMS (20-40%) ARE EXPECTED EACH DAY THROUGH THE WEEKEND.
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
PUBLIC/FIRE/MARINE...66
AVIATION...07
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