504
FXUS64 KLCH 091738
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1238 PM CDT TUE SEP 9 2025
..NEW SHORT TERM, LONG TERM, AVIATION, MARINE, FIRE WEATHER
KEY MESSAGES
- SURFACE HIGH PRESSURE WILL ALLOW FOR DRY CONDITIONS WITH COOLER
THAN NORMAL NIGHT TIME LOWS TONIGHT.
- TEMPERATURES WILL WARM WEDNESDAY AND THE LATTER PART OF THE
WEEK INTO THE WEEKEND AS SURFACE HIGH PRESSURE WEAKENS AND WINDS
BECOME MORE FROM THE EAST AND SOUTHEAST.
- AN UPPER LEVEL HIGH WILL BUILD OVER THE REGION LATE IN THE WEEK
INTO THE WEEKEND KEEPING RAIN CHANCES OUT OF THE FORECAST.
SHORT TERM
(TONIGHT THROUGH THURSDAY NIGHT)
ISSUED AT 1235 PM CDT TUE SEP 9 2025
SEEING A BIT OF A CU BUILD UP JUST EAST OF THE ATCHAFALAYA BASIN
AS EASTERLY LOW LEVEL FLOW TRIES TO BRING IN SOME HIGHER MOISTURE.
THIS HIGHER MOISTURE MAY CLIP ALONG THE COAST THROUGH WEDNESDAY
AFTERNOON AND THIS WILL BE THE ONLY LOCATIONS THAT MAY SEE AN
OUTSIDE CHANCE OF A SHOWER OR STORM.
OTHERWISE, MAINLY DRY CONTINENTAL AIR WILL BE MAINTAINED OVER THE
FORECAST AREA. THIS WILL BRING SOME COOLER TEMPERATURES SLIGHTLY
BELOW CLIMO NORM AGAIN TONIGHT. THEN THE AIR MASS WILL SLOWLY
MODIFY WITH NEAR CLIMO NORMS EACH DAY AND NIGHT FOR AIR
TEMPERATURES. HUMIDITY VALUES WILL REMAIN LOW THAT WILL KEEP
AFTERNOON HEAT AT BEARABLE LEVELS.
RUA
LONG TERM
(FRIDAY THROUGH NEXT MONDAY)
ISSUED AT 1230 PM CDT TUE SEP 9 2025
GOOD CONSENSUS IN AN UPPER LEVEL RIDGE BUILDING OVER THE REGION
FOR THE END OF THE WEEK INTO THE WEEKEND. THE DRY AND SUBSIDENT
AIR ALOFT WILL KEEP A LID ON CONVECTION AND NO SIGNIFICANT SHOWER
ACTIVITY IS EXPECTED.
AS THE DRY AIR MASS MODIFIES AND LOW LEVEL FLOW BECOMES A BIT MORE
SOUTHEASTERLY, EXPECT AIR TEMPERATURES TO BE ON THE WARM SIDE AND
MORE SUMMER-LIKE. HOWEVER, WITH SOME MIXING OF THE DRY AIR ABOVE
THE SURFACE DURING MAX HEATING, HEAT INDEX WILL BE KEPT IN CHECK
AND NEAR A JUST A LITTLE ABOVE THE AIR TEMPERATURE DURING THE
PERIOD.
RUA
AVIATION
(18Z TAFS)
ISSUED AT 1228 PM CDT TUE SEP 9 2025
A DRY AIR MASS WILL CONTINUE OVER THE FORECAST AREA DURING THE
PERIOD WITH LIGHT EASTERLY WINDS. NOT LOOKING AT MUCH IN THE WAY
OF CLOUD COVER AND VFR CONDITIONS ARE EXPECTED TO PERSIST.
RUA
MARINE
ISSUED AT 1226 PM CDT TUE SEP 9 2025
SURFACE HIGH RIDGING DOWN FROM THE NORTHEAST WITH A STALLED
FRONTAL BOUNDARY AND LOWER PRESSURE OVER THE MIDDLE GULF.
INTERACTION BETWEEN THESE FEATURES WILL ALLOW FOR A LIGHT TO MODEST
EASTERLY FLOW FOR THE REMAINDER OF THE WEEK ALONG WITH LIGHT TO
MODEST SEAS. A SCATTERED SHOWERS OR STORMS WILL BE POSSIBLE INTO
WEDNESDAY AS A DISTURBANCE MOVES ALONG THE FRONT, OTHERWISE A DRY
AIRMASS ALOFT WILL HELP KEEP SIGNIFICANT SHOWER ACTIVITY OUT OF
THE FORECAST FOR THURSDAY UNTIL THE END OF THE PERIOD.
FIRE WEATHER
ISSUED AT 1222 PM CDT TUE SEP 9 2025
A DRY AIRMASS WILL SETTLE OVER THE REGION DURING THE PERIOD. THIS
WILL BRING LITTLE TO NO CHANCE FOR SIGNIFICANT RAIN AND LOWER THAN
NORMAL HUMIDITY. AFTERNOON MINIMUM RELATIVE HUMIDITY VALUES WILL
BE BELOW 50 PERCENT ON WEDNESDAY, AND BELOW 40 PERCENT FOR
THURSDAY AND FRIDAY.
PRELIMINARY POINT TEMPS/POPS
AEX 66 92 66 94 / 0 0 0 0
LCH 68 92 72 93 / 0 10 0 0
LFT 70 92 70 93 / 0 10 0 0
BPT 67 92 73 93 / 0 0 0 10
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...NONE.
SHORT TERM...07
LONG TERM....07
AVIATION...07
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page