670  
FXUS64 KLIX 052351  
AFDLIX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE NEW ORLEANS LA  
651 PM CDT MON MAY 5 2025  
   
..NEW AVIATION
 
 
   
SHORT TERM
 
 
(THIS EVENING THROUGH TUESDAY NIGHT)  
ISSUED AT 310 PM CDT MON MAY 5 2025  
 
UPPER LOWS OVER KENTUCKY AND ARIZONA THIS AFTERNOON WITH SHORTWAVE  
RIDGING OVER TEXAS, WHICH EXTENDED NORTHWARD FROM LARGER SCALE  
RIDGING OVER SOUTHERN MEXICO. AT THE SURFACE, HIGH PRESSURE WAS  
CENTERED OVER MISSISSIPPI AND ALABAMA, WITH A WARM FRONT OVER THE  
CENTRAL GULF. MOSTLY SUNNY SKIES ACROSS THE AREA AT MID-  
AFTERNOON, WITH TEMPERATURES RANGING FROM THE MIDDLE 70S TO LOWER  
80S. DEW POINTS REMAINED IN THE UPPER 40S ACROSS NORTHERN PORTIONS  
OF THE AREA, BUT WERE INCREASING THROUGH THE 50S TO AROUND 60  
SOUTH OF INTERSTATE 10.  
 
ARIZONA UPPER LOW WILL MOVE EASTWARD TO NEAR THE TEXAS-NEW MEXICO  
BORDER BY TOMORROW EVENING, AND TO THE TEXAS/OKLAHOMA PANHANDLES  
BY SUNRISE WEDNESDAY. THIS WILL GRADUALLY FORCE THE SURFACE WARM  
FRONT OVER THE GULF NORTHWARD. ISENTROPIC PROCESSES TO THE NORTH  
OF THE WARM FRONT COULD PRODUCE A FEW PATCHES OF LIGHT RAIN  
SHOWERS OVER PORTIONS OF THE AREA LATE TONIGHT.  
 
THE LARGER CONCERN WILL BE AS THE WARM FRONT MOVES OFF THE GULF  
INTO THE AREA LATER IN THE DAY TUESDAY AND TUESDAY NIGHT.  
PRECIPITABLE WATER VALUES THAT WERE NEAR 0.7 INCHES THIS MORNING  
WILL BE IN THE 1.25 TO 1.5 RANGE BY TOMORROW MORNING, NEAR 1.8  
INCHES BY SUNSET, AND COULD BE APPROACHING 2 INCHES OVERNIGHT  
THROUGH SUNRISE WEDNESDAY.  
 
STORMS OVER EAST TEXAS AND WESTERN LOUISIANA WILL MOVE INTO THE  
LOCAL AREA TUESDAY AFTERNOON AND CONTINUE OVERNIGHT TUESDAY NIGHT.  
THERE IS SIGNIFICANT CONCERN FOR CELL TRAINING NEAR THE FRONTAL  
BOUNDARY, WHICH IS EXPECTED TO GRADUALLY BECOME ORIENTED EAST-  
WEST. IT IS STILL A BIT UNCLEAR AS TO EXACTLY WHERE IN OUR AREA  
THIS OCCURS, BUT THERE IS ENOUGH OF A THREAT ACROSS THE ENTIRE  
AREA TO JUSTIFY A FLOOD WATCH OVERNIGHT TUESDAY NIGHT. IT SHOULD  
BE NOTED THAT HEAVY RAIN COULD BEGIN AS EARLY AS TUESDAY  
AFTERNOON, BUT WITH MOST OF THE AREA BEING COMPARATIVELY DRY OVER  
THE LAST 10 DAYS, IT MAY TAKE A FEW HOURS TO START CAUSING ISSUES.  
IF IT APPEARS THE THREAT WILL BEGIN SOONER, WE'LL ADVANCE THE  
START TIME. WIDESPREAD RAIN AMOUNTS OF 3 TO 5 INCHES ARE POSSIBLE  
THROUGH SUNRISE WEDNESDAY WITH LOCALLY HIGHER AMOUNTS LIKELY.  
ADDITIONAL RAIN IS EXPECTED BEYOND THAT POINT. THERE IS POTENTIAL  
FOR SEVERE WEATHER AS WELL, WITH 0-6 KM SHEAR VALUES IN EXCESS OF  
50 KNOTS ACROSS MOST OF THE AREA OVERNIGHT TUESDAY AFTERNOON AND  
TUESDAY NIGHT, WITH HAIL AND DAMAGING WINDS THE MAIN CONCERNS.  
 
WILL NOT MAKE ANY RADICAL CHANGES TO THE NBM TEMPERATURE GUIDANCE,  
AS THE WARM FRONTAL LOCATION WILL BE THE DETERMINING FACTOR ON  
TUESDAY/TUESDAY NIGHT TEMPERATURES.  
 

 
   
LONG TERM
 
 
(WEDNESDAY THROUGH SUNDAY NIGHT)  
ISSUED AT 310 PM CDT MON MAY 5 2025  
 
A FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY EVENING AS OUR WET  
PATTERN CONTINUES INTO THE MID TO LATE WEEK PERIOD. THE HEAVIEST  
RAIN FROM TUESDAY AFTERNOON AND TUESDAY NIGHT WILL LIKELY  
CONTINUE INTO PARTS OF WEDNESDAY BEFORE WE SEE A BRIEF PAUSE IN  
THE RAINFALL. THIS PAUSE LOOKS TO LAST FROM LATE WEDNESDAY UNTIL  
AROUND MIDDAY THURSDAY BEFORE OUR NEXT ROUND OF RAIN AND STORMS  
ARRIVES FROM THE WEST. THIS THURSDAY ROUND WILL BE ASSOCIATED WITH  
A SHORTWAVE THAT SWEEPS ACROSS THE CENTRAL AND SOUTHERN PLAINS,  
MAKING ITS WAY EAST. WE GET ANOTHER PAUSE DURING THE DAY ON FRIDAY  
BEFORE YET ANOTHER ROUND OF SHOWERS AND STORMS ARRIVES LATE IN  
THE DAY, ASSOCIATED WITH A FRONTAL BOUNDARY THAT PUSHES INTO THE  
AREA. BASICALLY THE PATTERN THROUGH SATURDAY WILL BE RAIN, PAUSE,  
RAIN, PAUSE, RAIN. WHILE THE HEAVIEST OF TOTALS ARE EXPECTED WITH  
THE LATE TUESDAY INTO EARLY WEDNESDAY ROUND, WE COULD SEE AN  
ADDITIONAL COUPLE INCHES FROM WEDNESDAY THROUGH SATURDAY DEPENDING  
ON WHERE THE HEAVIEST OF RAIN BANDS SETUP.  
 
ONE GOOD THING TO COME OUT OF OUR WET PATTERN IS IT WILL KEEP  
TEMPERATURES AROUND OR EVEN BELOW AVERAGE THROUGHOUT THE FORECAST  
PERIOD. IT WILL HOWEVER STILL BE VERY HUMID THE ENTIRE PERIOD...SO  
NOT A TON OF GOOD NEWS.  
 

 
   
AVIATION
 
 
(00Z TAFS)  
ISSUED AT 640 PM CDT MON MAY 5 2025  
 
VFR CONDITIONS WILL CONTINUE OVERNIGHT WHILST MID TO UPPER LEVEL  
CLOUD COVERAGE INCREASES AHEAD OF THE NEXT FRONTAL SYSTEM  
CURRENTLY OVER TEXAS. MVFR CONDITIONS WITH -SHRA WILL INCREASE IN  
COVERAGE THROUGH THE LATE MORNING HOURS AND SOME OF THESE  
UPDRAFTS WILL GET TALLER AND STRONGER WITH INCREASING INSTABILITY  
FROM DAYTIME HEATING IN THE AFTERNOON. TSRA LINES VIA PROB30S HAVE  
BEEN ADDED FOR THE LATE AFTERNOON HOURS. THE HIGHEST CONFIDENCE  
OF IMPACTS TO TERMINALS BEGINS CLOSER TO THE END OF THE FORECAST  
PERIOD WHERE A LARGE COMPLEX OF STORMS WILL MOVE IN FROM THE  
NORTHWEST BRINGING WIDESPREAD REDUCED CIG/VIS TO IFR OR EVEN LIFR  
AT TIMES AND GUSTY WINDS UPWARDS OF 30 KNOTS ESPECIALLY AT NEW  
TUESDAY NIGHT. EXPECT A CONTINUATION OF THESE CONDITIONS THROUGH  
WEDNESDAY MORNING WITH FUTURE UPDATES.  
 

 
   
MARINE
 
 
ISSUED AT 310 PM CDT MON MAY 5 2025  
 
WINDS WILL CONTINUE TO SLOWLY TURN TOWARDS THE SOUTHEAST TODAY.  
LATER THIS EVENING WE WILL SEE WINDS INCREASE UP TO AROUND 15-20  
KNOTS, HIGHEST FOR THE WESTERN GULF WATERS BUT STILL INCREASING  
SLIGHTLY FOR ALL AREAS. WENT WITH A SMALL CRAFT EXERCISE CAUTION FOR  
THE WESTERN WATERS STARTING AT 4PM THIS AFTERNOON, THIS WILL LIKELY  
NEED TO BE EXTENDED EVENTUALLY AS THE WINDS STAY UP THROUGH EARLY  
WEDNESDAY. ADDITIONALLY, WE WILL SEE MULTIPLE ROUNDS OF SHOWERS AND  
THUNDERSTORMS THROUGHOUT THE WEEK WHICH COULD BRING LOCALIZED  
HIGHER WINDS AND WAVES.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
MCB 59 78 66 79 / 20 80 90 90  
BTR 65 81 69 81 / 30 80 90 90  
ASD 63 80 68 82 / 20 50 80 90  
MSY 70 82 73 81 / 20 60 70 90  
GPT 65 80 69 81 / 20 40 70 90  
PQL 60 80 67 82 / 20 30 60 80  
 

 
   
LIX WATCHES/WARNINGS/ADVISORIES
 
 
LA...FLOOD WATCH FROM TUESDAY EVENING THROUGH THURSDAY EVENING FOR  
LAZ034>037-039-046>048-056>060-064>071-076>090.  
 
GM...NONE.  
MS...FLOOD WATCH FROM TUESDAY EVENING THROUGH THURSDAY EVENING FOR  
MSZ068>071-077-083>088.  
 
GM...NONE.  

 
 

 
 
SHORT TERM...RW  
LONG TERM....HL  
AVIATION...TJS  
MARINE...HL  
 
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