065  
FXUS64 KBRO 041113 AAA  
AFDBRO  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
613 AM CDT FRI SEP 4 2026  
   
..NEW AVIATION
 
 
   
KEY MESSAGES
 
 
UPDATED AT 611 AM CDT FRI SEP 4 2026  
 
- MAJOR (LEVEL 3 OF 4) TO EXTREME (LEVEL 4 OF 4) HEAT RISK IS  
EXPECTED THROUGHOUT MUCH OF DEEP SOUTH TEXAS THROUGH NEXT WEEK.  
 
- A COMBINATION LOW AFTERNOON RELATIVE HUMIDITY, DRY GRASSES, AND  
HOT TEMPERATURES MAY RAISE CONCERNS FOR FAVORABLE FIRE WEATHER  
THROUGH FRIDAY.  
 
- SEA BREEZE SHOWERS AND THUNDERSTORMS EAST OF I-69C ARE POSSIBLE  
EACH AFTERNOON LABOR DAY WEEKEND AND CONTINUING INTO EARLY NEXT  
WEEK.  
 

 
   
DISCUSSION
 
 
ISSUED AT 1007 PM CDT THU SEP 3 2026  
 
WILL CONTINUE TO SEE HOT TEMPERATURES THROUGH THIS WEEKEND WITH  
AFTERNOON HIGHS REACHING INTO THE TRIPLE DIGITS FOR MOST  
LOCATIONS. CURRENT HEAT INDICES MAY REMAIN JUST SHY OF HEAT  
ADVISORY CRITERIA FOR FRIDAY, BUT WILL CONTINUE TO MONITOR.  
TEMPERATURES WILL REMAIN IN THE UPPER 90S TO LOW TRIPLE DIGITS  
NEXT WEEK. A MAJOR (LEVEL 3 OF 4) TO EXTREME (LEVEL 4 OF 4) HEAT  
RISK WILL CONTINUE IN NEXT WEEK. IF SPENDING TIME OUTDOORS, CONTINUE TO  
PRACTICE HEAT SAFETY TO PREVENT HEAT RELATED ILLNESSES.  
 
THE GOOD NEWS? SOME RAIN CHANCES RETURN TO THE FORECAST SATURDAY  
THROUGH THURSDAY, MAINLY ALONG I-69C AND EASTWARD, ASSOCIATED  
WITH THE SEABREEZE. BEST CHANCES WILL BE ON TUESDAY AND WEDNESDAY  
(10-40%), THOUGH WILL SEE LOW CHANCES (10-30%) FOR THE LABOR DAY  
WEEKEND. RAIN CHANCES COULD POTENTIALLY HELP COOL THINGS OFF IN A  
FEW LOCATIONS AS WELL.  
 
WILL CONTINUE TO SEE THE POTENTIAL FOR RAPID WILDFIRE SPREAD  
THROUGH FRIDAY DUE TO DRY CONDITIONS AND SLIGHTLY ELEVATED WINDS.  
OUTDOOR BURNING IS NOT RECOMMENDED.  
 

 
   
AVIATION
 
 
(12Z TAFS)  
ISSUED AT 611 AM CDT FRI SEP 4 2026  
 
VFR IS ANTICIPATED AT THE AERODROMES THROUGH THE NEXT 24 HOURS.  
WINDS WILL BECOME BREEZY TODAY WITH STRONGER GUSTS BEFORE  
DIMINISHING AROUND SUNSET. GENERALLY PARTLY CLOUDY SKIES WILL  
PREVAIL WITH NON-FREE SKIES.  
 

 
   
MARINE
 
 
ISSUED AT 1007 PM CDT THU SEP 3 2026  
 
WHILE GENERALLY FAVORABLE CONDITIONS WILL PREVAIL, A SLIGHTLY  
ENHANCED PRESSURE GRADIENT ALONG THE IMMEDIATE COAST MAY RESULT  
IN BRIEF SMALL CRAFT EXERCISE CAUTION CONDITIONS ON FRIDAY ALONG  
THE LAGUNA MADRE. OTHERWISE, EXPECT LIGHT TO MODERATE SOUTHEASTERLY  
WINDS WITH 2 TO 3 FT SEAS AND 5 TO 6 SECOND PERIODS.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
BROWNSVILLE 99 81 98 81 / 0 0 10 0  
HARLINGEN 102 77 101 77 / 0 0 20 0  
MCALLEN 104 82 103 81 / 0 0 20 10  
RIO GRANDE CITY 105 80 103 79 / 0 0 10 20  
SOUTH PADRE ISLAND 90 82 90 82 / 0 0 10 0  
BAYVIEW/PORT ISABEL 97 79 96 79 / 0 0 10 0  
 

 
   
BRO WATCHES/WARNINGS/ADVISORIES
 
NONE.  
 

 
 

 
 
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