890  
FXUS64 KBRO 290545 AAA  
AFDBRO  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
1245 AM CDT FRI MAY 29 2026  
   
..NEW AVIATION  
 
   
KEY MESSAGES  
 
UPDATED AT 1239 AM CDT FRI MAY 29 2026  
 
* OVERALL WARM AND DRY CONDITIONS EXPECTED INTO NEXT WEEK.  
 
* LOW TO MODERATE (20 TO 50%) CHANCES OF ISOLATED TO SCATTERED  
SHOWERS/THUNDERSTORMS RETURN TUESDAY AND CONTINUE THROUGH THE  
WEEK.  
 
 
   
DISCUSSION  
 
ISSUED AT 1021 PM CDT THU MAY 28 2026  
 
HIGH PRESSURE WILL SUPPORT A DRY WARMING PATTERN INTO THIS WEEKEND.  
HIGH TEMPERATURES WILL HANG BELOW AVERAGE FOR LATE MAY/EARLY JUNE  
WITH HIGHS IN THE MID 90S AND HEAT INDICES IN THE UPPER 90S (RIO  
GRANDE PLAINS, RANCHLANDS WEST OF I69C) TO MID 100S (RGV). LOW  
TEMPERATURES AROUND AVERAGE IN THE 70S (NEAR 80 ALONG THE COAST).  
MINOR HEAT RISK WILL BUILD TO MODERATE INTO THE WEEKEND. BE SURE TO  
PRACTICE HEAT SAFETY, AS RISK OF HEAT RELATED ILLNESS WILL BE  
ELEVATED THIS WEEKEND.  
 
RAIN CHANCES ARE VERY LOW (LESS THAN 10%) THROUGH THE REST OF THE  
WEEK INTO THE WEEKEND. CHANCES OF RAIN AND THUNDERSTORMS INCREASE  
AGAIN EARLY TO MID NEXT WEEK AS SHORTWAVES INTERACT WITH OUR  
TROPICAL MOISTURE ALONG THE SEABREEZE. LOW TO MODERATE RAIN CHANCES  
(20-50%) WILL PERSIST AS EARLY AS MONDAY NIGHT THROUGH THE REMAINDER  
OF THE FORECAST PERIOD, WITH THE GREATEST CHANCES TUESDAY  
(30-50%).  
 
 
   
AVIATION  
 
(06Z TAFS)  
ISSUED AT 1239 AM CDT FRI MAY 29 2026  
 
PREDOMINANTLY VFR CONDITIONS ARE FORECAST TO CONTINUE THROUGH THE  
PERIOD, THOUGH SOME BRIEF MVFR CEILINGS ARE POSSIBLE OVERNIGHT,  
PRIMARILY AT MFE. WINDS ARE FORECAST TO BE LIGHT AND VARIABLE  
OVERNIGHT, INCREASING OUT OF THE SOUTHEAST AFTER SUNRISE.  
 
 
   
MARINE  
 
ISSUED AT 1021 PM CDT THU MAY 28 2026  
 
SOUTHERLY TO ONSHORE GENTLE TO MODERATE FLOW WITH SLIGHT SEAS WILL  
PREVAIL THROUGH THE PERIOD. RAIN CHANCES REMAIN LOW (LESS THAN 10%)  
THROUGH THE WEEKEND, INCREASING AGAIN EARLY TO MID NEXT WEEK.  
 
 
   
PRELIMINARY POINT TEMPS/POPS  
 
BROWNSVILLE 93 78 93 79 / 0 0 0 0  
HARLINGEN 93 74 94 76 / 0 0 0 0  
MCALLEN 97 77 97 78 / 0 0 0 0  
RIO GRANDE CITY 97 75 97 76 / 0 0 0 0  
SOUTH PADRE ISLAND 86 81 86 82 / 0 0 0 0  
BAYVIEW/PORT ISABEL 90 77 91 79 / 0 0 0 0  
 
 
   
BRO WATCHES/WARNINGS/ADVISORIES  
 
TX...NONE.  
GM...NONE.  
 
 
 
 
SHORT TERM...69  
LONG TERM....69  
AVIATION...60-BE  
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