265  
FXUS64 KBRO 050524 AAA  
AFDBRO  
 
AREA FORECAST DISCUSSION...UPDATED  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
1224 AM CDT SUN JUL 5 2026  
   
..NEW AVIATION
 
 
   
KEY MESSAGES
 
 
UPDATED AT 1222 AM CDT SUN JUL 5 2026  
 
- DAYTIME HIGHS IN THE UPPER 90S/LOWER 100S AND OVERNIGHT LOWS IN  
THE UPPER 70S/LOWER 80S AS WELL AS AFTERNOON HEAT INDICES OF  
AROUND 100-110 F CONTINUE.  
 
- BREEZY ONSHORE WINDS (GUSTS TO 25-30+ MPH) RETURN LATER IN THE  
WEEK, BUILDING MOISTURE CONTENT AND INCREASING HEAT RISKS FROM  
MINOR AND MODERATE (LEVELS 1 AND 2 OF 4) TO MAINLY MODERATE BY  
THURSDAY.  
 
- CHANCES OF RAIN ALONG THE SEABREEZE COULD INCREASE TO A LOW  
(15-30%) CHANCE EACH AFTERNOON BEGINNING FRIDAY.  
 
- A LOW RISK OF RIP CURRENTS PREVAILS THROUGH SUNDAY AFTERNOON.  
 

 
   
DISCUSSION
 
 
ISSUED AT 1014 PM CDT SAT JUL 4 2026  
 
MOST OF THE UPCOMING 7 DAY FORECAST SHOULD REMAIN NEARLY THE SAME AS  
THE PAST SEVERAL DAYS ACROSS DEEP SOUTH TEXAS. HIGH TEMPERATURES ARE  
GENERALLY ANTICIPATED TO RISE INTO MOSTLY THE MID 80S ALONG THE  
COAST AND UPPER 90S INLAND THOUGH PEAKING IN THE LOWER 100S IN  
PORTIONS OF THE MIDDLE AND UPPER RGV. AFTERNOON MAXIMUM HEAT INDICES  
ARE LIKELY TO CONTINUE RANGING AROUND 100-110 F. OVERNIGHT LOWS FALL  
TO THE UPPER 70S AS WELL AS LOWER 80S ACROSS COASTAL AND ISLAND  
CAMERON COUNTY.  
 
WEAK HIGH PRESSURE ALOFT WANES A BIT THROUGH THE BEGINNING OF THIS  
UPCOMING WEEK. YET, THE LACK OF ANY SIGNIFICANT DISTURBANCES SHOULD  
KEEP DRY CONDITIONS THOUGH AN ISOLATED SHOWER OR TWO IS POSSIBLE  
EACH AFTERNOON. MEANWHILE, WEAKENING ONSHORE SOUTHEASTERLY FLOW  
(GUSTING TO 15-25 MPH) WILL LIKELY REDUCE HEAT RISKS FROM MAINLY  
MODERATE ON SUNDAY TO MINOR AND MODERATE ACROSS THE NORTHERN  
RANCHLANDS AND RGV, RESPECTIVELY, MONDAY THROUGH WEDNESDAY.  
 
BY THE MIDDLE OR LATER PART OF THE WEEK, A TIGHTENING PRESSURE  
GRADIENT MAY RESULT IN GUSTS OF 25-30+ MPH IN THE AFTERNOON, PUMPING  
ABOVE AVERAGE MOISTURE CONTENT INLAND FROM A POTENTIAL DISTURBANCE  
OVER THE BAY OF CAMPECHE, LEADING TO MAINLY MODERATE HEAT RISKS BY  
THURSDAY. THIS COULD ALSO RESULT IN A LOW (15-30%) CHANCE OF RAIN  
FROM DIURNALLY-DRIVEN SHOWERS AND THUNDERSTORMS DEVELOPING ALONG  
THE AFTERNOON SEABREEZE BOUNDARY, BEGINNING FRIDAY AND CONTINUING  
OVER THE WEEKEND. AS A SIDE NOTE, THE CLIMATE PREDICTION CENTER  
INDICATES A MEDIUM CHANCE OF ABOVE NORMAL RAINFALL IN THEIR 6-10  
DAY OUTLOOK AS WELL A LOW TO MEDIUM CHANCE IN THE 8-14 DAY OUTLOOK  
(INTO THE MIDDLE OF JULY).  
 
A LOW RISK OF RIP CURRENTS CONTINUES THROUGH SUNDAY AFTERNOON.  
 

 
   
AVIATION
 
 
(06Z TAFS)  
ISSUED AT 1222 AM CDT SUN JUL 5 2026  
 
VFR WILL PREVAIL AT THE AERODROMES THROUGH THE NEXT 24 HOURS, WITH  
BREEZY DAYTIME WINDS, LIGHTER WINDS AT NIGHT, AND CLEAR TO PARTLY  
CLOUDY SKIES.  
 

 
   
MARINE
 
 
ISSUED AT 1014 PM CDT SAT JUL 4 2026  
 
GENTLE TO MODERATE, FRESH AT TIMES, SOUTHEASTERLY WINDS CONTINUE  
THROUGH TUESDAY NIGHT BEFORE INCREASING BACK TO MODERATE TO FRESH,  
WITH POSSIBLE PERIODS OF SMALL CRAFT EXERCISE CAUTION CONDITIONS  
BY WEDNESDAY AS A PRESSURE GRADIENT TIGHTENS. SLIGHT TO MODERATE  
(1-3 FT) SEAS BECOME MODERATE (2-4 FT) BY THE MIDDLE OF THE WEEK  
AS WELL. MAINLY DRY CONDITIONS PERSIST, POTENTIALLY INCREASING TO  
A LOW (15-30%) CHANCE OVER THIS UPCOMING WEEK.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
BROWNSVILLE 95 80 95 79 / 0 0 0 0  
HARLINGEN 97 76 97 76 / 0 0 10 0  
MCALLEN 101 79 101 79 / 0 0 10 0  
RIO GRANDE CITY 101 78 101 77 / 0 0 0 0  
SOUTH PADRE ISLAND 88 81 88 81 / 10 0 0 0  
BAYVIEW/PORT ISABEL 93 78 92 78 / 0 0 0 0  
 

 
   
BRO WATCHES/WARNINGS/ADVISORIES
 
NONE.  
 

 
 

 
 
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