734  
FXUS64 KBRO 130327  
AFDBRO  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
1027 PM CDT SAT JUL 12 2025  
   
..NEW DISCUSSION, MARINE
 
 
   
DISCUSSION
 
 
ISSUED AT 1025 PM CDT SAT JUL 12 2025  
 
AN AREA OF HIGH PRESSURE OVER THE GULF WILL EXPAND OVER DEEP SOUTH  
TEXAS AND THE RIO GRANDE VALLEY. THIS WILL KEEP RAIN CHANCES VERY  
LOW (LESS THAN 10%). HOWEVER, A STRAY SHOWER OR THUNDERSTORM WITH  
THE AFTERNOON SEABREEZE STILL REMAINS POSSIBLE. SOUTHEASTERLY WINDS  
ARE EXPECTED TO PERSIST OVER THE REGION THROUGH THE FORECAST PERIODS  
WITH WINDS GUSTING UP TO 25 MPH POSSIBLE FOR MOSTLY THE VALLEY AND  
RIGHT ALONG THE COAST.  
 
AS FOR TEMPERATURES, THE LOW TEMPERATURES ARE GENERALLY EXPECTED TO  
BE IN THE 70S FOR MOST OF DEEP SOUTH TEXAS AND THE RIO GRANDE  
VALLEY. HOWEVER A FEW LOCATIONS FOR THE EXTREME SOUTHERN PARTS OF  
THE CWA COULD APPROACH THE 80S. THE HIGH TEMPERATURES ARE EXPECTED  
TO GENERALLY BE IN THE 90S, HOWEVER A FEW PLACES IN STARR AND ZAPATA  
COUNTIES COULD BE IN THE TRIPLE DIGITS. THE HEAT RISK FOR THE  
FORECAST PERIOD WILL MOSTLY BE MODERATE (LEVEL 2 OF 4) FOR THE  
REGION. THE HEAT INDICES ARE EXPECTED TO BE IN THE RANGE OF 105-108  
AND THUS BELOW HEAT ADVISORY CRITERIA. HOWEVER IT IS STILL IMPORTANT  
TO PRACTICE HEAT SAFETY TO PREVENT ANY HEAT-RELATED ILLNESSES.  
 
INCREASING SWELL AFFECTING THE LOWER TEXAS COAST WILL ALLOW FOR  
MODERATE RISK OF RIP CURRENT FOR THE NEXT SEVERAL DAYS. BE CAREFUL  
IF VENTURING INTO THE WATER AND REMEMBER RIP CURRENTS ARE HIGHEST  
NEAR PIERS AND JETTIES.  
 

 
   
AVIATION
 
 
(00Z TAFS)  
ISSUED AT 625 PM CDT SAT JUL 12 2025  
 
VFR CONDITIONS ARE EXPECTED TO LAST SEVERAL MORE HOURS THROUGH THE  
EVENING AND EARLY OVERNIGHT HOURS. HOWEVER, WITH THE SOUTHEASTERLY  
FLOW OVER THE REGION, LOW-LEVEL CLOUDS ARE LIKELY TO MOVE IN,  
RESULTING IN MVFR CONDITIONS FOR THE REST OF THE OVERNIGHT HOURS.  
VFR CONDITIONS SHOULD RETURN DURING THE MORNING HOURS AS  
SOUTHEASTERLY WINDS START TO GUST UP TO 25 KNOTS.  
 

 
   
MARINE
 
 
ISSUED AT 1025 PM CDT SAT JUL 12 2025  
 
GENERALLY FAVORABLE CONDITIONS ARE EXPECTED WITH LIGHT TO MODERATE  
SOUTHEASTERLY WINDS AND SLIGHT TO MODERATE SEAS. HIGH PRESSURE OVER  
THE LOWER TEXAS COAST WILL KEEP RAIN CHANCES TO A MINIMUM THROUGH  
THE PERIOD.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
BROWNSVILLE 80 93 79 93 / 0 0 0 10  
HARLINGEN 78 96 77 95 / 0 10 0 10  
MCALLEN 80 97 80 97 / 0 10 0 10  
RIO GRANDE CITY 78 98 77 97 / 10 0 0 0  
SOUTH PADRE ISLAND 80 87 80 87 / 0 0 0 10  
BAYVIEW/PORT ISABEL 79 92 79 92 / 0 0 0 10  
 

 
   
BRO WATCHES/WARNINGS/ADVISORIES
 
 
TX...NONE.  
GM...NONE.  

 
 

 
 
SHORT TERM...64-KATZ  
LONG TERM....64-KATZ  
AVIATION...64  
 
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