914  
FZUS54 KBRO 131737  
CWFBRO  
 
COASTAL WATERS FORECAST FOR THE LOWER TEXAS COAST  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
1237 PM CDT WED AUG 13 2025  
 
LOWER TEXAS COASTAL WATERS FROM BAFFIN BAY TO THE MOUTH OF THE  
RIO GRANDE OUT 60 NM.  
 
SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST  
1/3 OF THE WAVES, ALONG WITH THE OCCASIONAL HEIGHT OF THE AVERAGE  
HIGHEST 10 PERCENT OF THE WAVES.  
 
GMZ100-140615-  
1237 PM CDT WED AUG 13 2025  
   
SYNOPSIS
 
FAVORABLE CONDITIONS PREVAIL THROUGH AT LEAST THURSDAY  
WITH GENTLE TO MODERATE SOUTHEASTERLY FLOW AND SLIGHT SEAS. THERE  
IS A CHANCE OF ISOLATED SHOWERS AND THUNDERSTORMS OVER THE WATERS  
EACH DAY THROUGH THURSDAY, AND AFTERNOON HEATING MAY LEAD TO  
TEMPORARY SMALL CRAFT EXERCISE CAUTION CONDITIONS ON THE LAGUNA  
MADRE AND NEARSHORE WATERS EACH AFTERNOON. AN INFLUX OF TROPICAL  
MOISTURE EXPECTED AS A TROPICAL WAVE TRACKS TOWARDS THE AREA BY  
FRIDAY, INCREASING SEAS TO 2-4 FEET AND BRINGING A LOW TO  
MODERATE CHANCE (30-50%) OF RAIN FRIDAY AND SATURDAY.  
 

 
 
GMZ130-132-135-140615-  
LAGUNA MADRE FROM THE PORT OF BROWNSVILLE TO THE ARROYO COLORADO-  
LAGUNA MADRE FROM THE ARROYO COLORADO TO 5 NM NORTH OF PORT  
MANSFIELD TX-  
LAGUNA MADRE FROM 5 NM NORTH OF PORT MANSFIELD TO BAFFIN BAY TX-  
1237 PM CDT WED AUG 13 2025  
   
TONIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING SOUTH EARLY  
THIS MORNING. A MODERATE CHOP ON THE BAY, DIMINISHING TO LIGHT  
CHOP EARLY THIS MORNING.    
THURSDAY
 
SOUTH WINDS AROUND 10 KNOTS, BECOMING SOUTHEAST IN  
THE AFTERNOON. A MODERATE CHOP ON THE BAY.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. A MODERATE CHOP  
ON THE BAY.    
FRIDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. A MODERATE CHOP ON THE  
BAY. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS EARLY  
IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. A MODERATE CHOP  
ON THE BAY. A CHANCE OF SHOWERS AND THUNDERSTORMS.    
SATURDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. A MODERATE CHOP ON  
THE BAY. A CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE  
MORNING, THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON.    
SATURDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO  
5 TO 10 KNOTS EARLY IN THE MORNING. A MODERATE CHOP ON THE BAY,  
DIMINISHING TO LIGHT CHOP EARLY IN THE MORNING.    
SUNDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO  
15 KNOTS IN THE AFTERNOON. A MODERATE CHOP ON THE BAY.    
SUNDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO  
5 TO 10 KNOTS AFTER MIDNIGHT. LIGHT CHOP ON THE BAY.    
MONDAY
 
SOUTHEAST WINDS AROUND 5 KNOTS, BECOMING EAST IN THE  
AFTERNOON. LIGHT CHOP ON THE BAY.    
MONDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH  
AFTER MIDNIGHT. LIGHT CHOP ON THE BAY.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
GMZ150-155-140615-  
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-  
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-  
1237 PM CDT WED AUG 13 2025  
   
TONIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING SOUTH EARLY  
THIS MORNING. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST 2 FEET AT  
4 SECONDS.    
THURSDAY
 
SOUTH WINDS AROUND 10 KNOTS, BECOMING SOUTHEAST LATE  
IN THE AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST 2 FEET  
AT 5 SECONDS.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
4 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT 5 SECONDS. A SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.    
FRIDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.  
WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS. A CHANCE OF SHOWERS  
AND THUNDERSTORMS.    
SATURDAY
 
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS 3 TO 4 FEET.  
WAVE DETAIL: SOUTHEAST 3 FEET AT 7 SECONDS. A CHANCE OF SHOWERS  
AND THUNDERSTORMS UNTIL LATE AFTERNOON.    
SATURDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO  
5 TO 10 KNOTS EARLY IN THE MORNING. SEAS 3 TO 4 FEET.    
SUNDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST LATE IN  
THE AFTERNOON. SEAS 2 TO 3 FEET.    
SUNDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.    
MONDAY
 
SOUTHEAST WINDS AROUND 5 KNOTS, BECOMING EAST IN THE  
AFTERNOON. SEAS 2 TO 3 FEET.    
MONDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
GMZ170-175-140615-  
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM  
20 TO 60 NM-  
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM  
20 TO 60 NM-  
1237 PM CDT WED AUG 13 2025  
   
TONIGHT
 
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE  
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS.    
THURSDAY
 
SOUTH WINDS AROUND 10 KNOTS. SEAS 2 TO 3 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 5 SECONDS.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
4 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS. A CHANCE OF  
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. A  
CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING.    
FRIDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 4 FEET AT 6 SECONDS. A CHANCE OF THUNDERSTORMS.  
SHOWERS LIKELY.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET.  
WAVE DETAIL: SOUTHEAST 4 FEET AT 6 SECONDS. A CHANCE OF  
THUNDERSTORMS. SHOWERS LIKELY EARLY IN THE EVENING, THEN A CHANCE  
OF SHOWERS IN THE LATE EVENING AND OVERNIGHT.    
SATURDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.  
WAVE DETAIL: SOUTHEAST 4 FEET AT 7 SECONDS. A CHANCE OF SHOWERS  
AND THUNDERSTORMS EARLY IN THE MORNING, THEN A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.    
SATURDAY NIGHT
 
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS 3 TO  
4 FEET.    
SUNDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST LATE IN  
THE AFTERNOON. SEAS 2 TO 3 FEET. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.    
MONDAY
 
SOUTHEAST WINDS AROUND 5 KNOTS, BECOMING EAST IN THE  
AFTERNOON. SEAS 2 TO 3 FEET. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL LATE AFTERNOON.    
MONDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
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