040  
FZUS54 KBRO 030511  
CWFBRO  
 
COASTAL WATERS FORECAST FOR THE LOWER TEXAS COAST  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
1211 AM CDT WED SEP 3 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.  
 
GMZ100-031815-  
1211 AM CDT WED SEP 3 2025  
   
SYNOPSIS
 
FAVORABLE MARINE CONDITIONS ARE EXPECTED TO CONTINUE  
THROUGH THE PERIOD. LIGHT TO MODERATE WINDS WILL LIKELY CONTINUE  
TO SUPPORT SLIGHT SEAS ALONG THE LOWER TEXAS COAST. SHOWERS AND  
THUNDERSTORMS WILL BE POSSIBLE OVER THE WATERS THROUGH WEDNESDAY  
MORNING, WITH ADDITIONAL RAIN CHANCES RETURNING THIS WEEKEND.  
 

 
 
GMZ130-132-135-031815-  
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-  
1211 AM CDT WED SEP 3 2025  
   
TODAY
 
NORTHWEST WINDS AROUND 5 KNOTS, BECOMING NORTH LATE THIS  
MORNING, THEN BECOMING NORTHEAST EARLY THIS AFTERNOON, BECOMING  
EAST LATE THIS AFTERNOON. SMOOTH ON THE BAY, INCREASING TO LIGHT  
CHOP THIS AFTERNOON.    
TONIGHT
 
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH EARLY IN THE  
MORNING. LIGHT CHOP ON THE BAY, DIMINISHING TO SMOOTH EARLY IN  
THE MORNING.    
THURSDAY
 
SOUTHWEST WINDS AROUND 5 KNOTS, BECOMING EAST IN THE  
AFTERNOON. SMOOTH ON THE BAY, INCREASING TO LIGHT CHOP IN THE  
AFTERNOON.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING SOUTH  
5 TO 10 KNOTS AFTER MIDNIGHT. A MODERATE CHOP ON THE BAY,  
DIMINISHING TO LIGHT CHOP EARLY IN THE MORNING.    
FRIDAY
 
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST 10 TO  
15 KNOTS IN THE AFTERNOON. A MODERATE CHOP ON THE BAY.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING AROUND  
10 KNOTS AFTER MIDNIGHT. A MODERATE CHOP ON THE BAY. A SLIGHT  
CHANCE OF SHOWERS IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER  
MIDNIGHT.    
SATURDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO  
15 KNOTS IN THE AFTERNOON. A MODERATE CHOP ON THE BAY. A CHANCE  
OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE MORNING, THEN  
A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.    
SATURDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING SOUTH  
5 TO 10 KNOTS EARLY IN THE MORNING. A MODERATE CHOP ON THE BAY,  
DIMINISHING TO LIGHT CHOP EARLY IN THE MORNING. A CHANCE OF  
SHOWERS.    
SUNDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING AROUND 10 KNOTS  
LATE IN THE AFTERNOON. LIGHT CHOP ON THE BAY. SHOWERS LIKELY WITH  
A CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH  
EARLY IN THE MORNING. LIGHT CHOP ON THE BAY. A CHANCE OF  
THUNDERSTORMS.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
GMZ150-155-031815-  
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-  
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-  
1211 AM CDT WED SEP 3 2025  
   
TODAY
 
NORTHWEST WINDS 5 TO 10 KNOTS, BECOMING NORTHEAST LATE  
THIS AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL: NORTH 2 FEET AT  
3 SECONDS AND EAST 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF  
SHOWERS EARLY THIS MORNING.    
TONIGHT
 
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH EARLY IN THE  
MORNING. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST 2 FEET AT 4 SECONDS  
AND SOUTHEAST 1 FOOT AT 7 SECONDS.    
THURSDAY
 
SOUTHWEST WINDS AROUND 5 KNOTS, BECOMING EAST EARLY  
IN THE AFTERNOON, THEN INCREASING TO 5 TO 10 KNOTS LATE IN THE  
AFTERNOON. SEAS 1 TO 2 FEET. WAVE DETAIL: EAST 1 FOOT AT  
6 SECONDS.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING AROUND  
10 KNOTS AFTER MIDNIGHT. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST  
2 FEET AT 5 SECONDS.    
FRIDAY
 
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST 10 TO  
15 KNOTS LATE IN THE AFTERNOON. SEAS 1 TO 2 FEET. WAVE DETAIL:  
SOUTHEAST 2 FEET AT 4 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE  
AFTERNOON.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING SOUTH  
EARLY IN THE MORNING. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST  
2 FEET AT 4 SECONDS. A SLIGHT CHANCE OF SHOWERS IN THE EVENING,  
THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS  
AFTER MIDNIGHT.    
SATURDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING AROUND  
10 KNOTS LATE IN THE AFTERNOON. SEAS 2 TO 3 FEET. A CHANCE OF  
THUNDERSTORMS. SHOWERS LIKELY UNTIL LATE AFTERNOON, THEN A CHANCE  
OF SHOWERS LATE IN THE AFTERNOON.    
SATURDAY NIGHT
 
SOUTHEAST WINDS AROUND 10 KNOTS, BECOMING SOUTH  
EARLY IN THE MORNING. SEAS 2 TO 3 FEET. A CHANCE OF SHOWERS IN  
THE EVENING. A CHANCE OF THUNDERSTORMS. SHOWERS LIKELY AFTER  
MIDNIGHT.    
SUNDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.  
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT
 
SOUTHEAST WINDS AROUND 10 KNOTS, BECOMING SOUTH  
EARLY IN THE MORNING. SEAS 2 TO 4 FEET. A CHANCE OF  
THUNDERSTORMS.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
GMZ170-175-031815-  
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-  
1211 AM CDT WED SEP 3 2025  
   
TODAY
 
NORTH WINDS 5 TO 10 KNOTS, BECOMING NORTHEAST THIS  
AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL: NORTHEAST 2 FEET AT  
4 SECONDS AND EAST 1 FOOT AT 8 SECONDS. A SLIGHT CHANCE OF  
THUNDERSTORMS THIS MORNING. A SLIGHT CHANCE OF SHOWERS.    
TONIGHT
 
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH EARLY IN THE  
MORNING. SEAS 2 TO 3 FEET. WAVE DETAIL: NORTHEAST 2 FEET AT  
4 SECONDS AND EAST 1 FOOT AT 7 SECONDS.    
THURSDAY
 
SOUTHWEST WINDS AROUND 5 KNOTS, BECOMING WEST AROUND  
5 KNOTS LATE IN THE MORNING, THEN BECOMING NORTHEAST EARLY IN THE  
AFTERNOON, BECOMING EAST AROUND 5 KNOTS LATE IN THE AFTERNOON.  
SEAS 1 TO 2 FEET. WAVE DETAIL: EAST 1 FOOT AT 6 SECONDS.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING AROUND  
10 KNOTS AFTER MIDNIGHT. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST  
2 FEET AT 4 SECONDS.    
FRIDAY
 
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST LATE IN  
THE AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL: EAST 2 FEET AT  
5 SECONDS. A SLIGHT CHANCE OF SHOWERS.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING AROUND  
10 KNOTS AFTER MIDNIGHT. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST  
2 FEET AT 4 SECONDS. A CHANCE OF SHOWERS IN THE EVENING, THEN  
SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.    
SATURDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.  
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.    
SATURDAY NIGHT
 
SOUTHEAST WINDS AROUND 10 KNOTS, BECOMING SOUTH  
EARLY IN THE MORNING. SEAS 2 TO 3 FEET. SHOWERS LIKELY WITH A  
CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN A CHANCE OF  
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
EVENING. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.    
SUNDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET. A  
CHANCE OF THUNDERSTORMS. SHOWERS.   
SUNDAY NIGHT
 
SOUTHEAST WINDS AROUND 10 KNOTS, BECOMING SOUTH  
EARLY IN THE MORNING. SEAS 3 TO 4 FEET. A CHANCE OF  
THUNDERSTORMS. SHOWERS LIKELY.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab TX Page Main Text Page