883  
FZUS54 KBRO 311435  
CWFBRO  
 
COASTAL WATERS FORECAST FOR THE LOWER TEXAS COAST  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
935 AM CDT MON MAR 31 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.  
 
GMZ100-010315-  
935 AM CDT MON MAR 31 2025  
   
SYNOPSIS  
CONDITIONS WILL BE FAVORABLE TODAY AND TONIGHT, BUT  
THE WINDS ARE EXPECTED TO PICK UP ON TUESDAY AFTERNOON INTO  
TUESDAY EVENING, AND SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED  
HEADING INTO WEDNESDAY THROUGH THE END OF THE WEEK.  
 
 
 
GMZ130-132-135-010315-  
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-  
935 AM CDT MON MAR 31 2025  
   
REST OF TODAY  
EAST WINDS AROUND 5 KNOTS, INCREASING TO 5 TO  
10 KNOTS LATE THIS AFTERNOON. SMOOTH ON THE BAY, INCREASING TO  
LIGHT CHOP LATE THIS AFTERNOON. PATCHY DENSE FOG LATE THIS  
MORNING.    
TONIGHT  
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST EARLY IN  
THE MORNING. LIGHT CHOP ON THE BAY, DIMINISHING TO SMOOTH EARLY  
IN THE MORNING.    
TUESDAY  
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 15 TO  
20 KNOTS. LIGHT CHOP ON THE BAY, INCREASING TO CHOPPY.    
TUESDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS, BECOMING SOUTH  
20 TO 25 KNOTS WITH GUSTS UP TO 30 KNOTS EARLY IN THE MORNING.  
CHOPPY ON THE BAY, INCREASING TO ROUGH EARLY IN THE MORNING.    
WEDNESDAY  
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS UP TO  
30 KNOTS, DIMINISHING TO 15 TO 20 KNOTS WITH GUSTS UP TO 30 KNOTS  
IN THE AFTERNOON. ROUGH ON THE BAY, DIMINISHING TO CHOPPY IN THE  
AFTERNOON.    
WEDNESDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS. CHOPPY ON THE  
BAY.    
THURSDAY  
SOUTH WINDS 15 TO 20 KNOTS, BECOMING SOUTHEAST 10 TO  
15 KNOTS IN THE AFTERNOON. CHOPPY ON THE BAY, DIMINISHING TO A  
MODERATE CHOP IN THE AFTERNOON.    
THURSDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS, DIMINISHING TO  
10 TO 15 KNOTS AFTER MIDNIGHT. CHOPPY ON THE BAY, DIMINISHING TO  
A MODERATE CHOP AFTER MIDNIGHT.    
FRIDAY  
SOUTHEAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO  
20 KNOTS IN THE AFTERNOON. CHOPPY ON THE BAY.    
FRIDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS, DIMINISHING TO  
10 TO 15 KNOTS EARLY IN THE MORNING. CHOPPY ON THE BAY,  
DIMINISHING TO A MODERATE CHOP EARLY IN THE MORNING.  
 
 
 
GMZ150-155-010315-  
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-  
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-  
935 AM CDT MON MAR 31 2025  
   
REST OF TODAY  
SOUTHEAST WINDS AROUND 5 KNOTS, BECOMING EAST  
THIS AFTERNOON. SEAS 3 TO 4 FEET. WAVE DETAIL: SOUTHEAST 3 FEET  
AT 7 SECONDS AND NORTHEAST 1 FOOT AT 8 SECONDS. PATCHY DENSE FOG  
LATE THIS MORNING.    
TONIGHT  
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST AFTER  
MIDNIGHT. SEAS 3 TO 4 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT  
7 SECONDS AND NORTHEAST 1 FOOT AT 8 SECONDS.    
TUESDAY  
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 15 TO  
20 KNOTS. SEAS 3 TO 4 FEET. WAVE DETAIL: EAST 4 FEET AT  
7 SECONDS.    
TUESDAY NIGHT  
SOUTH WINDS 15 TO 20 KNOTS, INCREASING TO 20 TO  
25 KNOTS WITH GUSTS UP TO 30 KNOTS EARLY IN THE MORNING. SEAS  
4 TO 6 FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL: SOUTHEAST  
6 FEET AT 6 SECONDS.    
WEDNESDAY  
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS UP TO  
30 KNOTS, DIMINISHING TO 15 TO 20 KNOTS LATE IN THE AFTERNOON.  
SEAS 6 TO 8 FEET, OCCASIONALLY TO 10 FEET. WAVE DETAIL: SOUTHEAST  
7 FEET AT 7 SECONDS.    
WEDNESDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO  
8 FEET, OCCASIONALLY TO 10 FEET. WAVE DETAIL: SOUTHEAST 7 FEET AT  
8 SECONDS.    
THURSDAY  
SOUTH WINDS 15 TO 20 KNOTS. SEAS 6 TO 8 FEET,  
OCCASIONALLY TO 10 FEET.    
THURSDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 6 TO  
8 FEET, OCCASIONALLY TO 10 FEET.    
FRIDAY  
SOUTHEAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO  
20 KNOTS LATE IN THE AFTERNOON. SEAS 6 TO 8 FEET, OCCASIONALLY TO  
10 FEET.    
FRIDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 6 TO 8 FEET,  
OCCASIONALLY TO 10 FEET.  
 
 
 
GMZ170-175-010315-  
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-  
935 AM CDT MON MAR 31 2025  
   
REST OF TODAY  
SOUTH WINDS AROUND 5 KNOTS, BECOMING EAST THIS  
AFTERNOON. SEAS 3 TO 4 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT  
7 SECONDS AND NORTHEAST 1 FOOT AT 8 SECONDS.    
TONIGHT  
EAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST AFTER  
MIDNIGHT. SEAS 3 TO 4 FEET. WAVE DETAIL: EAST 3 FEET AT  
7 SECONDS.    
TUESDAY  
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 15 TO  
20 KNOTS. SEAS 3 TO 4 FEET. WAVE DETAIL: SOUTHEAST 4 FEET AT  
7 SECONDS AND NORTHEAST 1 FOOT AT 7 SECONDS.    
TUESDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS, BECOMING SOUTH  
20 TO 25 KNOTS WITH GUSTS UP TO 30 KNOTS EARLY IN THE MORNING.  
SEAS 5 TO 7 FEET, OCCASIONALLY TO 9 FEET. WAVE DETAIL: SOUTHEAST  
7 FEET AT 7 SECONDS.    
WEDNESDAY  
SOUTH WINDS 20 TO 25 KNOTS WITH GUSTS UP TO  
30 KNOTS, DIMINISHING TO 15 TO 20 KNOTS IN THE AFTERNOON. SEAS  
6 TO 9 FEET, OCCASIONALLY TO 11 FEET. WAVE DETAIL: SOUTHEAST  
8 FEET AT 7 SECONDS.    
WEDNESDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS, INCREASING TO  
20 TO 25 KNOTS WITH GUSTS UP TO 30 KNOTS IN THE LATE EVENING AND  
OVERNIGHT. SEAS 7 TO 10 FEET, OCCASIONALLY TO 13 FEET. WAVE  
DETAIL: SOUTHEAST 9 FEET AT 9 SECONDS.    
THURSDAY  
SOUTH WINDS 15 TO 20 KNOTS. SEAS 8 TO 10 FEET,  
OCCASIONALLY TO 13 FEET.    
THURSDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 8 TO  
10 FEET, OCCASIONALLY TO 13 FEET.    
FRIDAY  
SOUTHEAST WINDS 10 TO 15 KNOTS, INCREASING TO 15 TO  
20 KNOTS IN THE AFTERNOON. SEAS 7 TO 9 FEET, OCCASIONALLY TO  
11 FEET.    
FRIDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 7 TO  
10 FEET, OCCASIONALLY TO 13 FEET.  
 
 
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