383  
FZUS54 KBRO 210546  
CWFBRO  
 
COASTAL WATERS FORECAST FOR THE LOWER TEXAS COAST  
NATIONAL WEATHER SERVICE BROWNSVILLE TX  
1246 AM CDT SAT MAR 21 2026  
 
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.  
 
GMZ100-211830-  
1246 AM CDT SAT MAR 21 2026  
   
SYNOPSIS  
LIGHT TO MODERATE WINDS AND LOW TO MODERATE SEAS WILL  
PREVAIL ALONG THE LOWER TEXAS COAST WITH HIGH PRESSURE IN CONTROL.  
ALTHOUGH SMALL CRAFT ADVISORY IS NOT LIKELY TO BE NEEDED, SMALL  
CRAFT SHOULD EXERCISE CAUTION MAY OCCASIONALLY BE NEEDED, MAINLY  
DUE TO WINDS.  
 
 
 
GMZ130-132-135-211830-  
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-  
1246 AM CDT SAT MAR 21 2026  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION  
 
   
TODAY  
SOUTH WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST EARLY  
THIS AFTERNOON, THEN INCREASING TO 15 TO 20 KNOTS LATE THIS  
AFTERNOON. A MODERATE CHOP ON THE BAY, INCREASING TO CHOPPY BAY  
WATERS LATE THIS AFTERNOON.    
TONIGHT  
SOUTH WINDS 10 TO 15 KNOTS. A MODERATE CHOP ON THE  
BAY.    
SUNDAY  
SOUTH WINDS 10 TO 15 KNOTS, BECOMING SOUTHEAST 15 TO  
20 KNOTS LATE IN THE AFTERNOON. A MODERATE CHOP ON THE BAY,  
INCREASING TO CHOPPY BAY WATERS LATE IN THE AFTERNOON.    
SUNDAY NIGHT  
SOUTHEAST WINDS 15 TO 20 KNOTS, BECOMING SOUTH  
5 TO 10 KNOTS. CHOPPY BAY WATERS, DIMINISHING TO A LIGHT CHOP ON  
THE BAY.   
MONDAY  
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO  
15 KNOTS IN THE AFTERNOON. A MODERATE CHOP ON THE BAY.    
MONDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO  
5 TO 10 KNOTS AFTER MIDNIGHT. A LIGHT CHOP ON THE BAY.    
TUESDAY  
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO  
15 KNOTS IN THE AFTERNOON. A MODERATE CHOP ON THE BAY.    
TUESDAY 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 A LIGHT CHOP ON THE BAY EARLY IN THE MORNING.    
WEDNESDAY  
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST 10 TO  
15 KNOTS IN THE AFTERNOON. A MODERATE CHOP ON THE BAY.    
WEDNESDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. A MODERATE  
CHOP ON THE BAY.  
 
 
 
GMZ150-155-211830-  
GULF WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-  
GULF WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-  
1246 AM CDT SAT MAR 21 2026  
   
TODAY  
SOUTH WINDS 10 TO 15 KNOTS, BECOMING AROUND 15 KNOTS  
LATE THIS AFTERNOON. SEAS 2 TO 4 FEET. WAVE DETAIL: SOUTHEAST  
3 FEET AT 6 SECONDS.    
TONIGHT  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
SUNDAY  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
SUNDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.  
WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
MONDAY  
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING AROUND 10 KNOTS  
LATE IN THE AFTERNOON. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST  
2 FEET AT 6 SECONDS.    
MONDAY NIGHT  
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.  
WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
TUESDAY  
SOUTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO  
15 KNOTS LATE IN THE AFTERNOON. SEAS 2 TO 3 FEET.    
TUESDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
3 FEET.    
WEDNESDAY  
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.    
WEDNESDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO  
4 FEET.  
 
 
 
GMZ170-175-211830-  
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-  
1246 AM CDT SAT MAR 21 2026  
   
TODAY  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
TONIGHT  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
SUNDAY  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
SUNDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.  
WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
MONDAY  
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
MONDAY NIGHT  
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS 3 TO  
4 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
TUESDAY  
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 3 TO 4 FEET.    
TUESDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO  
4 FEET.    
WEDNESDAY  
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS 3 TO 4 FEET.    
WEDNESDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO  
4 FEET.  
 
 
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