218  
FZUS54 KHGX 160439  
CWFHGX  
 
COASTAL WATERS FORECAST FOR TEXAS  
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX  
1139 PM CDT MON SEP 15 2025  
 
UPPER TEXAS COASTAL WATERS FROM HIGH ISLAND TO THE MATAGORDA SHIP  
CHANNEL OUT 60 NAUTICAL MILES INCLUDING GALVESTON AND MATAGORDA  
BAYS.  
 
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.  
 
GMZ300-161715-  
1139 PM CDT MON SEP 15 2025  
 
.SYNOPSIS FOR HIGH ISLAND TO THE MATAGORDA SHIP CHANNEL OUT 60 NM  
INCLUDING GALVESTON AND MATAGORDA BAYS.  
 
LIGHT TO OCCASIONALLY MODERATE EAST TO SOUTHEAST WINDS AND 2 TO 4  
FOOT SEAS SHOULD CONTINUE OVER THE NEXT SEVERAL DAYS. ISOLATED  
SHOWERS ARE POSSIBLE THROUGH MIDWEEK WITH GREATER COVERAGE  
EXPECTED DURING THE SECOND HALF OF THE WEEK. WATER LEVELS WILL  
RUN ABOVE NORMAL, REACHING 3.0 TO 3.3 FEET ABOVE MEAN LOWER LOW  
WATER DURING HIGH TIDE CYCLES.  
 

 
 
GMZ335-161715-  
GALVESTON BAY-  
1139 PM CDT MON SEP 15 2025  
   
OVERNIGHT
 
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS  
SMOOTH.   
TUESDAY
 
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST IN THE  
AFTERNOON. BAY WATERS SMOOTH.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS  
SMOOTH.    
WEDNESDAY
 
NORTHEAST WINDS AROUND 5 KNOTS, BECOMING SOUTHEAST  
IN THE AFTERNOON. BAY WATERS SMOOTH.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS  
SMOOTH.    
THURSDAY
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS  
SMOOTH.    
FRIDAY
 
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.   
SATURDAY
 
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A CHANCE  
OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.    
SATURDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS  
SMOOTH.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
GMZ330-161715-  
MATAGORDA BAY-  
1139 PM CDT MON SEP 15 2025  
   
OVERNIGHT
 
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS  
SMOOTH.   
TUESDAY
 
EAST WINDS AROUND 10 KNOTS, INCREASING TO 10 TO  
15 KNOTS WITH GUSTS UP TO 20 KNOTS IN THE AFTERNOON. BAY WATERS  
SMOOTH, INCREASING TO SLIGHTLY CHOPPY IN THE AFTERNOON.    
TUESDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO  
20 KNOTS, DIMINISHING TO AROUND 10 KNOTS AFTER MIDNIGHT. BAY  
WATERS SLIGHTLY CHOPPY, DIMINISHING TO SMOOTH AFTER MIDNIGHT.    
WEDNESDAY
 
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO  
AROUND 10 KNOTS AFTER MIDNIGHT. BAY WATERS SLIGHTLY CHOPPY,  
DIMINISHING TO SMOOTH AFTER MIDNIGHT.    
THURSDAY
 
EAST WINDS AROUND 10 KNOTS, INCREASING TO 10 TO  
15 KNOTS WITH GUSTS UP TO 20 KNOTS IN THE AFTERNOON. BAY WATERS  
SMOOTH, INCREASING TO SLIGHTLY CHOPPY IN THE AFTERNOON.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO  
20 KNOTS, DIMINISHING TO AROUND 10 KNOTS AFTER MIDNIGHT. BAY  
WATERS SLIGHTLY CHOPPY, DIMINISHING TO SMOOTH AFTER MIDNIGHT.    
FRIDAY
 
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A CHANCE  
OF SHOWERS.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.  
A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SATURDAY
 
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A CHANCE  
OF SHOWERS AND THUNDERSTORMS.    
SATURDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS  
SMOOTH. A CHANCE OF SHOWERS AFTER MIDNIGHT.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
GMZ350-355-161715-  
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT  
20 NM-COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM-  
1139 PM CDT MON SEP 15 2025  
   
OVERNIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO  
AROUND 10 KNOTS LATE. SEAS 2 TO 3 FEET. WAVE DETAIL: SOUTHEAST  
3 FEET AT 5 SECONDS.    
TUESDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS. A SLIGHT CHANCE OF SHOWERS  
IN THE AFTERNOON.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
3 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
WEDNESDAY
 
EAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
3 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
THURSDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE  
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS.    
THURSDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
3 FEET.    
FRIDAY
 
EAST WINDS AROUND 10 KNOTS. SEAS AROUND 2 FEET. A  
CHANCE OF SHOWERS IN THE AFTERNOON.    
FRIDAY NIGHT
 
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS AROUND  
2 FEET. A CHANCE OF SHOWERS.    
SATURDAY
 
EAST WINDS AROUND 10 KNOTS. SEAS AROUND 2 FEET. A  
CHANCE OF SHOWERS AND THUNDERSTORMS.    
SATURDAY NIGHT
 
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS 2 TO  
4 FEET. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
GMZ370-375-161715-  
WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX FROM 20 TO  
60 NM-WATERS FROM HIGH ISLAND TO FREEPORT TX FROM 20 TO 60 NM-  
1139 PM CDT MON SEP 15 2025  
   
OVERNIGHT
 
EAST WINDS 10 TO 15 KNOTS WITH HIGHER GUSTS AT TIMES.  
SEAS 3 TO 4 FEET. WAVE DETAIL: EAST 3 FEET AT 5 SECONDS.    
TUESDAY
 
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS.  
SEAS 3 TO 4 FEET. WAVE DETAIL: EAST 3 FEET AT 6 SECONDS. A SLIGHT  
CHANCE OF SHOWERS IN THE AFTERNOON.    
TUESDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.  
WAVE DETAIL: EAST 3 FEET AT 6 SECONDS.    
WEDNESDAY
 
EAST WINDS AROUND 10 KNOTS. SEAS 2 TO 3 FEET. WAVE  
DETAIL: EAST 3 FEET AT 6 SECONDS.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
3 FEET. WAVE DETAIL: EAST 3 FEET AT 6 SECONDS.    
THURSDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE  
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS.    
THURSDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. A  
CHANCE OF SHOWERS AFTER MIDNIGHT.    
FRIDAY
 
EAST WINDS AROUND 10 KNOTS. SEAS AROUND 2 FEET. A  
CHANCE OF SHOWERS.    
FRIDAY NIGHT
 
EAST WINDS AROUND 10 KNOTS. SEAS AROUND 2 FEET. A  
CHANCE OF SHOWERS.    
SATURDAY
 
EAST WINDS AROUND 10 KNOTS. SEAS 2 TO 3 FEET. A  
CHANCE OF SHOWERS AND THUNDERSTORMS.    
SATURDAY NIGHT
 
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS 2 TO  
4 FEET. A CHANCE OF SHOWERS.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 

 
 
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