344  
FZUS54 KHGX 111839  
CWFHGX  
 
COASTAL WATERS FORECAST FOR TEXAS  
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX  
139 PM CDT FRI JUL 11 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.  
 
GMZ300-120715-  
139 PM CDT FRI JUL 11 2025  
 
.SYNOPSIS FOR HIGH ISLAND TO THE MATAGORDA SHIP CHANNEL OUT 60 NM  
INCLUDING GALVESTON AND MATAGORDA BAYS.  
 
A DAILY RISK OF SHOWERS AND THUNDERSTORMS CONTINUES THROUGH THE  
WEEKEND. SOUTHERLY 10 TO 15 KNOT WINDS WITH OCCASIONAL GUSTS  
AROUND 20 KNOTS EXPECTED THROUGH AT LEAST SUNDAY. SEAS IN THE  
OPEN GULF ARE EXPECTED TO BUILD TO AROUND 4 FEET, POTENTIALLY UP  
TO 5 FEET OFFSHORE. WINDS AND SEAS WILL DECREASE SOMEWHAT AFTER  
MONDAY. LOCALLY HIGHER WINDS AND SEAS ARE POSSIBLE IN THE VICINITY  
OF ANY THUNDERSTORM.  
 
 
 
GMZ335-120715-  
GALVESTON BAY-  
139 PM CDT FRI JUL 11 2025  
   
REST OF TODAY  
SOUTH TO SOUTHEAST WINDS AROUND 15 KNOTS WITH  
GUSTS UP TO 20 KNOTS. BAY WATERS SLIGHTLY CHOPPY. A CHANCE OF  
SHOWERS AND THUNDERSTORMS.    
TONIGHT  
SOUTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS.  
BAY WATERS SLIGHTLY CHOPPY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER MIDNIGHT.    
SATURDAY  
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING,  
THEN SHOWERS AND THUNDERSTORMS LIKELY IN THE AFTERNOON.    
SATURDAY NIGHT  
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY. A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.    
SUNDAY  
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. SHOWERS  
LIKELY WITH A CHANCE OF THUNDERSTORMS.    
SUNDAY NIGHT  
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.    
MONDAY  
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A CHANCE  
OF SHOWERS AND THUNDERSTORMS.    
MONDAY NIGHT  
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.    
TUESDAY  
SOUTH WINDS AROUND 10 KNOTS, INCREASING TO 10 TO  
15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, INCREASING TO  
SLIGHTLY CHOPPY IN THE AFTERNOON.    
TUESDAY NIGHT  
SOUTH WINDS 10 TO 15 KNOTS, BECOMING SOUTHWEST  
AROUND 10 KNOTS AFTER MIDNIGHT. BAY WATERS SLIGHTLY CHOPPY,  
DIMINISHING TO SMOOTH AFTER MIDNIGHT.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 
 
 
GMZ330-120715-  
MATAGORDA BAY-  
139 PM CDT FRI JUL 11 2025  
   
REST OF TODAY  
SOUTH TO SOUTHEAST WINDS AROUND 15 KNOTS WITH  
GUSTS UP TO 20 KNOTS.. BAY WATERS SLIGHTLY CHOPPY. A SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS.    
TONIGHT  
SOUTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS.  
BAY WATERS SLIGHTLY CHOPPY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER MIDNIGHT.    
SATURDAY  
SOUTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS.  
BAY WATERS SLIGHTLY CHOPPY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
SATURDAY NIGHT  
SOUTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO  
20 KNOTS. BAY WATERS SLIGHTLY CHOPPY.    
SUNDAY  
SOUTH WINDS AROUND 10 KNOTS. BAY WATERS SMOOTH TO  
SLIGHTLY CHOPPY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
MORNING.    
SUNDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS  
SLIGHTLY CHOPPY.    
MONDAY  
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH. A CHANCE  
OF SHOWERS IN THE MORNING.    
MONDAY NIGHT  
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY.    
TUESDAY  
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY.    
TUESDAY NIGHT  
SOUTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY  
CHOPPY.  
 
WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.  
 
 
 
GMZ350-355-120715-  
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT  
20 NM-COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM-  
139 PM CDT FRI JUL 11 2025  
   
REST OF TODAY  
SOUTH TO SOUTHEAST WINDS AROUND 15 KNOTS WITH  
GUSTS UP TO 20 KNOTS. SEAS 2 TO 4 FEET. WAVE DETAIL: SOUTH 3 FEET  
AT 5 SECONDS. A CHANCE OF SHOWERS AND THUNDERSTORMS.   
TONIGHT  
SOUTH WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS.  
SEAS 3 TO 4 FEET. WAVE DETAIL: SOUTH 4 FEET AT 5 SECONDS. A  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.    
SATURDAY  
SOUTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO 20 KNOTS.  
SEAS 3 TO 4 FEET. WAVE DETAIL: SOUTH 4 FEET AT 5 SECONDS. A  
CHANCE OF SHOWERS AND THUNDERSTORMS.    
SATURDAY NIGHT  
SOUTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO  
20 KNOTS. SEAS 2 TO 4 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT  
6 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUNDAY  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
SUNDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.  
WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
MONDAY  
SOUTH WINDS AROUND 10 KNOTS. SEAS 2 TO 3 FEET. A CHANCE  
OF SHOWERS AND THUNDERSTORMS IN THE MORNING.    
MONDAY NIGHT  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.    
TUESDAY  
SOUTH WINDS AROUND 10 KNOTS. SEAS 2 TO 3 FEET.    
TUESDAY NIGHT  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 
 
 
GMZ370-375-120715-  
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-  
139 PM CDT FRI JUL 11 2025  
   
REST OF TODAY  
SOUTH TO SOUTHEAST WINDS 10 TO 15 KNOTS WITH  
GUSTS UP TO 20 KNOTS. SEAS 3 TO 4 FEET. WAVE DETAIL: SOUTH 2 FEET  
AT 5 SECONDS. A CHANCE OF SHOWERS AND THUNDERSTORMS.   
TONIGHT  
SOUTHEAST WINDS AROUND 15 KNOTS, BECOMING SOUTH 15 TO  
20 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET. WAVE DETAIL: SOUTH  
4 FEET AT 5 SECONDS. A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER  
MIDNIGHT.    
SATURDAY  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET. WAVE  
DETAIL: SOUTH 4 FEET AT 6 SECONDS. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
SATURDAY NIGHT  
SOUTHEAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO  
20 KNOTS. SEAS 3 TO 4 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT  
6 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.    
SUNDAY  
SOUTH WINDS AROUND 10 KNOTS. SEAS 3 TO 4 FEET. WAVE  
DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS. A CHANCE OF SHOWERS AND  
THUNDERSTORMS.    
SUNDAY NIGHT  
SOUTHEAST WINDS AROUND 10 KNOTS. SEAS AROUND  
3 FEET. WAVE DETAIL: SOUTHEAST 3 FEET AT 6 SECONDS.    
MONDAY  
SOUTH WINDS AROUND 10 KNOTS. SEAS AROUND 3 FEET. A  
CHANCE OF SHOWERS IN THE MORNING.    
MONDAY NIGHT  
SOUTH WINDS AROUND 10 KNOTS. SEAS 2 TO 3 FEET.    
TUESDAY  
SOUTH WINDS AROUND 10 KNOTS. SEAS 2 TO 3 FEET.    
TUESDAY NIGHT  
SOUTH WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.  
 
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.  
 
 
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