347
FZUS54 KHGX 171821
CWFHGX
COASTAL WATERS FORECAST FOR TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
121 PM CDT SAT OCT 17 2026
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.
GMZ300-180730-
121 PM CDT SAT OCT 17 2026
.SYNOPSIS FOR HIGH ISLAND TO THE MATAGORDA SHIP CHANNEL OUT 60 NM
INCLUDING GALVESTON AND MATAGORDA BAYS.
SUSTAINED WINDS BETWEEN 15 AND 25 KNOTS, ALONG WITH SOME HIGHER
GUSTS WILL CONTINUE TO TAPER DOWN AS WE HEAD INTO THE EVENING
HOURS. WINDS AND SEAS WILL CONTINUE TO SUBSIDE TONIGHT, ALTHOUGH
REMAINING FAIRLY ELEVATED IN THE GULF THROUGH SUNDAY. MODERATE
EAST WINDS ARE EXPECTED FOR THE FIRST HALF OF THE UPCOMING WEEK
AND MAY REACH 20 KNOTS AT TIMES. DUE TO THE ELEVATED WINDS, SEAS
ARE EXPECTED TO BE 3 TO 6 FEET. CAUTION FLAGS AND SMALL CRAFT
ADVISORIES MY BE NEEDED.
GMZ335-180730-
GALVESTON BAY-
121 PM CDT SAT OCT 17 2026
THIS AFTERNOON
NORTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO
20 KNOTS. BAY WATERS SLIGHTLY CHOPPY.
TONIGHT
NORTHEAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO
20 KNOTS. BAY WATERS SLIGHTLY CHOPPY.
SUNDAY
NORTHEAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO
20 KNOTS, DIMINISHING TO AROUND 10 KNOTS IN THE AFTERNOON. BAY
WATERS SLIGHTLY CHOPPY, DIMINISHING TO SMOOTH IN THE AFTERNOON.
SUNDAY NIGHT
EAST WINDS AROUND 10 KNOTS, BECOMING NORTHEAST
10 TO 15 KNOTS AFTER MIDNIGHT. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY AFTER MIDNIGHT.
MONDAY
NORTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
MONDAY NIGHT
EAST WINDS AROUND 10 KNOTS, BECOMING NORTHEAST
10 TO 15 KNOTS AFTER MIDNIGHT. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY AFTER MIDNIGHT.
TUESDAY
EAST WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY CHOPPY.
TUESDAY NIGHT
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
WEDNESDAY
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
WEDNESDAY NIGHT
EAST WINDS AROUND 5 KNOTS. BAY WATERS SMOOTH.
GMZ355-180730-
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM-
121 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT SUNDAY
THIS AFTERNOON
NORTHEAST WINDS 20 TO 25 KNOTS, BECOMING NORTH
AROUND 20 KNOTS LATE. SEAS 5 TO 7 FEET, OCCASIONALLY TO 9 FEET.
WAVE DETAIL: NORTHEAST 6 FEET AT 6 SECONDS.
TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
25 KNOTS. SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL:
NORTHEAST 5 FEET AT 6 SECONDS.
SUNDAY
NORTHEAST WINDS 15 TO 20 KNOTS, DIMINISHING TO AROUND
15 KNOTS IN THE AFTERNOON. SEAS 3 TO 5 FEET. WAVE DETAIL: EAST
4 FEET AT 6 SECONDS.
SUNDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: EAST 2 FEET AT 6 SECONDS.
MONDAY
EAST WINDS 15 TO 20 KNOTS, BECOMING NORTHEAST AROUND
15 KNOTS IN THE AFTERNOON. SEAS 2 TO 4 FEET. WAVE DETAIL: EAST
3 FEET AT 7 SECONDS.
MONDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET. WAVE
DETAIL: EAST 4 FEET AT 7 SECONDS.
TUESDAY
EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET.
TUESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET,
SUBSIDING TO 2 TO 3 FEET AFTER MIDNIGHT.
WEDNESDAY
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
WEDNESDAY NIGHT
EAST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
GMZ375-180730-
WATERS FROM HIGH ISLAND TO FREEPORT TX FROM 20 TO 60 NM-
121 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT SUNDAY
THIS AFTERNOON
NORTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS UP TO
30 KNOTS. SEAS 8 TO 11 FEET, OCCASIONALLY TO 14 FEET. WAVE
DETAIL: NORTHEAST 9 FEET AT 7 SECONDS.
TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
25 KNOTS. SEAS 6 TO 9 FEET, OCCASIONALLY TO 11 FEET, SUBSIDING TO
5 TO 6 FEET, OCCASIONALLY TO 8 FEET AFTER MIDNIGHT. WAVE DETAIL:
NORTHEAST 7 FEET AT 7 SECONDS, BECOMING EAST 5 FEET AT 7 SECONDS.
SUNDAY
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET. WAVE
DETAIL: EAST 4 FEET AT 7 SECONDS.
SUNDAY NIGHT
NORTHEAST WINDS AROUND 15 KNOTS, BECOMING EAST
15 TO 20 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET. WAVE DETAIL:
EAST 4 FEET AT 6 SECONDS.
MONDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 5 FEET. WAVE
DETAIL: EAST 5 FEET AT 7 SECONDS.
MONDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 5 FEET. WAVE
DETAIL: EAST 5 FEET AT 8 SECONDS.
TUESDAY
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. A CHANCE OF SHOWERS.
TUESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET.
WEDNESDAY
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
GMZ330-180730-
MATAGORDA BAY-
121 PM CDT SAT OCT 17 2026
THIS AFTERNOON
NORTH WINDS 10 TO 15 KNOTS WITH GUSTS UP TO
20 KNOTS. BAY WATERS SLIGHTLY CHOPPY.
TONIGHT
NORTH WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
SUNDAY
NORTHEAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO
20 KNOTS, DIMINISHING TO AROUND 10 KNOTS IN THE AFTERNOON. BAY
WATERS SLIGHTLY CHOPPY, DIMINISHING TO SMOOTH IN THE AFTERNOON.
SUNDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
MONDAY
NORTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
MONDAY NIGHT
NORTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS
SLIGHTLY CHOPPY.
TUESDAY
NORTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY. A CHANCE OF SHOWERS IN THE AFTERNOON.
TUESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
WEDNESDAY
EAST WINDS 10 TO 15 KNOTS. BAY WATERS SLIGHTLY
CHOPPY.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS, DIMINISHING TO
AROUND 10 KNOTS AFTER MIDNIGHT. BAY WATERS SLIGHTLY CHOPPY,
DIMINISHING TO SMOOTH AFTER MIDNIGHT.
GMZ350-180730-
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT
20 NM-
121 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT SUNDAY
THIS AFTERNOON
NORTH WINDS AROUND 20 KNOTS WITH GUSTS UP TO 30
KNOTS. SEAS 5 TO 8 FEET, OCCASIONALLY TO 10 FEET. WAVE DETAIL:
EAST 6 FEET AT 8 SECONDS.
TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
25 KNOTS. SEAS 5 TO 7 FEET, OCCASIONALLY TO 9 FEET. WAVE DETAIL:
EAST 5 FEET AT 8 SECONDS.
SUNDAY
NORTHEAST WINDS 15 TO 20 KNOTS, DIMINISHING TO AROUND
15 KNOTS IN THE AFTERNOON. SEAS 3 TO 5 FEET. WAVE DETAIL: EAST
4 FEET AT 7 SECONDS.
SUNDAY NIGHT
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.
WAVE DETAIL: EAST 3 FEET AT 7 SECONDS.
MONDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET. WAVE
DETAIL: EAST 4 FEET AT 7 SECONDS.
MONDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET. WAVE
DETAIL: EAST 5 FEET AT 7 SECONDS.
TUESDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. A CHANCE OF SHOWERS IN THE AFTERNOON.
TUESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET, SUBSIDING TO 3 TO 4 FEET AFTER MIDNIGHT.
WEDNESDAY
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS, DIMINISHING TO
AROUND 10 KNOTS AFTER MIDNIGHT. SEAS 2 TO 3 FEET.
GMZ370-180730-
WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX FROM 20 TO
60 NM-
121 PM CDT SAT OCT 17 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT SUNDAY
THIS AFTERNOON
NORTH WINDS 20 TO 25 KNOTS WITH GUSTS UP TO
30 KNOTS. SEAS 9 TO 12 FEET, OCCASIONALLY TO 15 FEET. WAVE
DETAIL: NORTHEAST 9 FEET AT 8 SECONDS.
TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO
25 KNOTS. SEAS 6 TO 9 FEET, OCCASIONALLY TO 11 FEET, SUBSIDING TO
5 TO 7 FEET, OCCASIONALLY TO 9 FEET AFTER MIDNIGHT. WAVE DETAIL:
NORTHEAST 7 FEET AT 8 SECONDS, BECOMING NORTHEAST 6 FEET AT
7 SECONDS.
SUNDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 5 FEET. WAVE
DETAIL: NORTHEAST 5 FEET AT 7 SECONDS.
SUNDAY NIGHT
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET.
WAVE DETAIL: NORTHEAST 4 FEET AT 7 SECONDS.
MONDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHEAST 5 FEET AT
6 SECONDS.
MONDAY NIGHT
EAST WINDS 10 TO 15 KNOTS WITH GUSTS UP TO
20 KNOTS. SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL:
EAST 5 FEET AT 8 SECONDS.
TUESDAY
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 6 FEET,
OCCASIONALLY TO 8 FEET. A CHANCE OF SHOWERS.
TUESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET.
WEDNESDAY
EAST WINDS AROUND 15 KNOTS. SEAS 3 TO 5 FEET.
WEDNESDAY NIGHT
EAST WINDS AROUND 15 KNOTS, DIMINISHING TO
AROUND 10 KNOTS AFTER MIDNIGHT. SEAS 2 TO 4 FEET.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page