775
FZUS54 KHGX 180640
CWFHGX
COASTAL WATERS FORECAST FOR TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
140 AM CDT SUN OCT 18 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.
GMZ300-181915-
140 AM CDT SUN OCT 18 2026
.SYNOPSIS FOR HIGH ISLAND TO THE MATAGORDA SHIP CHANNEL OUT 60 NM
INCLUDING GALVESTON AND MATAGORDA BAYS.
WINDS AND SEAS WILL CONTINUE TO SUBSIDE OVERNIGHT, ALTHOUGH
REMAINING FAIRLY ELEVATED IN THE GULF WATERS AND GALVESTON BAY
THROUGH SUNDAY AFTERNOON. 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 MAY BE NEEDED.
GMZ335-181915-
GALVESTON BAY-
140 AM CDT SUN OCT 18 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT UNTIL 10 AM CDT
THIS MORNING...
REST OF TONIGHT
NORTHEAST WINDS AROUND 15 KNOTS. BAY WATERS
SLIGHTLY CHOPPY.
SUNDAY
NORTHEAST WINDS AROUND 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
SOUTHEAST WINDS AROUND 5 KNOTS, BECOMING
NORTHEAST AFTER MIDNIGHT. BAY WATERS SMOOTH.
THURSDAY
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST IN THE
AFTERNOON. BAY WATERS SMOOTH.
THURSDAY NIGHT
SOUTHEAST WINDS AROUND 5 KNOTS, BECOMING EAST
AFTER MIDNIGHT. BAY WATERS SMOOTH.
GMZ330-181915-
MATAGORDA BAY-
140 AM CDT SUN OCT 18 2026
REST OF 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.
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.
THURSDAY
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST IN THE
AFTERNOON. BAY WATERS SMOOTH.
THURSDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS
SMOOTH.
GMZ350-355-181915-
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT
20 NM-COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM-
140 AM CDT SUN OCT 18 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH THIS
EVENING...
REST OF TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS UP
TO 25 KNOTS. SEAS 3 TO 5 FEET. WAVE DETAIL: EAST 5 FEET AT
7 SECONDS.
SUNDAY
NORTHEAST WINDS 15 TO 20 KNOTS, DIMINISHING TO AROUND
15 KNOTS IN THE AFTERNOON. SEAS 3 TO 5 FEET. WAVE DETAIL: EAST
5 FEET AT 7 SECONDS.
SUNDAY NIGHT
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET.
WAVE DETAIL: EAST 3 FEET AT 6 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 4 FEET AT 7 SECONDS.
TUESDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET. WAVE
DETAIL: EAST 4 FEET AT 8 SECONDS.
TUESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS, DIMINISHING TO AROUND
15 KNOTS AFTER MIDNIGHT. SEAS 3 TO 5 FEET.
WEDNESDAY
NORTHEAST 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.
THURSDAY
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
THURSDAY NIGHT
EAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
GMZ370-375-181915-
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-
140 AM CDT SUN OCT 18 2026
...SMALL CRAFT SHOULD EXERCISE CAUTION IN EFFECT THROUGH THIS
EVENING...
REST OF TONIGHT
NORTHEAST WINDS 15 TO 20 KNOTS WITH GUSTS UP
TO 25 KNOTS. SEAS 5 TO 7 FEET, OCCASIONALLY TO 9 FEET. WAVE
DETAIL: 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 WITH GUSTS UP TO
20 KNOTS. SEAS 3 TO 4 FEET. WAVE DETAIL: NORTHEAST 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 AROUND 15 KNOTS WITH GUSTS UP TO
20 KNOTS. SEAS 4 TO 5 FEET. WAVE DETAIL: EAST 5 FEET AT
8 SECONDS.
TUESDAY
EAST WINDS 15 TO 20 KNOTS WITH GUSTS UP TO 25 KNOTS.
SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL: EAST
6 FEET AT 8 SECONDS. A CHANCE OF SHOWERS IN THE MORNING, THEN A
CHANCE OF RAIN IN THE AFTERNOON.
TUESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS, DIMINISHING TO AROUND
15 KNOTS AFTER MIDNIGHT. SEAS 4 TO 6 FEET, OCCASIONALLY TO
8 FEET.
WEDNESDAY
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS, DIMINISHING TO
AROUND 10 KNOTS AFTER MIDNIGHT. SEAS 2 TO 3 FEET.
THURSDAY
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 4 FEET.
THURSDAY NIGHT
EAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
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