315
FZUS54 KHGX 191728
CWFHGX
COASTAL WATERS FORECAST FOR TEXAS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1228 PM CDT SAT SEP 19 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.
GMZ300-200615-
1228 PM CDT SAT SEP 19 2026
.SYNOPSIS FOR HIGH ISLAND TO THE MATAGORDA SHIP CHANNEL OUT 60 NM
INCLUDING GALVESTON AND MATAGORDA BAYS.
LIGHT ESE WINDS PEAKING JUST OVER 10 KTS INTERMITTENTLY WILL
CONTINUE THROUGH TUESDAY. SEAS OF 2 TO 4 FT PERSIST OVER THIS PERIOD
AS WELL. ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED EACH DAY
STARTING SUNDAY.
GMZ335-200615-
GALVESTON BAY-
1228 PM CDT SAT SEP 19 2026
THIS AFTERNOON
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
TONIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
SUNDAY
NORTHEAST WINDS AROUND 5 KNOTS, BECOMING SOUTHEAST IN
THE AFTERNOON. BAY WATERS SMOOTH.
SUNDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
MONDAY
EAST WINDS AROUND 5 KNOTS, BECOMING SOUTHEAST IN THE
AFTERNOON. BAY WATERS SMOOTH.
MONDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING SOUTHWEST
AFTER MIDNIGHT. BAY WATERS SMOOTH.
TUESDAY
NORTH WINDS 5 TO 10 KNOTS, BECOMING EAST IN THE
AFTERNOON. BAY WATERS SMOOTH.
TUESDAY NIGHT
SOUTHEAST WINDS AROUND 5 KNOTS. BAY WATERS
SMOOTH.
WEDNESDAY
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST IN THE
AFTERNOON. BAY WATERS SMOOTH.
WEDNESDAY NIGHT
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
GMZ330-200615-
MATAGORDA BAY-
1228 PM CDT SAT SEP 19 2026
THIS AFTERNOON
EAST WINDS AROUND 10 KNOTS, BECOMING SOUTHEAST
10 TO 15 KNOTS LATE. BAY WATERS SMOOTH, INCREASING TO SLIGHTLY
CHOPPY LATE.
TONIGHT
SOUTHEAST WINDS 10 TO 15 KNOTS, DIMINISHING TO AROUND
10 KNOTS AFTER MIDNIGHT. BAY WATERS SLIGHTLY CHOPPY, DIMINISHING
TO SMOOTH AFTER MIDNIGHT.
SUNDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
SUNDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
MONDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
MONDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
TUESDAY
EAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH.
TUESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST
AFTER MIDNIGHT. BAY WATERS SMOOTH.
WEDNESDAY
NORTHEAST WINDS AROUND 10 KNOTS, BECOMING EAST 10 TO
15 KNOTS IN THE AFTERNOON. BAY WATERS SMOOTH, INCREASING TO
SLIGHTLY CHOPPY IN THE AFTERNOON.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS, DIMINISHING TO
AROUND 10 KNOTS AFTER MIDNIGHT. BAY WATERS SLIGHTLY CHOPPY,
DIMINISHING TO SMOOTH AFTER MIDNIGHT.
GMZ350-355-200615-
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT
20 NM-COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM-
1228 PM CDT SAT SEP 19 2026
THIS AFTERNOON
EAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
WAVE DETAIL: EAST 3 FEET AT 7 SECONDS.
TONIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: EAST 3 FEET AT 7 SECONDS.
SUNDAY
EAST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS.
SUNDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND
2 FEET. WAVE DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS.
MONDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS.
MONDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND
2 FEET. WAVE DETAIL: SOUTHEAST 1 FOOT AT 5 SECONDS.
TUESDAY
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS.
TUESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND
2 FEET.
WEDNESDAY
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
GMZ370-375-200615-
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-
1228 PM CDT SAT SEP 19 2026
THIS AFTERNOON
EAST WINDS 5 TO 10 KNOTS. SEAS AROUND 3 FEET.
WAVE DETAIL: EAST 3 FEET AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS EARLY.
TONIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: EAST 3 FEET AT 7 SECONDS.
SUNDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO 3 FEET. WAVE
DETAIL: EAST 3 FEET AT 7 SECONDS.
SUNDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND
2 FEET. WAVE DETAIL: SOUTHEAST 2 FEET AT 6 SECONDS.
MONDAY
EAST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET. WAVE
DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS.
MONDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND
2 FEET. WAVE DETAIL: SOUTHEAST 2 FEET AT 5 SECONDS.
TUESDAY
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
TUESDAY NIGHT
EAST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET.
WEDNESDAY
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
WINDS AND SEAS HIGHER IN AND NEAR THUNDERSTORMS.
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