499
FZUS54 KHGX 010034
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
734 PM CDT Sun Aug 31 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.

GMZ300-011315-
734 PM CDT Sun Aug 31 2025

.Synopsis For High Island to the Matagorda Ship Channel Out 60 NM
including Galveston and Matagorda Bays.

A weakening stalled frontal boundary will continue to bring
scattered showers and thunderstorms to the region through Monday.
Some of the stronger storms will be capable of producing locally
heavy rainfall and gusty winds. The winds outside of storms will
generally be light and variable. Rain chances decrease
significantly by the middle of the week.

$$

GMZ335-011315-
Galveston Bay-
734 PM CDT Sun Aug 31 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms early this evening,
then a slight chance of showers and thunderstorms late this
evening and early morning. A chance of showers and thunderstorms
late.
.MONDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms in the evening.
.TUESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots, becoming
southwest after midnight. Bay waters smooth.
.WEDNESDAY...Northwest winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Bay waters smooth.
.THURSDAY...Northwest winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-011315-
Matagorda Bay-
734 PM CDT Sun Aug 31 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth. A chance of thunderstorms. A chance
of showers.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.
A chance of showers and thunderstorms.
.TUESDAY...North winds 5 to 10 knots, becoming east in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming
southwest after midnight. Bay waters smooth.
.WEDNESDAY...Northwest winds 5 to 10 knots, becoming northeast in
the afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Bay waters smooth.
.THURSDAY...West winds 5 to 10 knots, becoming southeast in the
afternoon. Bay waters smooth.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-011315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
734 PM CDT Sun Aug 31 2025

.REST OF TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 3 seconds and south 1 foot at
4 seconds. A chance of showers and thunderstorms.
.MONDAY...East winds around 10 knots. Seas 1 foot or less. Wave
Detail: Northeast 1 foot at 3 seconds. A chance of thunderstorms.
A chance of showers.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 3 seconds. A chance of thunderstorms.
A chance of showers after midnight.
.TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 3 seconds. A chance of showers
and thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming southwest
after midnight. Seas around 2 feet.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northwest 1 foot at 2 seconds.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Seas 1 foot or less.
.THURSDAY...Northwest winds 5 to 10 knots, becoming south in the
afternoon. Seas 1 foot or less.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-011315-
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-
734 PM CDT Sun Aug 31 2025

.REST OF TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 3 seconds and south 1 foot at
4 seconds. A chance of showers. A slight chance of thunderstorms
this evening, then a chance of thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 3 seconds. Showers and
thunderstorms likely, mainly in the morning.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: East 1 foot at
3 seconds. A chance of showers and thunderstorms.
.TUESDAY...Northeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 3 seconds. A chance of showers
and thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY...North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 1 foot at 2 seconds.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming
southwest after midnight. Seas 1 foot or less.
.THURSDAY...Northwest winds 5 to 10 knots, becoming north in the
afternoon. Seas 1 foot or less.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 foot or
less.
.FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet.

Winds and seas higher in and near thunderstorms.

$$