Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 012339
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
639 PM CDT Mon Sep 1 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.

GMZ300-021215-
639 PM CDT Mon Sep 1 2025

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

The remains of a stalled front will continue to bring scattered
showers and thunderstorms over the coastal locations and Gulf
waters into the evening and overnight hours. Some of the stronger
storms will be capable of producing locally heavy rainfall and
gusty winds. Winds outside of storms will generally be light and
variable, while becoming erratic and gusty in and around any
storms. Rain chances decrease significantly by the middle of the
week, while winds and seas are expected to remain rather light and
low.

$$

GMZ335-021215-
Galveston Bay-
639 PM CDT Mon Sep 1 2025

.TONIGHT...East winds 5 to 10 knots, becoming northeast late. Bay
waters smooth. A chance of showers and thunderstorms.
.TUESDAY...East winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms.
.TUESDAY NIGHT...East winds around 5 knots. Bay waters smooth.
.WEDNESDAY...North winds 5 to 10 knots, becoming southwest in the
afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming southwest
after midnight. Bay waters smooth.
.THURSDAY...West winds around 5 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.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms in the afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-021215-
Matagorda Bay-
639 PM CDT Mon Sep 1 2025

.TONIGHT...East winds 5 to 10 knots, becoming northeast late. Bay
waters smooth. A chance of showers and thunderstorms.
.TUESDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms, mainly in the morning.
.TUESDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Bay waters smooth.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Bay waters smooth.
.THURSDAY...West winds around 5 knots, becoming south in the
afternoon. Bay waters smooth.
.THURSDAY NIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy.
.FRIDAY...South winds 5 to 10 knots. Bay waters smooth.
.FRIDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-021215-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
639 PM CDT Mon Sep 1 2025

.TONIGHT...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 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 1 foot at 4 seconds. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 1 foot at 4 seconds.
.WEDNESDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Seas around 2 feet. Wave Detail: East 1 foot at
4 seconds.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas around 2 feet. Wave Detail: East 1 foot at
4 seconds.
.THURSDAY...West winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
5 seconds.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet.
.FRIDAY...South winds 5 to 10 knots. Seas 1 foot or less.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-021215-
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-
639 PM CDT Mon Sep 1 2025

.TONIGHT...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 3 seconds. A chance of showers and
thunderstorms until early morning, then showers and thunderstorms
likely late.
.TUESDAY...Northeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 4 seconds. Showers and
thunderstorms likely, mainly in the morning.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 4 seconds.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 4 seconds.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas around 2 feet. Wave Detail: East 2 feet at
5 seconds.
.THURSDAY...West winds around 5 knots, becoming north in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
6 seconds.
.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 1 foot or
less.
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$