845
FZUS54 KHGX 292357
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
657 PM CDT Fri Aug 29 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.

GMZ300-301215-
657 PM CDT Fri Aug 29 2025

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

A frontal boundary is expected to stall over our region this
weekend, enhancing shower and thunderstorm activity through the
weekend. Winds over the weekend are expected to generally be light
and variable. However, locally stronger winds in the vicinity of
thunderstorms are likely. Winds are expected to turn back to
being broadly onshore later next week.

$$

GMZ335-301215-
Galveston Bay-
657 PM CDT Fri Aug 29 2025

.REST OF TONIGHT...South winds 5 to 10 knots, becoming west late.
Bay waters smooth. A slight chance of showers and thunderstorms
early this evening. A slight chance of showers and thunderstorms,
then a chance of showers and thunderstorms late.
.SATURDAY...North winds around 5 knots, becoming northeast in the
afternoon. Bay waters smooth. A chance of thunderstorms. A chance
of showers in the morning, then showers likely in the afternoon.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots, becoming east
after midnight. Bay waters smooth. A chance of showers and
thunderstorms.
.SUNDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Bay waters smooth.
Showers likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.MONDAY NIGHT...East winds around 5 knots, becoming north after
midnight. Bay waters smooth. A chance of showers and
thunderstorms.
.TUESDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.TUESDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Bay waters smooth.
.WEDNESDAY...North winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-301215-
Matagorda Bay-
657 PM CDT Fri Aug 29 2025

.REST OF TONIGHT...South winds 5 to 10 knots. Bay waters smooth.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth. A slight chance of showers and
thunderstorms in the morning, then 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.
.SUNDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Bay waters smooth.
Thunderstorms likely. Showers likely.
.MONDAY NIGHT...East winds 5 to 10 knots, becoming northeast
after midnight. Bay waters smooth. A chance of showers. A chance
of thunderstorms after midnight.
.TUESDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms in the morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, becoming west
after midnight. Bay waters smooth.
.WEDNESDAY...North winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-301215-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
657 PM CDT Fri Aug 29 2025

.REST OF TONIGHT...South winds around 10 knots. Seas around
2 feet. Wave Detail: South 1 foot at 5 seconds. A slight chance
of showers and thunderstorms early this evening. A chance of
showers and thunderstorms late.
.SATURDAY...Southwest winds 5 to 10 knots, becoming south in the
afternoon. Seas around 2 feet. Wave Detail: South 1 foot at
5 seconds. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 1 foot at 5 seconds. A chance of
showers and thunderstorms after midnight.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: Southeast 1 foot at
4 seconds. A chance of thunderstorms. Showers likely, mainly in
the morning.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: Southeast 1 foot
at 4 seconds. A chance of showers and thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 4 seconds and east 1 foot at
4 seconds. Showers and thunderstorms likely in the morning, then
showers likely with a chance of thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less, then around 2 feet after
midnight. A chance of thunderstorms. A chance of showers.
.TUESDAY...North winds around 10 knots, becoming northeast in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less. A chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...South winds 5 to 10 knots, becoming west after
midnight. Seas 1 foot or less, then around 2 feet after midnight.
.WEDNESDAY...North winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or
less.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-301215-
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-
657 PM CDT Fri Aug 29 2025

.REST OF TONIGHT...South winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 2 feet at 5 seconds. A slight chance of
showers and thunderstorms late.
.SATURDAY...Southwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southwest 1 foot at 4 seconds and southeast 1 foot
at 5 seconds. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 1 foot at 5 seconds. A chance of
showers and thunderstorms after midnight.
.SUNDAY...Southeast winds around 5 knots, becoming east in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less. Wave Detail: Southeast 1 foot at 4 seconds. A chance of
thunderstorms. Showers likely, mainly in the morning.
.SUNDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: South 1 foot at 4 seconds and east 1 foot at
4 seconds. A chance of showers and thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds and east 1 foot at 4 seconds. A
chance of thunderstorms. Showers likely.
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet. A
chance of thunderstorms. A chance of showers in the evening, then
showers likely after midnight.
.TUESDAY...North winds 5 to 10 knots. Seas around 2 feet. Showers
likely with a chance of thunderstorms in the morning.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming west after
midnight. Seas around 2 feet. A chance of showers after midnight.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY NIGHT...North winds 5 to 10 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$