Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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580
FZUS54 KHGX 250255
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
955 PM CDT Tue Sep 24 2024

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.

GMZ300-251600-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
955 PM CDT Tue Sep 24 2024

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

A cold front will push offshore Wednesday night. Light onshore
winds ahead of the front will become moderate to strong north to
northeast winds in the front`s wake. Seas will likely increase to
4 to 6 feet offshore on Thursday. Caution flags in the bays and
Small Craft Advisories offshore may be warranted. Showers and
thunderstorms are possible along and ahead of the front. Winds
should decrease somewhat by Friday and become more westerly over
the weekend.

$$

GMZ335-251600-
Galveston Bay-
955 PM CDT Tue Sep 24 2024

.REST OF TONIGHT...South winds 5 to 10 knots, veering to west
late. Bay waters smooth. A slight chance of showers and
thunderstorms late this evening.
.WEDNESDAY...North winds around 5 knots, veering to northeast in
the afternoon. Bay waters smooth. A chance of showers. A slight
chance of thunderstorms early in the morning, then a chance of
thunderstorms in the late morning and afternoon.
.WEDNESDAY NIGHT...Northeast winds around 10 knots, becoming
north 10 to 15 knots after midnight. Bay waters slightly choppy.
A chance of showers and thunderstorms early in the evening.
.THURSDAY...North winds 10 to 15 knots. Bay waters slightly
choppy.
.THURSDAY NIGHT...North winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...Northwest winds around 10 knots. Bay waters smooth to
slightly choppy.
.FRIDAY NIGHT...West winds 5 to 10 knots. Bay waters smooth.
.SATURDAY...Northwest winds 5 to 10 knots. Bay waters smooth.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, backing to west
after midnight. Bay waters smooth.
.SUNDAY...Northwest winds 5 to 10 knots. Bay waters smooth.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots. Bay waters smooth.


$$

GMZ330-251600-
Matagorda Bay-
955 PM CDT Tue Sep 24 2024

.REST OF TONIGHT...Southeast winds 5 to 10 knots, becoming east
late. Bay waters smooth. A slight chance of showers and
thunderstorms late.
.WEDNESDAY...North winds around 5 knots, veering to southeast
late. Bay waters smooth. A chance of showers early in the
morning, then a slight chance of showers and thunderstorms late
in the morning. A chance of showers and thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...East winds around 10 knots, backing to north
late in the evening, rising to 10 to 15 knots after midnight. Bay
waters slightly choppy. A chance of thunderstorms early in the
evening.
.THURSDAY...North winds 10 to 15 knots. Bay waters slightly
choppy.
.THURSDAY NIGHT...North winds 5 to 10 knots, backing to northwest
late. Bay waters smooth.
.FRIDAY...Northwest winds 5 to 10 knots. Bay waters smooth.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters smooth.
.SATURDAY...Northwest winds 5 to 10 knots. Bay waters smooth.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Bay waters
smooth.
.SUNDAY...West winds 5 to 10 knots. Bay waters smooth.
.SUNDAY NIGHT...South winds 5 to 10 knots, veering to north after
midnight. Bay waters smooth.



$$

GMZ350-355-251600-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
955 PM CDT Tue Sep 24 2024

.REST OF TONIGHT...South winds 5 to 10 knots. Seas around 2 feet
or less. Wave Detail: Southeast 1 foot at 5 seconds.
.WEDNESDAY...Northeast winds 5 to 10 knots, veering to east late.
Seas around 2 feet or less. Wave Detail: Southeast 1 foot at
5 seconds. A slight chance of thunderstorms in the morning. A
chance of showers. A chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds around 10 knots, becoming north
around 15 knots in the late evening and early morning, rising to
15 to 20 knots late. Seas around 2 feet or less, then around
3 feet after midnight. Wave Detail: Northeast 1 foot at 2 seconds
and east 1 foot at 5 seconds, becoming east 2 feet at 4 seconds.
A chance of showers and thunderstorms early in the evening.
.THURSDAY...North winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: Northeast 3 feet at 4 seconds and southeast 1 foot at
12 seconds.
.THURSDAY NIGHT...North winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: Northeast 3 feet at 5 seconds and southeast 2 feet
at 12 seconds.
.FRIDAY...Northwest winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Northeast 3 feet at 5 seconds and southeast 3 feet
at 11 seconds.
.FRIDAY NIGHT...Southwest winds around 10 knots. Seas around
3 feet.
.SATURDAY...West winds 10 to 15 knots. Seas around 2 feet or
less.
.SATURDAY NIGHT...Southwest winds around 10 knots. Seas around
2 feet or less.
.SUNDAY...West winds 5 to 10 knots. Seas around 2 feet or less.
.SUNDAY NIGHT...Southwest winds around 10 knots, veering to west
after midnight. Seas around 2 feet or less.



$$

GMZ370-375-251600-
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-
955 PM CDT Tue Sep 24 2024

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet or less. Wave Detail: Southeast 2 feet at 5 seconds.
.WEDNESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet or
less. Wave Detail: East 1 foot at 5 seconds. Patchy fog early in
the morning. A chance of showers until late afternoon. A slight
chance of thunderstorms in the late morning and afternoon. A
slight chance of showers late.
.WEDNESDAY NIGHT...Northeast winds around 10 knots, becoming
north 15 to 20 knots. Seas around 2 feet or less, then around
3 feet after midnight. Wave Detail: East 1 foot at 5 seconds,
becoming east 3 feet at 5 seconds. A chance of showers and
thunderstorms.
.THURSDAY...North winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 5 feet at
5 seconds and southeast 2 feet at 12 seconds. A chance of showers
early in the morning.
.THURSDAY NIGHT...North winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: Northeast 4 feet at 6 seconds and southeast 3 feet
at 11 seconds.
.FRIDAY...Northwest winds 10 to 15 knots, easing to around
10 knots in the afternoon. Seas 3 to 5 feet. Wave Detail:
Northeast 3 feet at 6 seconds and southeast 3 feet at 11 seconds.
.FRIDAY NIGHT...Southwest winds around 10 knots, rising to 10 to
15 knots after midnight. Seas around 3 feet.
.SATURDAY...West winds 10 to 15 knots, easing to around 10 knots
in the afternoon. Seas around 3 feet.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet or less.
.SUNDAY...Northwest winds 5 to 10 knots. Seas around 2 feet or
less.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet
or less.



$$