Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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963
FZUS54 KHGX 061208
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
608 AM CST Sat Dec 6 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.

GMZ300-070115-
608 AM CST Sat Dec 6 2025

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

Isolated to scattered coastal and offshore showers this morning
should diminish by the afternoon. A cold front will approach the
region tonight. Areas of fog are expected to develop ahead of the
front. Fog could become dense at times. A Dense Fog advisory might
be warranted for later tonight and Sunday morning. Northerly
winds will increase in the cold front`s wake, likely warranting
Small Craft Advisories Sunday evening into Monday morning.
Occasional gusts to gale force cannot be ruled out offshore in the
open Gulf. Winds and seas should gradually improve by Monday
afternoon, with onshore flow returning by Tuesday. May need to
monitor the potential for sea fog by the middle of next week.

$$

GMZ335-070115-
Galveston Bay-
608 AM CST Sat Dec 6 2025

.TODAY...Northeast winds around 5 knots, becoming southeast this
afternoon. Bay waters smooth. A slight chance of showers early
this morning.
.TONIGHT...South winds 5 to 10 knots, becoming southwest after
midnight. Bay waters smooth. Patchy fog after midnight.
.SUNDAY...West winds around 10 knots, becoming northwest 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
smooth, increasing to slightly choppy in the afternoon. Areas of
fog in the morning.
.SUNDAY NIGHT...North winds 15 to 20 knots with gusts up to
30 knots. Bay waters choppy.
.MONDAY...North winds 15 to 20 knots with gusts up to 25 knots,
diminishing to around 15 knots in the afternoon. Bay waters
choppy, diminishing to slightly choppy in the afternoon.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...Southwest winds around 10 knots. Bay waters smooth
to slightly choppy.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Bay waters
smooth to slightly choppy.

$$

GMZ330-070115-
Matagorda Bay-
608 AM CST Sat Dec 6 2025

.TODAY...North winds 5 to 10 knots, becoming southeast this
afternoon. Bay waters smooth. A chance of showers early this
morning.
.TONIGHT...South winds 5 to 10 knots, becoming southwest after
midnight. Bay waters smooth. Patchy fog after midnight.
.SUNDAY...West winds around 10 knots, becoming northwest 10 to
15 knots with gusts up to 20 knots in the afternoon. Bay waters
smooth, increasing to slightly choppy in the afternoon. Patchy
fog in the morning.
.SUNDAY NIGHT...North winds 20 to 25 knots with gusts up to
30 knots. Bay waters rough.
.MONDAY...North winds 15 to 20 knots with gusts up to 25 knots,
diminishing to around 15 knots in the afternoon. Bay waters
choppy, diminishing to slightly choppy in the afternoon.
.MONDAY NIGHT...Northeast winds around 10 knots. Bay waters
smooth to slightly choppy.
.TUESDAY...Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Bay waters smooth.
.TUESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...Southwest winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Bay waters
slightly choppy.

$$

GMZ350-355-070115-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
608 AM CST Sat Dec 6 2025

.TODAY...Northeast winds 5 to 10 knots, becoming east this
afternoon. Seas around 2 feet. Wave Detail: Northeast 2 feet at
5 seconds. A chance of showers early this morning, then a slight
chance of showers late this morning.
.TONIGHT...Southeast winds 5 to 10 knots, becoming southwest
after midnight. Seas around 2 feet. Wave Detail: East 2 feet at
5 seconds. Patchy fog after midnight.
.SUNDAY...West winds around 10 knots, becoming northwest 15 to
20 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southwest 1 foot at 3 seconds and southeast 1 foot at 5 seconds.
Patchy fog in the morning.
.SUNDAY NIGHT...North winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
North 4 feet at 4 seconds.
.MONDAY...North winds 20 to 25 knots, diminishing to around
20 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 4 feet at 5 seconds.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Northeast 3 feet at 5 seconds.
.TUESDAY...East winds around 10 knots, becoming southeast in the
afternoon. Seas around 2 feet.
.TUESDAY NIGHT...South winds around 10 knots, increasing to 10 to
15 knots after midnight. Seas around 2 feet.
.WEDNESDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots. Seas 2 to
4 feet.

$$

GMZ370-375-070115-
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-
608 AM CST Sat Dec 6 2025

.TODAY...North winds 10 to 15 knots, becoming northeast around
10 knots late this morning and early afternoon, then becoming
east late. Seas around 2 feet. Wave Detail: Northeast 2 feet at
5 seconds. Showers likely early this morning, then a slight
chance of showers late this morning. A slight chance of showers
late.
.TONIGHT...Southeast winds 5 to 10 knots, becoming southwest
after midnight. Seas around 2 feet. Wave Detail: East 2 feet at
5 seconds and south 1 foot at 3 seconds. A slight chance of
showers.
.SUNDAY...West winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: West 2 feet at 3 seconds and southeast 1 foot at
5 seconds. A chance of showers in the morning.
.SUNDAY NIGHT...North winds 20 to 25 knots with gusts up to
30 knots. Seas 3 to 5 feet, building to 6 to 9 feet, occasionally
to 11 feet after midnight. Wave Detail: Northwest 5 feet at
5 seconds and east 1 foot at 5 seconds, becoming north 7 feet at
6 seconds.
.MONDAY...North winds 20 to 25 knots with gusts up to 30 knots,
diminishing to around 20 knots in the afternoon. Seas 6 to
9 feet, occasionally to 11 feet, subsiding to 4 to 6 feet,
occasionally to 8 feet in the afternoon. Wave Detail: North
7 feet at 6 seconds, becoming northeast 6 feet at 6 seconds.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
Wave Detail: Northeast 4 feet at 6 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...South winds around 10 knots, increasing to 10 to
15 knots after midnight. Seas around 2 feet.
.WEDNESDAY...Southwest winds 10 to 15 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.

$$