853
FZUS54 KHGX 211847
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1247 PM CST Fri Nov 21 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.

GMZ300-220730-
1247 PM CST Fri Nov 21 2025

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

Light to moderate onshore flow should continue through tonight
with Gulf seas of 2 to 4 feet. Isolated to widely scattered
showers are expected as a front pushes offshore Saturday morning.
Winds on Saturday will become easterly to northeasterly behind
the front. Onshore flow returns on Sunday. The next weather
system will move into the area sometime Monday, bringing another
chance of showers and storms. Onshore winds increase ahead of the
system, potentially warranting caution flags by Sunday night. Rain
chances linger into Tuesday as the next front will be slow to
move through the area. This front should be off the coast around
Wednesday morning after being reinforced by a stronger cold front.

$$

GMZ335-220730-
Galveston Bay-
1247 PM CST Fri Nov 21 2025

.THIS AFTERNOON...South winds around 10 knots. Bay waters smooth
to slightly choppy. A slight chance of showers and thunderstorms.
.TONIGHT...South winds 5 to 10 knots, becoming southwest after
midnight. Bay waters smooth. A slight chance of showers in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight. Patchy fog.
.SATURDAY...North winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning. Patchy fog in the morning.
.SATURDAY NIGHT...North winds 5 to 10 knots. Bay waters smooth.
.SUNDAY...Northeast winds around 10 knots, becoming east in the
afternoon. Bay waters smooth to slightly choppy.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of thunderstorms. Showers likely.
.TUESDAY...Southwest winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning.
.TUESDAY NIGHT...Northwest winds around 10 knots, becoming north
15 to 20 knots after midnight. Bay waters smooth, increasing to
choppy after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-220730-
Matagorda Bay-
1247 PM CST Fri Nov 21 2025

.THIS AFTERNOON...South winds around 10 knots. Bay waters smooth
to slightly choppy. A slight chance of showers and thunderstorms
early.
.TONIGHT...South winds 5 to 10 knots. Bay waters smooth. Showers
likely with a chance of thunderstorms after midnight. Patchy fog
after midnight.
.SATURDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning. Patchy fog in the morning.
.SATURDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters
slightly choppy.
.SUNDAY...East winds 10 to 15 knots. Bay waters slightly choppy.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters
choppy.
.MONDAY...South winds 15 to 20 knots. Bay waters choppy. A chance
of showers.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. Showers likely with a chance of thunderstorms.
.TUESDAY...West winds 5 to 10 knots, becoming south in the
afternoon. Bay waters smooth. A chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming north
15 to 20 knots after midnight. Bay waters smooth, increasing to
choppy after midnight. A chance of showers and thunderstorms
after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-220730-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1247 PM CST Fri Nov 21 2025

.THIS AFTERNOON...South winds around 10 knots. Seas 2 to 3 feet.
Wave Detail: South 2 feet at 6 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: South 3 feet at 6 seconds. A slight chance of showers and
thunderstorms after midnight.
.SATURDAY...North winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers in the
morning.
.SATURDAY NIGHT...Northeast winds around 10 knots, increasing to
10 to 15 knots after midnight. Seas 2 to 3 feet. Wave Detail:
Northeast 2 feet at 3 seconds and southeast 2 feet at 6 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 5 seconds.
.SUNDAY NIGHT...Southeast winds around 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 4 feet. Wave Detail:
Southeast 3 feet at 5 seconds.
.MONDAY...South winds 15 to 20 knots. Seas 3 to 4 feet. A chance
of showers in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers in the evening, then showers likely with a
chance of thunderstorms after midnight.
.TUESDAY...Southwest winds 10 to 15 knots, diminishing to around
10 knots in the afternoon. Seas 2 to 4 feet. A chance of showers
in the morning.
.TUESDAY NIGHT...North winds around 10 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 3 feet. A chance of showers
and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-220730-
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-
1247 PM CST Fri Nov 21 2025

.THIS AFTERNOON...South winds 5 to 10 knots. Seas around 3 feet.
Wave Detail: South 3 feet at 6 seconds.
.TONIGHT...South winds 5 to 10 knots. Seas around 3 feet. Wave
Detail: South 3 feet at 6 seconds.
.SATURDAY...Southwest winds around 5 knots, becoming northeast in
the afternoon. Seas 2 to 3 feet. Wave Detail: Southeast 3 feet at
6 seconds. A chance of showers.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 6 seconds and northeast
1 foot at 2 seconds.
.SUNDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 3 seconds and southeast 2 feet at
6 seconds.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots with gusts up to
25 knots. Seas 2 to 4 feet. Wave Detail: Southeast 3 feet at
5 seconds.
.MONDAY...South winds around 15 knots. Seas 3 to 5 feet. A chance
of showers in the afternoon.
.MONDAY NIGHT...South winds around 15 knots. Seas 4 to 5 feet. A
chance of showers.
.TUESDAY...Southwest winds 5 to 10 knots. Seas 3 to 4 feet. A
chance of showers in the morning.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming north
15 to 20 knots after midnight. Seas around 3 feet. A chance of
showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$