Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 130749
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
249 AM CDT Fri Jun 13 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.

GMZ300-132015-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
249 AM CDT Fri Jun 13 2025

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

Seas offshore are down to 5 feet early this morning, so the small
craft advisory is no longer needed. However, with winds of 15 to
20 knots and seas above 4 feet on the Gulf, small craft will still
need to exercise caution today. After a lull in storms overnight,
we expect amount of thunderstorms today, which will be capable of
producing locally higher winds and seas. The forecast for the
weekend into early next week features light to moderate onshore
flow and a continued daily risk of showers and thunderstorms.

$$

GMZ335-132015-
Galveston Bay-
249 AM CDT Fri Jun 13 2025

...Small Craft Should Exercise Caution...

.TODAY...South winds around 15 knots. Bay waters slightly choppy
to choppy. A chance of showers and thunderstorms early this
morning, then showers and thunderstorms likely late this morning
and afternoon.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers and thunderstorms early in the
evening.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms in the late morning
and afternoon.
.SATURDAY NIGHT...South winds around 10 knots. Bay waters smooth
to slightly choppy. A chance of showers and thunderstorms early
in the evening.
.SUNDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of thunderstorms. A chance of showers in the morning, then
showers likely in the afternoon.
.SUNDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.MONDAY...South winds 5 to 10 knots. Bay waters smooth. Showers
likely with a chance of thunderstorms.
.MONDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers. A chance of thunderstorms in the
afternoon.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-132015-
Matagorda Bay-
249 AM CDT Fri Jun 13 2025

...Small Craft Should Exercise Caution...

.TODAY...South winds around 15 knots. Bay waters slightly choppy
to choppy. A chance of showers and thunderstorms, mainly this
morning.
.TONIGHT...Southeast winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy.
.SUNDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.MONDAY...South winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms.
.MONDAY NIGHT...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-132015-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
249 AM CDT Fri Jun 13 2025

...Small Craft Should Exercise Caution...

.TODAY...South winds around 15 knots. Seas 3 to 5 feet. Wave
Detail: South 4 feet at 6 seconds. A chance of showers and
thunderstorms until late afternoon, then a slight chance of
showers and thunderstorms late.
.TONIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: South 3 feet at 6 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.SUNDAY...South winds around 10 knots. Seas around 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of showers and
thunderstorms.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
Wave Detail: Southeast 3 feet at 7 seconds.
.MONDAY...South winds 5 to 10 knots. Seas around 3 feet. A chance
of thunderstorms. Showers likely, mainly in the morning.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 3 feet.
.TUESDAY...South winds 10 to 15 knots. Seas around 3 feet. A
chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-132015-
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-
249 AM CDT Fri Jun 13 2025

...Small Craft Should Exercise Caution...

.TODAY...South winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: South 4 feet at 6 seconds. A chance of showers and
thunderstorms, mainly this morning.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds. A slight chance of showers
and thunderstorms after midnight.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.SUNDAY...South winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds. A chance of thunderstorms
in the morning. A chance of showers.
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 7 seconds. A chance of
showers and thunderstorms after midnight.
.MONDAY...South winds 5 to 10 knots. Seas around 3 feet. Showers
likely with a chance of thunderstorms in the morning, then a
chance of showers in the afternoon.
.MONDAY NIGHT...South winds around 10 knots, rising to 10 to
15 knots after midnight. Seas around 3 feet. A chance of showers
and thunderstorms after midnight.
.TUESDAY...South winds around 10 knots. Seas around 3 feet. A
chance of showers and thunderstorms in the morning.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 5 feet.

Winds and seas higher in and near thunderstorms.

$$