286
FZUS54 KHGX 181915
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
215 PM CDT Fri Apr 18 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.

GMZ300-190815-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
215 PM CDT Fri Apr 18 2025

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

A long fetch of moderate south and southeast winds will continue
across the western Gulf through the weekend. This will drive up
winds and seas along the upper Texas coast resulting in periods of
Small Craft Advisory conditions. Rip current risk is expected to
be high as well through the weekend. Decreasing winds and seas
are expected late Sunday into Monday, before increasing somewhat
by the middle of the week. Shower and thunderstorm chances will
increase Sunday and continue into next week as increased Gulf
moisture interacts with a series of upper level disturbances
passing overhead.

$$

GMZ335-190815-
Galveston Bay-
215 PM CDT Fri Apr 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.THIS AFTERNOON...South winds around 15 knots. Bay waters
slightly choppy to choppy.
.TONIGHT...Southeast winds around 20 knots. Bay waters choppy.
.SATURDAY...Southeast winds around 20 knots. Bay waters choppy.
.SATURDAY NIGHT...Southeast winds around 20 knots. Bay waters
choppy.
.SUNDAY...Southeast winds 15 to 20 knots. Bay waters choppy. A
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds 15 to 20 knots, easing to around
15 knots after midnight. Bay waters choppy, easing to slightly
choppy after midnight. A chance of showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...Southeast winds around 10 knots, rising to 10 to
15 knots in the afternoon. Bay waters smooth, rising to slightly
choppy in the afternoon. A chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-190815-
Matagorda Bay-
215 PM CDT Fri Apr 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.THIS AFTERNOON...South winds 15 to 20 knots. Bay waters choppy.
.TONIGHT...Southeast winds around 20 knots. Bay waters choppy.
.SATURDAY...Southeast winds around 20 knots. Bay waters choppy.
.SATURDAY NIGHT...Southeast winds around 20 knots. Bay waters
choppy.
.SUNDAY...Southeast winds 15 to 20 knots. Bay waters choppy. A
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
around 10 knots after midnight. Bay waters slightly choppy,
easing to smooth after midnight. A chance of showers and
thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning.
.MONDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...Southeast winds around 10 knots, rising to 10 to
15 knots in the afternoon. Bay waters smooth, rising to slightly
choppy in the afternoon. A chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms after
midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-190815-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
215 PM CDT Fri Apr 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.THIS AFTERNOON...South winds around 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: South 5 feet at 7 seconds.
.TONIGHT...Southeast winds around 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: South 6 feet at 7 seconds.
.SATURDAY...Southeast winds around 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Southeast 6 feet at 7
seconds.
.SATURDAY NIGHT...Southeast winds around 20 knots. Seas 6 to
8 feet, occasionally to 10 feet. Wave Detail: Southeast 6 feet at
8 seconds.
.SUNDAY...Southeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of showers and thunderstorms in
the afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
8 seconds. A chance of showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet. A
chance of showers in the morning.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-190815-
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-
215 PM CDT Fri Apr 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.THIS AFTERNOON...South winds around 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: South 6 feet at 7 seconds.
.TONIGHT...Southeast winds around 20 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: South 6 feet at 7 seconds.
.SATURDAY...Southeast winds around 20 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: Southeast 7 feet at
8 seconds.
.SATURDAY NIGHT...Southeast winds around 20 knots. Seas 8 to
9 feet, occasionally to 11 feet. Wave Detail: Southeast 8 feet at
8 seconds.
.SUNDAY...Southeast winds 15 to 20 knots. Seas 6 to 9 feet,
occasionally to 11 feet, subsiding to 6 to 7 feet, occasionally
to 9 feet in the afternoon. Wave Detail: Southeast 8 feet at
8 seconds, becoming southeast 7 feet at 8 seconds. A chance of
showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Southeast 6 feet at
8 seconds. A chance of showers and thunderstorms.
.MONDAY...Southeast winds 5 to 10 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of showers in the morning.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 4 to
5 feet.
.TUESDAY...Southeast winds around 10 knots. Seas 4 to 5 feet. A
chance of showers in the morning. A chance of thunderstorms.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. A chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$