Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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614
FZUS54 KHGX 121520
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1020 AM CDT Sun May 12 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.

GMZ300-130415-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
1020 AM CDT Sun May 12 2024

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

Moderate to occasionally strong east winds and seas of 3 to 5
feet are expected to persist through at least this evening, and
potentially even deeper into the night. Small craft will need to
proceed with caution. Shower and thunderstorm activity is
anticipated to gradually increase into Monday. While showers and
storms will be possible both today and tomorrow, it currently
appears that more activity over the waters is expected on Monday.
Tuesday should give us a short stretch of fairer weather and a
brief amount of offshore flow, but onshore winds return quickly
Tuesday night. This will be followed shortly by the next window
for showers and storms in the mid-to-late week.

$$

GMZ335-130415-
Galveston Bay-
1020 AM CDT Sun May 12 2024

...Small Craft Should Exercise Caution...

.REST OF TODAY...Southeast winds 15 to 20 knots. Bay waters
choppy. A chance of showers and thunderstorms.
.TONIGHT...Southeast winds 15 to 20 knots, easing to around
15 knots in the late evening and overnight. Bay waters choppy,
easing to slightly choppy in the late evening and overnight. A
chance of showers and thunderstorms, mainly in the evening.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A chance of thunderstorms. A chance of showers.
.MONDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
around 10 knots in the late evening and early morning, veering to
southwest late. Bay waters slightly choppy, easing to smooth in
the late evening and overnight. A chance of showers and
thunderstorms until early morning.
.TUESDAY...West winds 5 to 10 knots, veering to north in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...Southeast winds around 5 knots, backing to
northeast after midnight. Bay waters smooth.
.WEDNESDAY...East winds around 10 knots, becoming southeast 10 to
15 knots in the afternoon. Bay waters smooth, rising to slightly
choppy in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms after
midnight.
.THURSDAY...Southeast winds around 15 knots. Bay waters slightly
choppy to choppy. Showers likely with a chance of thunderstorms
in the morning, then showers and thunderstorms likely in the
afternoon.
.THURSDAY NIGHT...South winds 10 to 15 knots, veering to
southwest after midnight. Bay waters slightly choppy, easing to
smooth to slightly choppy after midnight. A chance of showers and
thunderstorms in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-130415-
Matagorda Bay-
1020 AM CDT Sun May 12 2024

...Small Craft Should Exercise Caution...

.REST OF TODAY...Southeast winds 15 to 20 knots. Bay waters
choppy. A chance of showers and thunderstorms.
.TONIGHT...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms early in the
evening. A slight chance of showers and thunderstorms late.
.MONDAY...South winds around 10 knots, becoming southeast 10 to
15 knots late. Bay waters smooth, rising to slightly choppy late.
A chance of showers. A chance of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds around 10 knots, backing to east
in the late evening and overnight. Bay waters smooth. A chance of
showers and thunderstorms early in the evening.
.TUESDAY...East winds 5 to 10 knots. Bay waters smooth.
.TUESDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...East winds around 10 knots, rising to 10 to 15 knots
in the afternoon. Bay waters smooth, rising to slightly choppy in
the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms after
midnight.
.THURSDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots, easing to
around 10 knots after midnight. Bay waters slightly choppy,
easing to smooth after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-130415-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1020 AM CDT Sun May 12 2024

...Small Craft Should Exercise Caution...

.REST OF TODAY...Southeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A chance of
showers and thunderstorms late this morning, then a slight chance
of showers and thunderstorms this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots. Seas around 4 feet.
Wave Detail: Southeast 4 feet at 5 seconds. A slight chance of
showers and thunderstorms.
.MONDAY...South winds around 10 knots. Seas 3 to 5 feet. Wave
Detail: South 5 feet at 4 seconds. A chance of showers. A chance
of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 5 seconds and north 2 feet at
4 seconds. A chance of showers and thunderstorms until early
morning.
.TUESDAY...Northwest winds 5 to 10 knots, veering to east in the
afternoon. Seas around 3 feet. Wave Detail: Southeast 3 feet at
7 seconds and west 1 foot at 4 seconds.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 7 seconds and southeast
1 foot at 4 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southeast winds 15 to 20 knots. Seas 3 to 5 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms in the evening.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-130415-
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-
1020 AM CDT Sun May 12 2024

...Small Craft Should Exercise Caution...

.REST OF TODAY...Southeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: Southeast 4 feet at 6 seconds. A slight
chance of showers and thunderstorms.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: Southeast 4 feet at 5 seconds. A slight chance of showers
and thunderstorms.
.MONDAY...South winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: South 5 feet at 4 seconds. A chance of showers. A chance
of thunderstorms in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 5 seconds and north 2 feet at
4 seconds. A chance of showers and thunderstorms until early
morning.
.TUESDAY...North winds 5 to 10 knots, veering to northeast in the
afternoon. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at
7 seconds and north 2 feet at 5 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 7 seconds and east 1 foot at
4 seconds.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
4 feet. A chance of showers after midnight.
.THURSDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet. A
chance of showers.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet.

Winds and seas higher in and near thunderstorms.

$$