Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 122105
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
405 PM 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.

GMZ300-131015-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
405 PM 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.

$$

GMZ335-131015-
Galveston Bay-
405 PM CDT Sun May 12 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM CDT THIS AFTERNOON...

.TONIGHT...Southeast around 20 knots, becoming south around 15
knots after midnight. Bay waters slightly choppy. A chance of
showers and thunderstorms, mainly this evening.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A slight chance of showers and thunderstorms in the morning, then
showers likely with a chance of thunderstorms in the afternoon.
.MONDAY NIGHT...South winds 10 to 15 knots, becoming southwest
around 10 knots after midnight. Bay waters smooth. A chance of
showers in the evening. A chance of thunderstorms until early
morning.
.TUESDAY...Northwest winds 5 to 10 knots, veering to north in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...Southeast winds around 5 knots, backing to east
late. 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 10 to 15 knots. Bay waters slightly
choppy. Showers and thunderstorms likely.
.THURSDAY 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.
.FRIDAY...Southwest winds 5 to 10 knots, backing to southeast in
the afternoon. Bay waters smooth.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-131015-
Matagorda Bay-
405 PM CDT Sun May 12 2024

...Small Craft Should Exercise Caution...

.TONIGHT...Southeast winds around 15 knots. Bay waters slightly
choppy. A slight chance of showers and thunderstorms early this
evening.
.MONDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy. A slight chance of showers and thunderstorms
early in the morning, then a chance of showers and thunderstorms
in the late morning and afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots, backing to
northeast after midnight. Bay waters smooth. A chance of
thunderstorms early in the evening.
.TUESDAY...North winds around 5 knots, veering to east in the
afternoon. Bay waters smooth.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.
.WEDNESDAY...East winds 10 to 15 knots. Bay waters slightly
choppy.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.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.
.FRIDAY...East winds 5 to 10 knots. Bay waters smooth.
.FRIDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.

Winds and waves higher in and near thunderstorms.

$$

GMZ355-131015-
Coastal waters from High Island to Freeport TX out 20 NM-
405 PM CDT Sun May 12 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM CDT THIS AFTERNOON...

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

Winds and seas higher in and near thunderstorms.

$$

GMZ350-131015-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-
405 PM CDT Sun May 12 2024

...Small Craft Should Exercise Caution...

.TONIGHT...Southeast winds around 15 knots. Seas around 4 feet.
Wave Detail: Southeast 4 feet at 6 seconds. A slight chance of
showers and thunderstorms early this evening. A slight chance of
showers and thunderstorms late.
.MONDAY...South winds around 10 knots. Seas 3 to 5 feet. Wave
Detail: South 5 feet at 4 seconds. A chance of showers. A slight
chance of thunderstorms early in the morning, then a chance of
thunderstorms in the late morning and afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots, easing to around
10 knots after midnight, backing to north late. Seas 3 to 4 feet.
Wave Detail: Southeast 4 feet at 5 seconds. A chance of showers
and thunderstorms early in the evening.
.TUESDAY...North winds 5 to 10 knots, veering to east in the
afternoon. Seas 3 to 4 feet. Wave Detail: Southeast 4 feet at
6 seconds and northeast 1 foot at 4 seconds.
.TUESDAY NIGHT...Southeast 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 around 10 knots, rising to 10 to 15 knots
in the afternoon. Seas 3 to 4 feet. Wave Detail: East 3 feet at
4 seconds and southeast 3 feet at 8 seconds.
.WEDNESDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southeast winds around 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet.
.FRIDAY...East winds 5 to 10 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-131015-
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-
405 PM CDT Sun May 12 2024

...Small Craft Should Exercise Caution...

.TONIGHT...Southeast winds around 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 4 feet at 5
seconds. A slight chance of showers and thunderstorms late.
.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 slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots, becoming west around
10 knots late. 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 early in the evening.
.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. Wave
Detail: East 4 feet at 4 seconds and southeast 3 feet at
8 seconds.
.WEDNESDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms after midnight.
.THURSDAY...Southeast winds around 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots, becoming south
around 15 knots after midnight. Seas around 4 feet.
.FRIDAY...Southeast winds 10 to 15 knots, becoming east around
10 knots in the afternoon. Seas around 4 feet.
.FRIDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet.

Winds and seas higher in and near thunderstorms.

$$