Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 120331
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1031 PM CDT Sun May 11 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.

GMZ300-121645-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
1031 PM CDT Sun May 11 2025

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

As low pressure to our east moves further away from the region,
northwest winds will swing around to an onshore direction late
Monday. Winds and seas will then increase going into midweek as
the pressure gradient tightens. Caution flags and Advisories may
be needed at times. Stronger winds could also lead to strong rip
currents along the beaches and higher water levels in and near the
bays. Winds decrease near the end of the work week into the
upcoming weekend.

$$

GMZ335-121645-
Galveston Bay-
1031 PM CDT Sun May 11 2025

.REST OF TONIGHT...North winds 5 to 10 knots. Bay waters smooth.
.MONDAY...Northwest winds 5 to 10 knots. Bay waters smooth.
.MONDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY NIGHT...South winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY...Southwest winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY NIGHT...South winds around 15 knots. Bay waters
slightly choppy to choppy.
.THURSDAY...South winds around 15 knots. Bay waters slightly
choppy to choppy.
.THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.FRIDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.

$$

GMZ330-121645-
Matagorda Bay-
1031 PM CDT Sun May 11 2025

.REST OF TONIGHT...North winds around 5 knots. Bay waters smooth.
.MONDAY...Northwest winds around 5 knots, backing to southwest.
Bay waters smooth.
.MONDAY NIGHT...South winds around 10 knots, rising to 10 to
15 knots after midnight. Bay waters slightly choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY NIGHT...South winds around 20 knots. Bay waters choppy.
.WEDNESDAY...South winds 15 to 20 knots. Bay waters choppy.
.WEDNESDAY NIGHT...South winds around 15 knots. Bay waters
slightly choppy to choppy.
.THURSDAY...South winds around 15 knots. Bay waters slightly
choppy to choppy.
.THURSDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.

$$

GMZ350-355-121645-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1031 PM CDT Sun May 11 2025

.REST OF TONIGHT...Northwest winds 5 to 10 knots. Seas around
2 feet or less. Wave Detail: Northwest 1 foot at 3 seconds and
east 1 foot at 5 seconds.
.MONDAY...Northwest winds 5 to 10 knots, backing to southwest.
Seas around 2 feet or less. Wave Detail: West 1 foot at 3 seconds
and east 1 foot at 5 seconds.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas around 2 feet or
less, then around 3 feet after midnight. Wave Detail: Southwest
2 feet at 3 seconds and east 1 foot at 5 seconds, becoming south
3 feet at 5 seconds.
.TUESDAY...South winds around 15 knots. Seas 3 to 4 feet. Wave
Detail: South 4 feet at 5 seconds.
.TUESDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: South 6 feet at 6 seconds.
.WEDNESDAY...South winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: South 5 feet at 7 seconds.
.WEDNESDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 5 feet.
.THURSDAY...South winds 15 to 20 knots, easing to around 15 knots
in the afternoon. Seas 4 to 5 feet.
.THURSDAY NIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet.
.FRIDAY...South winds 10 to 15 knots. Seas 3 to 5 feet.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.

$$

GMZ370-375-121645-
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-
1031 PM CDT Sun May 11 2025

.REST OF TONIGHT...West winds 5 to 10 knots. Seas around 2 feet
or less. Wave Detail: Northwest 1 foot at 3 seconds and east
1 foot at 6 seconds.
.MONDAY...Northwest winds 10 to 15 knots, easing to around
10 knots early in the afternoon, backing to west. Seas around 2
feet or less. Wave Detail: West 2 feet at 3 seconds and east 1
foot at 5 seconds.
.MONDAY NIGHT...South winds around 10 knots, rising to 10 to
15 knots after midnight. Seas around 2 feet or less, then around
3 feet after midnight. Wave Detail: Southwest 2 feet at 4 seconds
and east 1 foot at 5 seconds, becoming south 3 feet at 5 seconds.
.TUESDAY...South winds around 15 knots. Seas 3 to 5 feet. Wave
Detail: South 4 feet at 5 seconds.
.TUESDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 5 feet,
building to 6 to 8 feet, occasionally to 10 feet after midnight.
Wave Detail: South 5 feet at 6 seconds, becoming south 6 feet at
6 seconds.
.WEDNESDAY...South winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet, subsiding to 5 to 6 feet, occasionally
to 8 feet in the afternoon. Wave Detail: South 6 feet at
7 seconds, becoming south 5 feet at 7 seconds.
.WEDNESDAY NIGHT...South winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet.
.THURSDAY...South winds 15 to 20 knots, easing to around 15 knots
in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet.
.THURSDAY NIGHT...Southeast winds 15 to 20 knots. Seas around
5 feet.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
.FRIDAY NIGHT...Southeast winds around 15 knots. Seas 4 to
6 feet, occasionally to 8 feet.

$$