Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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533
FZUS54 KHGX 162043
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
343 PM CDT Fri May 16 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.

GMZ300-170915-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
343 PM CDT Fri May 16 2025

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

Moderate southerly winds and elevated seas continue today
warranting caution flags through late tonight for the offshore
waters. Light to occasionally moderate onshore flow will persist
through at least early next week. Caution flags may be warranted
on Monday.

$$

GMZ335-170915-
Galveston Bay-
343 PM CDT Fri May 16 2025

.THIS AFTERNOON...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.SUNDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters
choppy.
.MONDAY...South winds 15 to 20 knots. Bay waters choppy.
.MONDAY NIGHT...South winds 15 to 20 knots. Bay waters choppy.
.TUESDAY...South winds around 15 knots. Bay waters slightly
choppy to choppy.
.TUESDAY NIGHT...South winds 10 to 15 knots, veering to northwest
after midnight. Bay waters slightly choppy, easing to smooth to
slightly choppy after midnight.

$$

GMZ330-170915-
Matagorda Bay-
343 PM CDT Fri May 16 2025

.THIS AFTERNOON...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy.
.SUNDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters
choppy.
.MONDAY...South winds 15 to 20 knots. Bay waters choppy.
.MONDAY NIGHT...South winds 15 to 20 knots. Bay waters choppy.
.TUESDAY...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, backing to
northeast after midnight. Bay waters smooth.

$$

GMZ350-355-170915-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
343 PM CDT Fri May 16 2025

.THIS AFTERNOON...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.SUNDAY...South winds around 15 knots. Seas 4 to 5 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: Southeast 5 feet at 7 seconds.
.MONDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet.
.MONDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet.
.TUESDAY...South winds 15 to 20 knots, easing to around 15 knots
in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet.
.TUESDAY NIGHT...South winds around 10 knots, backing to north
after midnight. Seas 3 to 5 feet.

$$

GMZ370-375-170915-
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-
343 PM CDT Fri May 16 2025

...Small Craft Should Exercise Caution...

.THIS AFTERNOON...Southeast winds around 10 knots. Seas 5 to
6 feet, occasionally to 8 feet. Wave Detail: Southeast 4 feet at
7 seconds.
.TONIGHT...South winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
7 seconds.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: Southeast 4 feet at 7 seconds.
.SATURDAY NIGHT...Southeast winds around 15 knots. Seas 4 to
5 feet. Wave Detail: Southeast 4 feet at 7 seconds.
.SUNDAY...Southeast winds around 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
7 seconds.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: Southeast 5 feet at 7 seconds.
.MONDAY...Southeast winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet.
.MONDAY NIGHT...Southeast winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet.
.TUESDAY...South winds 15 to 20 knots, easing to around 15 knots
in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet.
.TUESDAY NIGHT...South winds around 10 knots. Seas 4 to 5 feet.

$$