366
FZUS54 KHGX 171426
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
926 AM CDT Sat May 17 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.

GMZ300-180315-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
926 AM CDT Sat May 17 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, 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 will be needed at times.
The persistent onshore flow will lead to an elevated rip current
risk through the weekend.

$$

GMZ335-180315-
Galveston Bay-
926 AM CDT Sat May 17 2025

.TONIGHT...Southeast winds 10 to 15 knots. Bay waters slightly
choppy.
.SUNDAY...South winds around 15 knots. Bay waters slightly choppy
to 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...South winds 10 to 15 knots, becoming northwest
around 10 knots after midnight. Bay waters slightly choppy,
easing to smooth after midnight.
.WEDNESDAY...North winds around 10 knots. Bay waters smooth to
slightly choppy.
.WEDNESDAY NIGHT...North winds around 10 knots. Bay waters smooth
to slightly choppy.
.THURSDAY...Northeast winds around 10 knots. Bay waters smooth to
slightly choppy.
.THURSDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth.

$$

GMZ330-180315-
Matagorda Bay-
926 AM CDT Sat May 17 2025

.TONIGHT...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.
.WEDNESDAY...Northeast winds around 10 knots. Bay waters smooth
to slightly choppy.
.WEDNESDAY NIGHT...Northeast winds around 10 knots. Bay waters
smooth to slightly choppy.
.THURSDAY...East winds around 10 knots. Bay waters smooth to
slightly choppy.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.

$$

GMZ350-355-180315-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
926 AM CDT Sat May 17 2025

.TONIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.SUNDAY...South winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: Southeast 4 feet at 6 seconds.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: Southeast 5 feet at 6 seconds.
.MONDAY...Southeast winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: Southeast 5 feet at 6 seconds.
.MONDAY NIGHT...South winds 15 to 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
7 seconds.
.TUESDAY...South winds 15 to 20 knots, easing to around 15 knots
in the afternoon. Seas 4 to 6 feet, occasionally to 8 feet. Wave
Detail: Southeast 5 feet at 7 seconds.
.TUESDAY NIGHT...South winds around 10 knots, backing to
northeast after midnight. Seas 3 to 5 feet.
.WEDNESDAY...Northeast winds around 10 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
3 feet.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...Southeast winds around 10 knots. Seas around
3 feet in the evening, then around 2 feet or less.

$$

GMZ370-375-180315-
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-
926 AM CDT Sat May 17 2025

.TONIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.SUNDAY...South 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 6 seconds.
.MONDAY...Southeast winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
6 seconds.
.MONDAY NIGHT...Southeast winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
7 seconds.
.TUESDAY...South winds 15 to 20 knots, easing to around 15 knots
in the afternoon. Seas 5 to 6 feet, occasionally to 8 feet. Wave
Detail: Southeast 5 feet at 7 seconds.
.TUESDAY NIGHT...South winds around 10 knots, backing to east
after midnight. Seas 4 to 5 feet.
.WEDNESDAY...Northeast winds around 10 knots. Seas around 4 feet.
.WEDNESDAY NIGHT...Northeast winds around 10 knots, rising to
10 to 15 knots after midnight. Seas 3 to 4 feet.
.THURSDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...East winds around 10 knots. Seas around 3 feet.

$$