Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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018
FZUS54 KHGX 221946
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
246 PM CDT Thu May 22 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.

GMZ300-230830-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
246 PM CDT Thu May 22 2025

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

Light to occasionally moderate onshore winds and seas of 2 to 4
feet are expected through Saturday. Winds and seas increase
somewhat Sunday into Monday. Caution flags may be warranted
during this time. There will also be an increasing risk of strong
rip currents along the Gulf facing beaches and higher water levels
at times of high tide early next week.

$$

GMZ335-230830-
Galveston Bay-
246 PM CDT Thu May 22 2025

.TONIGHT...Southeast winds 10 to 15 knots, becoming south around
10 knots late this evening and overnight. Bay waters slightly
choppy, easing to smooth late this evening and overnight.
.FRIDAY...Southeast winds around 10 knots, rising to 10 to
15 knots late. Bay waters smooth, rising to slightly choppy late.
Patchy fog in the morning.
.FRIDAY NIGHT...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 around 15 knots. Bay waters
slightly choppy to choppy.
.SUNDAY...South winds around 15 knots. Bay waters slightly choppy
to choppy.
.SUNDAY NIGHT...South winds around 15 knots. Bay waters slightly
choppy to choppy.
.MONDAY...South winds around 15 knots. Bay waters slightly choppy
to choppy. A chance of thunderstorms. A chance of showers in the
afternoon.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms.
.TUESDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers after midnight.



$$

GMZ330-230830-
Matagorda Bay-
246 PM CDT Thu May 22 2025

.TONIGHT...Southeast winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...Southeast winds around 10 knots, rising to 10 to
15 knots in the afternoon. Bay waters slightly choppy. Patchy fog
in the morning. A slight chance of showers with isolated
thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast 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...Southeast winds 10 to 15 knots. Bay waters slightly
choppy.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters
choppy.
.MONDAY...South winds around 15 knots. Bay waters slightly choppy
to choppy. A chance of showers and thunderstorms in the
afternoon.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms.
.TUESDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.TUESDAY NIGHT...East winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers after midnight.



$$

GMZ350-355-230830-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
246 PM CDT Thu May 22 2025

.TONIGHT...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: Southeast 2 feet at 6 seconds.
.FRIDAY...Southeast winds around 10 knots, rising to 10 to
15 knots late. Seas around 2 feet or less, then around 3 feet in
the afternoon. Wave Detail: East 2 feet at 5 seconds, becoming
southeast 2 feet at 6 seconds.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.SATURDAY...South winds around 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 5 seconds.
.SUNDAY...Southeast winds around 15 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.
.MONDAY...South winds 15 to 20 knots. Seas 4 to 5 feet. A chance
of thunderstorms. A chance of showers in the afternoon.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
A chance of showers and thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 5 feet. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. A chance of showers after midnight.



$$

GMZ370-375-230830-
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-
246 PM CDT Thu May 22 2025

.TONIGHT...Southeast winds around 10 knots. Seas around 3 feet.
Wave Detail: East 2 feet at 5 seconds.
.FRIDAY...Southeast winds around 10 knots. Seas around 2 feet or
less, then around 3 feet in the afternoon. Wave Detail: Southeast
2 feet at 6 seconds.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. Wave Detail: Southeast 3 feet at 6 seconds.
.SATURDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 4 feet at 6 seconds.
.SUNDAY...Southeast winds around 15 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 6 feet,
occasionally to 8 feet.
.MONDAY...Southeast winds 15 to 20 knots. Seas 5 to 6 feet,
occasionally to 8 feet. A chance of thunderstorms.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. A chance of showers and thunderstorms.
.TUESDAY...Southeast winds around 10 knots. Seas 3 to 5 feet. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. A chance of showers after midnight.



$$