Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 212044
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
344 PM CDT Fri Jul 21 2017

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.

GMZ300-220915-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
344 PM CDT Fri Jul 21 2017

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
Showers and thunderstorms can be expected Saturday and Sunday
beginning in the early morning hours. Light onshore winds will
continue through the end of the weekend. There will be a
tightening in the pressure gradient Saturday into Sunday, which
will result in an increase in wind speed and wave heights Sunday
into Monday.

$$

GMZ330-335-220915-
Matagorda Bay-Galveston Bay-
344 PM CDT Fri Jul 21 2017

.TONIGHT...South winds 5 to 10 knots. Bay waters smooth. A slight
chance of showers and thunderstorms.
.SATURDAY...South winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. Bay waters smooth becoming slightly
choppy in the afternoon. A chance of showers and thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers and thunderstorms.
.SUNDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers and thunderstorms.
.SUNDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.MONDAY...South winds 10 to 15 knots. Bay waters slightly choppy.
.MONDAY NIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.TUESDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Bay waters smooth becoming slightly choppy in
the afternoon. A chance of showers and thunderstorms.
.TUESDAY NIGHT...South winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. Bay waters slightly choppy becoming
smooth after midnight. A slight chance of showers and
thunderstorms.
.WEDNESDAY...South winds 5 to 10 knots. Bay waters smooth. A
slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
A slight chance of showers and thunderstorms.

$$

GMZ350-355-220915-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-Coastal waters from High Island to Freeport out 20 NM-
344 PM CDT Fri Jul 21 2017

.TONIGHT...Southeast winds around 10 knots becoming south after
midnight. Seas 1 foot. A slight chance of showers and
thunderstorms.
.SATURDAY...South winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. Seas 1 to 2 feet. A chance of showers
and thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.SUNDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms.
.TUESDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.WEDNESDAY...South winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas 2 feet. A
slight chance of showers and thunderstorms.

$$

GMZ370-375-220915-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
344 PM CDT Fri Jul 21 2017

.TONIGHT...Southeast winds 5 to 10 knots becoming south after
midnight. Seas 1 foot. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.SATURDAY...South winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. Seas 1 to 2 feet. A chance of showers
and thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.SUNDAY...South winds 10 to 15 knots. Seas 3 feet. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...South winds 10 to 15 knots. Seas 3 to 4 feet.
.MONDAY...South winds 10 to 15 knots. Seas 3 to 4 feet.
.MONDAY NIGHT...South winds 10 to 15 knots. Seas 2 to 3 feet.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. A slight chance of showers and thunderstorms.
.WEDNESDAY...South winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...South winds around 10 knots. Seas 2 feet. A
slight chance of showers and thunderstorms.

$$



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