Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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597
FZUS54 KHGX 212010
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
310 PM CDT Thu Sep 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.

GMZ300-220845-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
310 PM CDT Thu Sep 21 2017

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
Light to moderate southeast winds and seas near 3 feet will
continue well into next week. Periods of showers and thunderstorms
are expected across the waters each day, with the greatest
potential during the early morning hours.

$$

GMZ330-335-220845-
Matagorda Bay-Galveston Bay-
310 PM CDT Thu Sep 21 2017

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

$$

GMZ350-355-220845-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-Coastal waters from High Island to Freeport out 20 NM-
310 PM CDT Thu Sep 21 2017

.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A slight chance of showers and thunderstorms after midnight.
.SATURDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Seas 2 to 3 feet. A slight chance of showers
and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 2 feet. A chance of
showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 feet. A
slight chance of showers and thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 feet. A chance
of showers and thunderstorms.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 feet. A
chance of showers and thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
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.

$$

GMZ370-375-220845-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
310 PM CDT Thu Sep 21 2017

.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A slight chance of showers and thunderstorms after midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. A slight chance of showers and thunderstorms after
midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 2 feet. A chance of
showers and thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 feet. A
slight chance of showers and thunderstorms.
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 feet. A chance
of showers and thunderstorms.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of showers and thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 feet. A
slight chance of showers and thunderstorms.

$$



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