Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 221507
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
1007 AM CDT Tue Aug 22 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.

GMZ300-230345-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
1007 AM CDT Tue Aug 22 2017

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
Light winds and low seas are expected into midweek. We will be
keeping an eye on the remnants of Harvey to see if they can
reorganize as the system moves into the Gulf of Mexico. If Harvey
reforms, increasing winds and higher swells can be expected later
this week and possibly on into the weekend. There continues to be
considerable uncertainty at this time, and mariners are urged to
keep up with the latest  forecast.

$$

GMZ335-230345-
Galveston Bay-
1007 AM CDT Tue Aug 22 2017

.REST OF TODAY...East winds around 5 knots becoming southeast in
the afternoon. Bay waters smooth. Isolated showers and
thunderstorms early in the morning, then a chance of showers and
thunderstorms in the late morning and afternoon.
.TONIGHT...South winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...Northeast winds around 5 knots becoming east in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots becoming east
after midnight. Bay waters smooth. A chance of showers and
thunderstorms in the evening, then a slight chance of showers and
thunderstorms after midnight.
.THURSDAY...Northeast winds 5 to 10 knots becoming east 10 to
15 knots in the afternoon. Bay waters smooth becoming slightly
choppy in the afternoon. A chance of showers and thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots. Bay waters
choppy. A chance of showers and thunderstorms.
.SATURDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms.

$$

GMZ330-230345-
Matagorda Bay-
1007 AM CDT Tue Aug 22 2017

.REST OF TODAY...Southeast winds 5 to 10 knots. Bay waters
smooth. Isolated showers and thunderstorms early in the morning,
then a chance of showers and thunderstorms late in the morning. A
slight chance of showers and thunderstorms in the afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
.WEDNESDAY...Northeast winds 5 to 10 knots becoming east in the
afternoon. Bay waters smooth. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. A
slight chance of showers and thunderstorms.
.THURSDAY...Northeast winds 5 to 10 knots becoming east 10 to
15 knots in the afternoon. Bay waters smooth becoming slightly
choppy in the afternoon. A chance of showers and thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots increasing to 15 to
20 knots after midnight. Bay waters slightly choppy becoming
choppy after midnight. A chance of showers and thunderstorms.
.FRIDAY...East winds 15 to 25 knots. Bay waters choppy. A chance
of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 15 to 25 knots becoming south
20 to 25 knots after midnight. Bay waters choppy becoming rough
after midnight. A chance of showers and thunderstorms.
.SATURDAY...Southeast winds 15 to 20 knots. Bay waters choppy. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms.

$$

GMZ355-230345-
Coastal waters from High Island to Freeport out 20 NM-
1007 AM CDT Tue Aug 22 2017

.REST OF TODAY...East winds 5 to 10 knots. Seas 1 to 2 feet.
Isolated showers and thunderstorms early in the morning, then a
chance of showers and thunderstorms late in the morning. A slight
chance of showers and thunderstorms in the afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A
slight chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots becoming east in the
afternoon. Seas 1 to 2 feet. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots becoming east
after midnight. Seas 2 feet. A slight chance of showers and
thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet. A
chance of showers and thunderstorms.
.FRIDAY...Southeast winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 8 feet. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 7 feet. A chance of showers and
thunderstorms.
.SATURDAY...Southeast winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. Seas 3 to 5 feet. A chance of showers
and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms.

$$

GMZ350-230345-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-
1007 AM CDT Tue Aug 22 2017

.REST OF TODAY...East winds 5 to 10 knots. Seas 2 feet. Isolated
showers and thunderstorms early in the morning, then a chance of
showers and thunderstorms late in the morning. A slight chance of
showers and thunderstorms in the afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 1 to 2 feet. A
slight chance of showers and thunderstorms after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots becoming east in the
afternoon. Seas 1 to 2 feet. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 feet. A
slight chance of showers and thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. A chance
of showers and thunderstorms.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet
with occasional seas up to 8 feet. A chance of showers and
thunderstorms.
.FRIDAY...East winds 20 to 25 knots becoming southeast 20 to
30 knots in the afternoon. Seas 6 to 9 feet with occasional seas
up to 11 feet. A chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 20 to 25 knots. Seas 6 to 8 feet
with occasional seas up to 10 feet subsiding to 5 to 6 feet with
occasional seas up to 7 feet after midnight. A chance of showers
and thunderstorms.
.SATURDAY...South winds 15 to 20 knots. Seas 3 to 5 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds around 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms.

$$

GMZ375-230345-
Waters from High Island to Freeport from 20 to 60 NM-
1007 AM CDT Tue Aug 22 2017

.REST OF TODAY...East winds 5 to 10 knots. Seas 2 feet. Scattered
showers and thunderstorms early in the morning, then a slight
chance of showers and thunderstorms in the afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas 2 feet. A slight
chance of showers and thunderstorms after midnight.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet. A chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 feet. A
slight chance of showers and thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 4 feet. A chance
of showers and thunderstorms.
.THURSDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 7 feet building to 6 to 8 feet with
occasional seas up to 10 feet after midnight. A chance of showers
and thunderstorms.
.FRIDAY...Southeast winds 15 to 20 knots. Seas 6 to 9 feet with
occasional seas up to 11 feet. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots. Seas 6 to 8 feet
with occasional seas up to 10 feet. A chance of showers and
thunderstorms.
.SATURDAY...Southeast winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 8 feet. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southeast winds around 15 knots. Seas 4 to
5 feet with occasional seas up to 6 feet. A chance of showers and
thunderstorms.

$$

GMZ370-230345-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-
1007 AM CDT Tue Aug 22 2017

.REST OF TODAY...East winds 5 to 10 knots. Seas 2 feet. Scattered
showers and thunderstorms early in the morning, then a slight
chance of showers and thunderstorms in the afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 2 feet. A slight chance
of showers and thunderstorms after midnight.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet. A chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. A
slight chance of showers and thunderstorms.
.THURSDAY...Northeast winds 10 to 15 knots becoming east 15 to
20 knots in the afternoon. Seas 2 to 4 feet building to 4 to
6 feet with occasional seas up to 7 feet in the afternoon. A
chance of showers and thunderstorms.
.THURSDAY NIGHT...East winds 15 to 20 knots increasing to 20 to
25 knots after midnight. Seas 5 to 7 feet with occasional seas up
to 8 feet building to 7 to 9 feet with occasional seas up to
11 feet after midnight. A chance of showers and thunderstorms.
.FRIDAY...Southeast winds 20 to 30 knots. Seas 8 to 10 feet with
occasional seas up to 13 feet. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southeast winds 20 to 25 knots. Seas 7 to 10 feet
with occasional seas up to 13 feet subsiding to 6 to 8 feet with
occasional seas up to 10 feet after midnight. A chance of showers
and thunderstorms.
.SATURDAY...Southeast winds 15 to 20 knots. Seas 6 to 7 feet with
occasional seas up to 8 feet subsiding to 4 to 6 feet with
occasional seas up to 7 feet in the afternoon. A chance of
showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds around 15 knots. Seas 4 to
5 feet with occasional seas up to 6 feet. A chance of showers and
thunderstorms.

$$



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