Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 181531
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
931 AM CST Sat Nov 18 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.

GMZ300-190430-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
931 AM CST Sat Nov 18 2017

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
Moderate to strong south winds will persist today ahead of a cold
front. This cold front will push off the coast by this evening
with strengthening offshore winds and increasing sea heights in
its wake. Frequent gale force gusts are expected Saturday night
with elevated winds and waves persisting through Sunday morning.
Weakening northeast winds and lowering seas can be expected late
Sunday afternoon through Sunday night. Light to moderate east to
southeast winds can then be expected until the next cold front
moves through the area late Tuesday into early Wednesday.

$$

GMZ330-335-190430-
Matagorda Bay-Galveston Bay-
931 AM CST Sat Nov 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM CST THIS EVENING
THROUGH SUNDAY MORNING...

.REST OF TODAY...Southwest winds around 15 knots becoming west in
the afternoon. Bay waters slightly choppy to choppy becoming
choppy in the afternoon. A chance of showers in the afternoon.
.TONIGHT...North winds 20 to 25 knots becoming 15 to 25 knots
after midnight. Bay waters rough becoming choppy after midnight.
.SUNDAY...North winds 15 to 20 knots decreasing to 10 to 15 knots
in the afternoon. Bay waters choppy becoming slightly choppy in
the afternoon.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.
.MONDAY...East winds 5 to 10 knots becoming southeast in the
afternoon. Bay waters smooth. A slight chance of showers.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
A slight chance of showers.
.TUESDAY...South winds 5 to 10 knots becoming southeast in the
afternoon. Bay waters smooth becoming smooth to slightly choppy
in the afternoon. A chance of showers.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers.
.WEDNESDAY...North winds 15 to 20 knots. Bay waters choppy. A
slight chance of showers.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Bay waters
slightly choppy.

$$

GMZ350-355-190430-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-Coastal waters from High Island to Freeport out 20 NM-
931 AM CST Sat Nov 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM TO 9 PM CST THIS
EVENING...
...GALE WARNING IN EFFECT FROM 9 PM CST THIS EVENING THROUGH
SUNDAY MORNING...

...Small Craft Should Exercise Caution...

.REST OF TODAY...Southwest winds around 15 to 20 knots becoming
west around 15 knots in the afternoon. Seas 3 to 5 feet. A chance
of showers in the afternoon.
.TONIGHT...North winds 20 to 30 knots becoming 25 to 30 knots
after midnight. Seas 4 to 6 feet with occasional seas up to
7 feet. A slight chance of showers in the evening.
.SUNDAY...North winds 15 to 25 knots becoming 15 to 20 knots in
the afternoon. Seas 4 to 6 feet with occasional seas up to
7 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 feet. A
slight chance of showers.
.TUESDAY...South winds around 10 knots becoming southeast in the
afternoon. Seas 2 to 3 feet. A chance of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots becoming northeast
15 to 20 knots after midnight. Seas 2 to 4 feet. A chance of
showers.
.WEDNESDAY...North winds 15 to 20 knots. Seas 3 to 4 feet. A
slight chance of showers.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Seas 3 to 4 feet.

$$

GMZ370-375-190430-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
931 AM CST Sat Nov 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM TO 9 PM CST THIS
EVENING...
...GALE WARNING IN EFFECT FROM 9 PM CST THIS EVENING THROUGH
SUNDAY MORNING...

...Small Craft Should Exercise Caution...

.REST OF TODAY...Southwest winds 15 to 20 knots decreasing to
10 to 15 knots in the afternoon. Seas 4 to 6 feet with occasional
seas up to 7 feet. A chance of showers in the afternoon.
.TONIGHT...North winds 20 to 30 knots increasing to around
30 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 slight chance of showers in the
evening.
.SUNDAY...Northeast winds 20 to 30 knots becoming north 15 to
20 knots in the afternoon. Seas 6 to 8 feet with occasional seas
up to 10 feet subsiding to 4 to 6 feet with occasional seas up to
7 feet in the afternoon.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. Seas 3 to 5 feet.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers.
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of showers.
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers.
.TUESDAY NIGHT...East winds 10 to 15 knots becoming northeast
15 to 20 knots after midnight. Seas 2 to 4 feet. A chance of
showers.
.WEDNESDAY...North winds 20 to 25 knots. Seas 4 to 6 feet with
occasional seas up to 7 feet. A chance of showers.
.WEDNESDAY NIGHT...North winds 20 to 25 knots decreasing to 15 to
20 knots after midnight. Seas 4 to 6 feet with occasional seas up
to 7 feet.

$$



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