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FZUS54 KHGX 180957
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
357 AM CST Tue Dec 18 2018

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.

GMZ300-182215-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
357 AM CST Tue Dec 18 2018

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
Patchy dense fog this morning should clear out during the day as
east winds develop. A low pressure system with a weak cold front
will move through the area on Wednesday with showers and perhaps a
few thunderstorms. A stronger surge of cold air and much stronger
winds near gale force arrives early Thursday morning. Persistent
strong northwest winds expected Thursday into Friday afternoon. A
gale watch may be needed along with low water advisories.

$$

GMZ335-182215-
Galveston Bay-
357 AM CST Tue Dec 18 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...

.TODAY...East winds 5 to 10 knots. Bay waters smooth. Patchy
dense fog in the morning.
.TONIGHT...East winds 5 to 10 knots. Bay waters smooth. A chance
of showers until early morning, then showers likely late.
.WEDNESDAY...East winds 5 to 10 knots becoming west in the
afternoon. Bay waters smooth. A chance of showers and isolated
thunderstorms.
.WEDNESDAY NIGHT...Northwest winds around 5 knots increasing to
10 to 15 knots after midnight. Bay waters smooth becoming
slightly choppy after midnight. A slight chance of showers in the
evening.
.THURSDAY...Northwest winds 15 to 25 knots becoming 20 to
25 knots in the afternoon. Bay waters choppy becoming rough in
the afternoon.
.THURSDAY NIGHT...Northwest winds 20 to 25 knots decreasing to
15 to 20 knots after midnight. Bay waters rough becoming choppy
after midnight.
.FRIDAY...Northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. Bay waters slightly choppy becoming
smooth in the afternoon.
.FRIDAY NIGHT...West winds 5 to 10 knots becoming southwest after
midnight. Bay waters smooth.
.SATURDAY...South winds 5 to 10 knots. Bay waters smooth.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

$$

GMZ330-182215-
Matagorda Bay-
357 AM CST Tue Dec 18 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...

.TODAY...East winds 5 to 10 knots. Bay waters smooth. Patchy fog
in the morning. A slight chance of showers in the late morning
and afternoon.
.TONIGHT...East winds 5 to 10 knots. Bay waters smooth. A chance
of showers.
.WEDNESDAY...West winds 5 to 10 knots. Bay waters smooth. A
slight chance of showers in the morning.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. Bay waters smooth becoming
slightly choppy after midnight.
.THURSDAY...Northwest winds 15 to 25 knots becoming 20 to
25 knots in the afternoon. Bay waters choppy becoming rough in
the afternoon.
.THURSDAY NIGHT...Northwest winds 15 to 25 knots becoming 15 to
20 knots after midnight. Bay waters choppy.
.FRIDAY...Northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. Bay waters slightly choppy becoming
smooth in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
.SATURDAY...South winds around 10 knots. Bay waters smooth to
slightly choppy.
.SATURDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.

$$

GMZ350-355-182215-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
357 AM CST Tue Dec 18 2018

.TODAY...East winds 5 to 10 knots increasing to 10 to 15 knots in
the afternoon. Seas 1 to 2 feet. A slight chance of showers in
the afternoon.
.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. A chance
of showers until early morning, then showers likely late.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming west in the
afternoon. Seas 2 to 3 feet. A chance of showers in the morning.
Isolated thunderstorms. A slight chance of showers in the
afternoon.
.WEDNESDAY NIGHT...West winds 5 to 10 knots becoming northwest
15 to 20 knots after midnight. Seas 2 to 3 feet. A slight chance
of showers in the evening.
.THURSDAY...Northwest winds 20 to 25 knots increasing to 25 to
30 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.
.THURSDAY NIGHT...Northwest winds 20 to 30 knots decreasing to
15 to 25 knots after midnight. Seas 3 to 5 feet.
.FRIDAY...Northwest winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet.
.FRIDAY NIGHT...West winds 5 to 10 knots becoming south after
midnight. Seas 1 to 2 feet.
.SATURDAY...South winds around 10 knots. Seas 2 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 1 to 2 feet.

$$

GMZ370-375-182215-
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-
357 AM CST Tue Dec 18 2018

.TODAY...Southeast winds 5 to 10 knots becoming east 10 to
15 knots in the afternoon. Seas 1 to 2 feet. A slight chance of
showers in the afternoon.
.TONIGHT...East winds 10 to 15 knots becoming southeast after
midnight. Seas 2 to 3 feet. A chance of showers.
.WEDNESDAY...Southwest winds 10 to 15 knots becoming west in the
afternoon. Seas 2 to 3 feet. A chance of showers in the morning.
Isolated thunderstorms. A slight chance of showers in the
afternoon.
.WEDNESDAY NIGHT...West winds around 10 knots becoming northwest
15 to 20 knots after midnight. Seas 2 to 4 feet. A slight chance
of showers.
.THURSDAY...Northwest winds 20 to 30 knots increasing to 25 to
35 knots in the afternoon. Seas 4 to 6 feet with occasional seas
up to 7 feet building to 7 to 10 feet with occasional seas up to
13 feet in the afternoon.
.THURSDAY NIGHT...Northwest winds 25 to 35 knots decreasing to
20 to 30 knots after midnight. 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.
.FRIDAY...Northwest winds 15 to 25 knots decreasing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet with occasional seas
up to 7 feet subsiding to 2 to 3 feet in the afternoon.
.FRIDAY NIGHT...West winds 5 to 10 knots becoming southwest after
midnight. Seas 1 to 2 feet.
.SATURDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots. Seas 2 feet.

$$

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