Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 210951
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
351 AM CST Wed Feb 21 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.

GMZ300-212230-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
351 AM CST Wed Feb 21 2018

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
A weak cold front will stall near, or just off the coast late
today and tonight then head back north on Thursday. Showers and
thunderstorms are possible ahead of this boundary. Areas of sea
fog will continue until the next front pushes off the coast late
Saturday or Sunday.

$$

GMZ330-212230-
Matagorda Bay-
351 AM CST Wed Feb 21 2018

.TODAY...Southeast winds 10 to 15 knots becoming north late in the
day. Bay waters slightly choppy becoming rough in the afternoon.
A chance of showers and thunderstorms. Some thunderstorms may
produce heavy rainfall. Areas of fog.
.TONIGHT...North winds around 10 knots. Bay waters smooth to
slightly choppy. Showers likely and isolated thunderstorms.
.THURSDAY...Northeast winds around 10 knots becoming east in the
afternoon. Bay waters smooth to slightly choppy. A chance of
showers and isolated thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A slight chance of showers and isolated thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers and isolated thunderstorms.
Areas of fog.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A slight chance of showers and isolated
thunderstorms. Areas of fog.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and isolated thunderstorms.
.SATURDAY NIGHT...South winds 5 to 10 knots becoming northeast
after midnight. Bay waters smooth. A chance of showers and
isolated thunderstorms.
.SUNDAY...Northeast winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and a slight chance of
thunderstorms.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.
A chance of showers.

$$

GMZ350-212230-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-
351 AM CST Wed Feb 21 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.TODAY...Southeast winds 10 to 15 knots becoming south in the
afternoon. Seas 5 feet. A chance of showers and thunderstorms.
Some thunderstorms may produce heavy rainfall. Areas of fog.
.TONIGHT...Southeast winds 10 to 15 knots becoming northeast
after midnight. Seas 5 feet with occasional seas up to 7 feet.
Showers likely and isolated thunderstorms. Areas of fog.
.THURSDAY...East winds 10 to 15 knots becoming southeast in the
afternoon. Seas 4 to 5 feet. A chance of showers and isolated
thunderstorms. Areas of fog.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. A slight chance of showers and isolated thunderstorms.
Areas of fog.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet with
occasional seas up to 6 feet. A slight chance of showers and
isolated thunderstorms. Areas of fog.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet
with occasional seas up to 6 feet. A slight chance of showers and
isolated thunderstorms.
.SATURDAY...South winds 10 to 15 knots. Seas 5 to 6 feet with
occasional seas up to 7 feet. A chance of showers and isolated
thunderstorms.
.SATURDAY NIGHT...South winds 5 to 10 knots becoming northeast
10 to 15 knots after midnight. Seas 4 to 5 feet with occasional
seas up to 6 feet. A chance of showers and isolated
thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 4 to 5 feet with
occasional seas up to 6 feet. A chance of showers and a slight
chance of thunderstorms.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 5 feet.
A chance of showers and a slight chance of thunderstorms.

$$

GMZ335-212230-
Galveston Bay-
351 AM CST Wed Feb 21 2018

.TODAY...Southeast winds 10 to 15 knots. Bay waters choppy.
Showers and thunderstorms. Some thunderstorms may produce heavy
rainfall. Areas of fog.
.TONIGHT...Southeast winds 5 to 10 knots becoming east after
midnight. Bay waters smooth. Showers likely and isolated
thunderstorms. Areas of fog.
.THURSDAY...East 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 and isolated thunderstorms.
Areas of fog.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and isolated thunderstorms. Areas of
fog.
.FRIDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and isolated thunderstorms.
.FRIDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy. A chance of showers and isolated
thunderstorms. Areas of fog.
.SATURDAY...South winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and isolated thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots becoming north
5 to 10 knots after midnight. Bay waters slightly choppy becoming
smooth after midnight. A chance of showers and isolated
thunderstorms.
.SUNDAY...Northeast winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and a slight chance of
thunderstorms.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth.
A chance of showers and a slight chance of thunderstorms.

$$

GMZ355-212230-
Coastal waters from High Island to Freeport out 20 NM-
351 AM CST Wed Feb 21 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.TODAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Showers and thunderstorms likely. Some thunderstorms may produce
heavy rainfall. Areas of fog.
.TONIGHT...South winds 10 to 15 knots becoming southeast 5 to
10 knots after midnight. Seas 3 to 5 feet. Showers likely and
isolated thunderstorms. Areas of fog.
.THURSDAY...East winds 10 to 15 knots becoming southeast in the
afternoon. Seas 3 to 4 feet. A chance of showers and isolated
thunderstorms. Areas of fog.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A slight chance of showers and isolated thunderstorms.
Areas of fog.
.FRIDAY...Southeast winds around 10 knots. Seas 3 to 4 feet. A
slight chance of showers and isolated thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
A slight chance of showers and isolated thunderstorms.
.SATURDAY...South winds around 15 knots. Seas 3 to 4 feet. A
chance of showers and isolated thunderstorms.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots becoming north
after midnight. Seas 3 to 4 feet. A chance of showers and
isolated thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and a slight chance of thunderstorms.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet.
A chance of showers and a slight chance of thunderstorms.

$$

GMZ370-375-212230-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
351 AM CST Wed Feb 21 2018

...Small Craft Should Exercise Caution...

.TODAY...Southeast winds 15 to 20 knots. Seas 6 feet. A chance of
showers and thunderstorms. Some thunderstorms may produce heavy
rainfall.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 5 to 6 feet.
Showers likely and isolated thunderstorms.
.THURSDAY...Southeast winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. Seas 5 to 6 feet. A chance of showers
and isolated thunderstorms.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
6 feet. A slight chance of showers and isolated thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet with
occasional seas up to 6 feet. A slight chance of showers and
isolated thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 5 feet
with occasional seas up to 6 feet. A slight chance of showers and
isolated thunderstorms.
.SATURDAY...South winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 7 feet. A chance of showers and isolated
thunderstorms.
.SATURDAY NIGHT...South winds 10 to 15 knots becoming northeast
after midnight. Seas 4 to 6 feet with occasional seas up to
7 feet. A chance of showers and isolated thunderstorms.
.SUNDAY...Northeast winds 10 to 15 knots. Seas 4 to 6 feet with
occasional seas up to 7 feet. A chance of showers and a slight
chance of thunderstorms.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 6 feet
with occasional seas up to 7 feet. A chance of showers and a
slight chance of thunderstorms.

$$



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