Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
000
FZUS54 KHGX 182037
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
337 PM CDT Wed Oct 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.

GMZ300-190915-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
337 PM CDT Wed Oct 18 2017

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
East winds will gradually strengthen tonight and Thursday. A long
easterly fetch is currently setting up across the northern Gulf
of Mexico and will continue into the weekend resulting in elevated
seas and tides. chances of showers and thunderstorms will increase
Friday and continue through the weekend. A cold front and associated
showers and thunderstorms will push off the coast on Sunday.
Moderate to strong offshore winds can be expected in its wake.

$$

GMZ330-335-190915-
Matagorda Bay-Galveston Bay-
337 PM CDT Wed Oct 18 2017

.TONIGHT...East winds 5 to 10 knots. Bay waters smooth. A slight
chance of showers after midnight.
.THURSDAY...East winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers. A chance of thunderstorms in the
late morning and afternoon.
.THURSDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms in the morning,
then showers and thunderstorms likely in the afternoon.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms.
.SATURDAY...Southeast winds around 10 knots. Bay waters smooth to
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.
.SUNDAY...Southwest winds 5 to 10 knots becoming northwest 15 to
20 knots in the afternoon. Bay waters smooth becoming choppy in
the afternoon. Showers and thunderstorms likely.
.SUNDAY NIGHT...North winds 20 knots. Bay waters choppy. A slight
chance of showers and thunderstorms.
.MONDAY...North winds 10 to 15 knots. Bay waters slightly choppy.
.MONDAY NIGHT...North winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. Bay waters slightly choppy becoming
smooth after midnight.

$$

GMZ350-355-190915-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-Coastal waters from High Island to Freeport out 20 NM-
337 PM CDT Wed Oct 18 2017

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet.
.THURSDAY...East winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. Seas 3 to 5 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 4 to 5 feet with
occasional seas up to 6 feet. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. Seas 4 to 5 feet with occasional
seas up to 6 feet. A chance of showers and thunderstorms.
.SATURDAY...Southeast winds 10 to 15 knots. 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.
.SUNDAY...Southwest winds 5 to 10 knots becoming northwest 15 to
20 knots in the afternoon. Seas 2 to 4 feet. Showers and
thunderstorms likely.
.SUNDAY NIGHT...North winds 20 knots. Seas 3 to 5 feet building
to 5 to 6 feet with occasional seas up to 7 feet after midnight. A
chance of showers and thunderstorms.
.MONDAY...North winds 15 to 20 knots. Seas 3 to 5 feet.
.MONDAY NIGHT...North winds 10 to 15 knots. Seas 2 to 4 feet.

$$

GMZ370-375-190915-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
337 PM CDT Wed Oct 18 2017

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet.
.THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 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. A slight chance of showers and
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight.
.FRIDAY...Southeast winds 15 to 20 knots. Seas 5 to 6 feet with
occasional seas up to 7 feet. A chance of showers and
thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.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 10 to 15 knots. Seas 4 to 5 feet with
occasional seas up to 6 feet. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet with occasional seas up to 6 feet. A chance of showers and
thunderstorms.
.SUNDAY...Southwest winds 10 to 15 knots becoming northwest 15 to
20 knots in the afternoon. Seas 3 to 4 feet. Showers and
thunderstorms likely.
.SUNDAY NIGHT...North winds 20 to 25 knots. Seas 4 to 6 feet with
occasional seas up to 7 feet building to 6 to 7 feet with
occasional seas up to 8 feet after midnight. A chance of showers
and thunderstorms.
.MONDAY...North winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 7 feet.
.MONDAY NIGHT...North winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. Seas 3 to 5 feet.

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.