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 30
000
FZUS54 KHGX 172139
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
339 PM CST Fri Nov 17 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.

GMZ300-181015-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
339 PM CST Fri Nov 17 2017

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
Increasing southerly winds and seas can be expected tonight
through Saturday with the approach of a cold front. This front
will push off the coast Saturday night with a strengthening
offshore flow and seas building further in its wake. Gusts near
gale force will be possible Saturday night behind the front with
elevated winds and waves persisting through Sunday morning. Light
offshore flow becomes established by late Sunday and is expected
to become onshore again by Tuesday ahead of the next cold front.

$$

GMZ330-335-181015-
Matagorda Bay-Galveston Bay-
339 PM CST Fri Nov 17 2017

.TONIGHT...South winds 10 to 15 knots. Bay waters slightly
choppy.
.SATURDAY...Southwest winds 10 to 15 knots becoming northwest
15 to 20 knots in the afternoon. Bay waters slightly choppy
becoming choppy in the afternoon. A chance of showers in the
afternoon.
.SATURDAY NIGHT...North winds 15 to 25 knots. Bay waters choppy.
.SUNDAY...Northeast 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 around 10 knots becoming southeast in the
afternoon. Bay waters smooth to slightly choppy. A slight chance
of showers.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
A slight chance of showers.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers.
.WEDNESDAY...North winds 10 to 15 knots. Bay waters slightly
choppy. A slight chance of showers in the morning.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Bay waters
slightly choppy.

$$

GMZ350-355-181015-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-Coastal waters from High Island to Freeport out 20 NM-
339 PM CST Fri Nov 17 2017

...Small Craft Should Exercise Caution...

.TONIGHT...South winds 15 to 20 knots. Seas 3 to 5 feet.
.SATURDAY...Southwest winds around 15 knots becoming west in the
afternoon. Seas 3 to 5 feet. A chance of showers in the
afternoon.
.SATURDAY NIGHT...North winds 20 to 30 knots becoming 20 to
25 knots after midnight. Seas 3 to 5 feet.
.SUNDAY...Northeast winds 15 to 25 knots becoming 15 to 20 knots
in the afternoon. Seas 3 to 5 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet.
.MONDAY...East winds around 10 knots. Seas 2 to 3 feet. A slight
chance of showers.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 2 feet. A
slight chance of showers.
.TUESDAY...Southeast winds around 10 knots becoming 10 to
15 knots 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 2 to 4 feet. A
slight chance of showers in the morning.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Seas 3 to 4 feet.

$$

GMZ370-375-181015-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
339 PM CST Fri Nov 17 2017

...Small Craft Should Exercise Caution...

.TONIGHT...South winds 15 to 20 knots. Seas 2 to 4 feet building
to 4 to 5 feet with occasional seas up to 6 feet after midnight.
.SATURDAY...Southwest winds 15 to 20 knots becoming west in the
afternoon. Seas 4 to 6 feet with occasional seas up to 7 feet. A
chance of showers in the afternoon.
.SATURDAY NIGHT...North winds 20 to 30 knots becoming 25 to
30 knots after midnight. Seas 6 to 8 feet with occasional seas up
to 10 feet. A slight chance of showers in the evening.
.SUNDAY...Northeast winds 20 to 25 knots decreasing to 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 10 to 15 knots. Seas 3 to 5 feet.
.MONDAY...East winds around 10 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 slight chance of showers.
.TUESDAY...Southeast winds around 10 knots becoming 10 to
15 knots 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 3 to 5 feet. A chance of
showers.
.WEDNESDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 7 feet. A chance of showers in the
morning, then a slight chance of showers in the afternoon.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Seas 4 to 5 feet
with occasional seas up to 6 feet.

$$



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