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National Weather Service Marine Forecast FZUS54 KHGX

FZUS54 KHGX 161513
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
1013 AM CDT Sun May 16 2021

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.

GMZ300-170415-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
1013 AM CDT Sun May 16 2021

SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM

Winds and seas are expected to increase into next week as
lowering surface pressures to our west tighten the surface
gradient. As a series of disturbances move through the area
during the coming week, chances of showers and thunderstorms will
increase with rainfall becoming more widespread and potentially
heavy next week. Mariners should prepare for increasing winds and
rough seas next week.



GMZ335-170415-
Galveston Bay-
1013 AM CDT Sun May 16 2021

Small Craft Should Exercise Caution


REST OF TODAY
Southeast winds 15 to 20 knots. Bay waters
choppy. A chance of showers and thunderstorms in the late morning
and early afternoon, then showers and thunderstorms likely late
in the afternoon.

TONIGHT
Southeast winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. Bay waters choppy becoming slightly
choppy after midnight. Showers and thunderstorms likely early in
the evening, then a chance of showers and thunderstorms late in
the evening. Showers and thunderstorms likely after midnight.

MONDAY
Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms early in the
morning, then showers and thunderstorms likely late in the
morning. A chance of showers and thunderstorms in the afternoon.

MONDAY NIGHT
Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A slight chance of showers and thunderstorms.

TUESDAY
Southeast winds 15 to 20 knots. Bay waters choppy. A
chance of showers and thunderstorms.

TUESDAY NIGHT
Southeast winds 15 to 20 knots. Bay waters
choppy. A chance of showers in the evening. A chance of
thunderstorms. Showers likely after midnight.

WEDNESDAY
Southeast winds 15 to 20 knots. Bay waters choppy. A
chance of thunderstorms in the morning. Showers. Thunderstorms
likely in the afternoon.

WEDNESDAY NIGHT
Southeast winds 15 to 20 knots. Bay waters
choppy. Thunderstorms likely in the evening. Showers likely. A
chance of thunderstorms after midnight.

THURSDAY
Southeast winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. Bay waters choppy becoming slightly
choppy in the afternoon. Showers and a chance of thunderstorms.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Bay waters
choppy. A chance of showers and a slight chance of thunderstorms.



GMZ330-170415-
Matagorda Bay-
1013 AM CDT Sun May 16 2021

Small Craft Should Exercise Caution


REST OF TODAY
Southeast winds 20 to 25 knots decreasing to
15 to 20 knots in the afternoon. Bay waters rough becoming choppy
in the afternoon. Showers and thunderstorms likely.

TONIGHT
Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms in the evening,
then a slight chance of showers and thunderstorms after midnight.

MONDAY
Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms in the morning,
then a slight chance of showers and thunderstorms in the
afternoon.

MONDAY NIGHT
Southeast winds around 15 knots. Bay waters
slightly choppy to choppy.

TUESDAY
Southeast winds 15 to 20 knots. Bay waters choppy. A
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon.

TUESDAY NIGHT
Southeast winds 15 to 20 knots. Bay waters
choppy. A chance of thunderstorms in the evening. A chance of
showers. A slight chance of thunderstorms after midnight.

WEDNESDAY
Southeast winds around 15 knots. Bay waters slightly
choppy to choppy. A chance of thunderstorms in the morning.
Showers likely. Thunderstorms likely in the afternoon.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Bay waters
slightly choppy. Showers likely and a chance of thunderstorms.

THURSDAY
Southeast winds 10 to 15 knots. Bay waters slightly
choppy. Showers likely and a chance of thunderstorms.

THURSDAY NIGHT
Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and a slight chance of
thunderstorms.



GMZ350-355-170415-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1013 AM CDT Sun May 16 2021

Small Craft Should Exercise Caution


REST OF TODAY
Southeast 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. A chance of showers and thunderstorms late in the
morning, then showers and thunderstorms likely in the afternoon.

TONIGHT
Southeast winds 15 to 20 knots. Seas 3 to 5 feet. A
chance of showers and thunderstorms.

MONDAY
Southeast winds around 15 knots. Seas 3 to 5 feet. A
chance of showers and thunderstorms.

MONDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
A slight chance of showers and thunderstorms after midnight.

TUESDAY
Southeast 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 morning, then a chance of showers and
thunderstorms in the afternoon.

TUESDAY 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.

WEDNESDAY
Southeast winds 15 to 20 knots. Seas 4 to 6 feet
with occasional seas up to 7 feet. Showers likely and a chance of
thunderstorms.

WEDNESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 5 to
7 feet with occasional seas up to 8 feet. Thunderstorms likely in
the evening. Showers likely. A chance of thunderstorms after
midnight.

THURSDAY
Southeast 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. Showers likely and a chance of thunderstorms.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Seas 4 to
6 feet with occasional seas up to 7 feet. A chance of showers and
a slight chance of thunderstorms.



GMZ370-375-170415-
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-
1013 AM CDT Sun May 16 2021

Small Craft Should Exercise Caution


REST OF TODAY
Southeast winds 15 to 25 knots becoming 15 to
20 knots in the afternoon. Seas 5 to 6 feet with occasional seas
up to 7 feet. A chance of showers and thunderstorms.

TONIGHT
Southeast winds 15 to 20 knots. Seas 5 to 6 feet with
occasional seas up to 7 feet. A chance of showers and
thunderstorms.

MONDAY
Southeast winds around 15 knots. Seas 5 to 6 feet with
occasional seas up to 7 feet. A chance of showers and
thunderstorms.

MONDAY NIGHT
Southeast winds 15 to 20 knots. Seas 5 to 6 feet
with occasional seas up to 7 feet.

TUESDAY
Southeast winds 15 to 20 knots. Seas 5 to 7 feet with
occasional seas up to 8 feet. A slight chance of showers and
thunderstorms.

TUESDAY NIGHT
Southeast winds around 20 knots. Seas 6 to
7 feet with occasional seas up to 8 feet. A chance of showers and
a slight chance of thunderstorms.

WEDNESDAY
Southeast winds around 20 knots. Seas 6 to 9 feet
with occasional seas up to 11 feet. A chance of showers in the
morning. A chance of thunderstorms. Showers likely in the
afternoon.

WEDNESDAY NIGHT
Southeast winds 15 to 20 knots. Seas 7 to
9 feet with occasional seas up to 11 feet. Showers likely and a
chance of thunderstorms.

THURSDAY
Southeast winds 15 to 20 knots decreasing to 10 to
15 knots in the afternoon. Seas 7 to 9 feet with occasional seas
up to 11 feet. Showers likely and a chance of thunderstorms.

THURSDAY NIGHT
Southeast winds 15 to 20 knots. Seas 6 to
9 feet with occasional seas up to 11 feet. A chance of showers
and a slight chance of thunderstorms.