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National Weather Service Marine Forecast FZUS54 KHGX

FZUS54 KHGX 190840
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
340 AM CDT Mon Aug 19 2019

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.

GMZ300-192115-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
340 AM CDT Mon Aug 19 2019

SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM

A moderate onshore flow will gradually diminish by Tuesday morning.
A typical summertime onshore flow pattern will continue through
the remainder of the week as high pressure builds into the region,
producing lower seas and lighter winds.



GMZ335-192115-
Galveston Bay-
340 AM CDT Mon Aug 19 2019

TODAY
South winds 5 to 10 knots. Bay waters smooth. A chance
of showers in the morning. A chance of thunderstorms late in the
morning, then a slight chance of showers and thunderstorms in the
afternoon.

TONIGHT
South winds 5 to 10 knots becoming southwest after
midnight. Bay waters smooth. A slight chance of showers after
midnight.

TUESDAY
Southwest winds around 5 knots becoming south in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.

TUESDAY NIGHT
South winds 5 to 10 knots. Bay waters smooth. A
slight chance of showers after midnight.

WEDNESDAY
South winds around 5 knots becoming southeast in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.

WEDNESDAY NIGHT
South winds 5 to 10 knots. Bay waters smooth.
A slight chance of showers and thunderstorms after midnight.

THURSDAY
South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.

THURSDAY NIGHT
South winds 5 to 10 knots. Bay waters smooth. A
slight chance of showers and thunderstorms.

FRIDAY
South winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms.

FRIDAY NIGHT
South winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.



GMZ330-192115-
Matagorda Bay-
340 AM CDT Mon Aug 19 2019

TODAY
South winds 5 to 10 knots becoming southeast 10 to
15 knots in the afternoon. Bay waters smooth becoming slightly
choppy in the afternoon. A slight chance of showers until late
afternoon. A slight chance of thunderstorms in the late morning
and early afternoon.

TONIGHT
Southeast winds around 10 knots becoming south after
midnight. Bay waters smooth to slightly choppy becoming smooth
after midnight. A slight chance of showers after midnight.

TUESDAY
South winds 5 to 10 knots. Bay waters smooth. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon.

TUESDAY NIGHT
South winds 5 to 10 knots. Bay waters smooth.

WEDNESDAY
Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. Bay waters slightly choppy becoming
smooth after midnight.

THURSDAY
Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.

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

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

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



GMZ350-355-192115-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
340 AM CDT Mon Aug 19 2019

TODAY
South winds 5 to 10 knots. Seas 3 to 4 feet. A chance of
showers early in the morning, then a slight chance of showers and
thunderstorms in the late morning and afternoon.

TONIGHT
Southeast winds 10 to 15 knots becoming south after
midnight. Seas 2 to 4 feet. A slight chance of showers after
midnight.

TUESDAY
South winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms.

TUESDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 3 feet. A
slight chance of showers after midnight.

WEDNESDAY
Southeast winds 5 to 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to
3 feet. A slight chance of showers and thunderstorms after
midnight.

THURSDAY
South winds 5 to 10 knots. Seas 2 to 3 feet. A chance
of showers and thunderstorms.

THURSDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.

FRIDAY
South winds 10 to 15 knots. Seas 2 to 4 feet. A chance
of showers and thunderstorms.

FRIDAY NIGHT
South winds 10 to 15 knots. Seas 2 to 4 feet. A
chance of showers and thunderstorms.



GMZ375-192115-
Waters from High Island to Freeport TX from 20 to 60 NM-
340 AM CDT Mon Aug 19 2019

TODAY
South winds 5 to 10 knots. Seas 3 to 4 feet. A slight
chance of showers. A slight chance of thunderstorms in the late
morning and afternoon.

TONIGHT
South winds 10 to 15 knots. Seas 3 to 4 feet. A slight
chance of showers after midnight. A chance of showers late.

TUESDAY
South winds 5 to 10 knots. Seas 3 to 4 feet. A chance
of showers and thunderstorms.

TUESDAY NIGHT
South winds around 10 knots. Seas 3 feet. A
slight chance of showers after midnight.

WEDNESDAY
Southeast winds 5 to 10 knots. Seas 3 feet. A chance
of showers and thunderstorms.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 feet. A
chance of showers and thunderstorms after midnight.

THURSDAY
South winds 5 to 10 knots. Seas 3 feet. A chance of
showers and thunderstorms.

THURSDAY NIGHT
South winds 10 to 15 knots. Seas 3 feet. A
chance of showers and thunderstorms.

FRIDAY
South winds around 10 knots. Seas 3 to 4 feet. A chance
of showers and thunderstorms.

FRIDAY NIGHT
South winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.



GMZ370-192115-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-
340 AM CDT Mon Aug 19 2019

TODAY
South winds 10 to 15 knots decreasing to 5 to 10 knots
in the afternoon. Seas 4 feet. A slight chance of showers in the
morning. A slight chance of thunderstorms late in the morning. A
slight chance of showers and thunderstorms late.

TONIGHT
Southeast winds 10 to 15 knots becoming south after
midnight. Seas 4 feet. A slight chance of showers after midnight.

TUESDAY
South winds 5 to 10 knots becoming southeast in the
afternoon. Seas 3 to 4 feet. A chance of showers and
thunderstorms in the morning, then a slight chance of showers and
thunderstorms in the afternoon.

TUESDAY NIGHT
South winds 10 to 15 knots. Seas 3 feet. A
slight chance of showers after midnight.

WEDNESDAY
Southeast winds 5 to 10 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.

WEDNESDAY NIGHT
Southeast winds 10 to 15 knots. Seas 3 feet. A
slight chance of showers and thunderstorms after midnight.

THURSDAY
Southeast winds around 10 knots. Seas 3 feet. A
chance of showers and thunderstorms.

THURSDAY NIGHT
South winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.

FRIDAY
South winds 10 to 15 knots. Seas 3 to 4 feet. A chance
of showers and thunderstorms.

FRIDAY NIGHT
Southeast winds 10 to 15 knots. Seas 4 feet. A
chance of showers and thunderstorms.