Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 220254
CWFHGX

Coastal Waters Forecast
National Weather Service Houston/Galveston TX
954 PM CDT Mon Aug 21 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.

GMZ300-221515-
Synopsis for High Island to the Matagorda Ship Channel out 60
nautical miles including Galveston and Matagorda Bays
954 PM CDT Mon Aug 21 2017

.SYNOPSIS FOR HIGH ISLAND TO MATAGORDA SHIP CHANNEL OUT 60 NM...
Light winds and low seas are expected into midweek. We will be
keeping an eye on the remnants of Harvey to see if it can reorganize
over the Bay of Campeche once it makes it there on Wednesday. If so,
higher swells can be expected than currently in the forecast going
into late week. There is considerable uncertainty at this time.

$$

GMZ335-221515-
Galveston Bay-
954 PM CDT Mon Aug 21 2017

.REST OF TONIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Isolated showers in the late evening and overnight.
Isolated thunderstorms after midnight.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Isolated showers and thunderstorms early in the morning, then
scattered showers and thunderstorms late in the morning. A slight
chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots becoming south
after midnight. Bay waters smooth.
.WEDNESDAY...Northeast winds around 5 knots becoming southeast in
the afternoon. Bay waters smooth. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A slight chance of showers and thunderstorms.
.THURSDAY...Northeast winds 5 to 10 knots becoming east in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.FRIDAY...East winds 5 to 10 knots. Bay waters smooth. A chance
of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A slight chance of showers and thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms.

$$

GMZ330-221515-
Matagorda Bay-
954 PM CDT Mon Aug 21 2017

.REST OF TONIGHT...Southeast winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. Bay waters slightly choppy becoming
smooth after midnight. Isolated showers in the late evening and
overnight. Isolated thunderstorms after midnight.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Isolated showers and thunderstorms early in the morning, then
scattered showers and thunderstorms late in the morning. A slight
chance of showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth.
.WEDNESDAY...Northeast winds around 5 knots becoming southeast in
the afternoon. Bay waters smooth. A slight chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A slight chance of showers and thunderstorms.
.THURSDAY...Northeast winds 5 to 10 knots becoming east in the
afternoon. Bay waters smooth. A chance of showers and
thunderstorms.
.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.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms.
.SATURDAY...Southeast winds 10 to 15 knots. Bay waters 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.

$$

GMZ350-355-221515-
Coastal waters from Freeport to the Matagorda Ship Channel out
20 NM-Coastal waters from High Island to Freeport out 20 NM-
954 PM CDT Mon Aug 21 2017

.REST OF TONIGHT...Southeast winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. Seas 2 feet. Isolated showers and
thunderstorms in the late evening and overnight.
.TUESDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated
showers and thunderstorms early in the morning, then scattered
showers and thunderstorms late in the morning. A slight chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 feet.
.WEDNESDAY...Northeast winds around 5 knots becoming east in the
afternoon. Seas 1 to 2 feet. A chance of showers and
thunderstorms in the morning, then a slight chance of showers and
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 1 to
2 feet. A slight chance of showers and thunderstorms.
.THURSDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. A slight
chance of showers and thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots increasing to 15 to
20 knots after midnight. Seas 2 to 3 feet. A chance of showers
and thunderstorms.
.FRIDAY...Southeast winds 15 to 20 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
A chance of showers and thunderstorms.
.SATURDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. A chance of showers and thunderstorms.

$$

GMZ370-375-221515-
Waters from Freeport to the Matagorda Ship Channel from 20 to
60 NM-Waters from High Island to Freeport from 20 to 60 NM-
954 PM CDT Mon Aug 21 2017

.REST OF TONIGHT...Southeast winds 10 to 15 knots decreasing to
5 to 10 knots after midnight. Seas 2 to 3 feet. Isolated showers
and thunderstorms in the late evening and overnight.
.TUESDAY...East winds 5 to 10 knots. Seas 2 feet. Scattered
showers and thunderstorms in the morning, then a slight chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 feet.
.WEDNESDAY...East winds 5 to 10 knots. Seas 2 feet. A chance of
showers and thunderstorms in the morning, then a slight chance of
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 2 feet. A
slight chance of showers and thunderstorms.
.THURSDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. A slight
chance of showers and thunderstorms.
.THURSDAY NIGHT...East winds 10 to 15 knots increasing to 15 to
20 knots after midnight. Seas 2 to 4 feet. A chance of showers
and thunderstorms.
.FRIDAY...Southeast winds 15 to 20 knots. Seas 4 to 6 feet with
occasional seas up to 7 feet. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 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 3 to 4 feet. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 feet. A
chance of showers and thunderstorms.

$$



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