Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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997
FZUS54 KHGX 230843
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
343 AM CDT Mon Sep 23 2024

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.

GMZ300-232130-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
343 AM CDT Mon Sep 23 2024

.Synopsis For High Island to the Matagorda Ship Channel Out 60 NM
including Galveston and Matagorda Bays.

Light to occasionally moderate onshore flow and low seas will
continue through Tuesday. There will be increased chances of
scattered showers and isolated thunderstorms over the coastal
waters beginning through Tuesday as well. The winds gradually back
to the NE on Wednesday ahead of an approaching cold front, and
there will also be increased coverage of the showers and storms on
Wednesday. This cold front is expected to move through the
coastal waters late Wednesday night into Thursday bringing
moderate to strong northerly winds through Thursday night. Seas
will likely increase to 4 to 6 feet due to the increase in winds.
Small Craft Advisories may be needed.

$$

GMZ335-232130-
Galveston Bay-
343 AM CDT Mon Sep 23 2024

.TODAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
slight chance of showers. A slight chance of thunderstorms this
afternoon.
.TONIGHT...Southeast winds 5 to 10 knots, becoming south late.
Bay waters smooth. A slight chance of showers and thunderstorms
early in the evening.
.TUESDAY...Northeast winds around 5 knots, veering to southeast
around 5 knots in the afternoon. Bay waters smooth. A chance of
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 5 knots, backing to north
late. Bay waters smooth. A chance of showers and thunderstorms
early in the evening. A chance of showers after midnight. A
chance of thunderstorms late.
.WEDNESDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...North winds 15 to 20 knots, easing to around 15 knots
in the afternoon. Bay waters choppy, easing to slightly choppy in
the afternoon.
.THURSDAY NIGHT...North winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...Northwest winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY NIGHT...West winds around 10 knots. Bay waters smooth to
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-232130-
Matagorda Bay-
343 AM CDT Mon Sep 23 2024

.TODAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.TONIGHT...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms early in the evening. A
slight chance of showers after midnight. A slight chance of
thunderstorms late.
.TUESDAY...East winds 5 to 10 knots. Bay waters smooth. A chance
of showers. A chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. A chance of showers and thunderstorms.
.WEDNESDAY...Northeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers and thunderstorms.
.WEDNESDAY NIGHT...North winds 10 to 15 knots. Bay waters
slightly choppy.
.THURSDAY...North winds 10 to 15 knots. Bay waters slightly
choppy.
.THURSDAY NIGHT...North winds 10 to 15 knots. Bay waters slightly
choppy.
.FRIDAY...Northwest winds around 10 knots. Bay waters smooth to
slightly choppy.
.FRIDAY NIGHT...West winds around 10 knots. Bay waters smooth to
slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-232130-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
343 AM CDT Mon Sep 23 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet or
less. Wave Detail: Southeast 2 feet at 5 seconds. A chance of
showers and thunderstorms.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet or
less. Wave Detail: Southeast 2 feet at 5 seconds. A chance of
showers and thunderstorms early in the evening. A slight chance
of showers after midnight. A slight chance of thunderstorms late.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet or less.
Wave Detail: Southeast 2 feet at 5 seconds. A chance of showers.
A chance of thunderstorms late.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet or less. Wave Detail: Southeast 2 feet at 5 seconds. A
chance of showers and thunderstorms early in the evening. A
chance of showers after midnight. A chance of thunderstorms late.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet
or less. Wave Detail: East 2 feet at 5 seconds. A chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...Northeast winds around 15 knots, becoming
north 15 to 20 knots after midnight. Seas around 2 feet or less,
then around 3 feet after midnight. Wave Detail: Southeast 1 foot
at 4 seconds. A chance of showers and thunderstorms in the
evening.
.THURSDAY...North winds 15 to 20 knots. Seas 3 to 5 feet.
.THURSDAY NIGHT...North winds around 15 knots. Seas 3 to 5 feet.
.FRIDAY...Northwest winds 10 to 15 knots. Seas 3 to 5 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas around 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-232130-
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-
343 AM CDT Mon Sep 23 2024

.TODAY...Southeast winds 5 to 10 knots. Seas around 2 feet or
less. Wave Detail: Southeast 2 feet at 5 seconds. A chance of
showers. A slight chance of thunderstorms early this morning,
then a chance of thunderstorms late this morning and afternoon.
.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet or
less. Wave Detail: East 2 feet at 5 seconds. A chance of showers
and thunderstorms early in the evening. A slight chance of
showers after midnight. A slight chance of thunderstorms late.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet or less.
Wave Detail: East 2 feet at 5 seconds. A chance of showers.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas around 2 feet or
less. Wave Detail: East 2 feet at 5 seconds.
.WEDNESDAY...Northeast winds 10 to 15 knots. Seas around 2 feet
or less. Wave Detail: East 2 feet at 5 seconds. A chance of
showers. A chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds around 15 knots, becoming
north 15 to 20 knots after midnight. Seas around 2 feet or less,
then around 3 feet after midnight. Wave Detail: Southeast 1 foot
at 4 seconds, becoming east 1 foot at 5 seconds. A chance of
thunderstorms in the evening. A chance of showers.
.THURSDAY...North winds 15 to 20 knots. Seas 3 to 5 feet,
building to 5 to 6 feet, occasionally to 8 feet in the afternoon.
.THURSDAY NIGHT...North winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet.
.FRIDAY...Northwest winds 15 to 20 knots, easing to around
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$