Coastal Waters Forecast
Issued by NWS Houston/Galveston, TX

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FZUS54 KHGX 181508
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
1008 AM CDT Tue Jun 18 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.

GMZ300-190415-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
1008 AM CDT Tue Jun 18 2024

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

A broad area of low pressure over the southwestern Gulf of Mexico
is expected to become a tropical storm as it tracks towards
Mexico. Highs winds, hazardous seas, and above normal coastal
water levels are likely well north of the center of the storm.
With the exception of Galveston Bay, a Tropical Storm Warning is
in effect over our coastal waters. Small Craft Advisory remains
in effect for Galveston Bay, but some gusts above 35 knots are
possible at times. Water levels will be rising and would
anticipate some coastal flooding in the bays and along the
beaches. Higher winds are possible in thunderstorms. Small craft
should consider remaining in port until weather conditions start
improving later this week.

$$

GMZ335-190415-
Galveston Bay-
1008 AM CDT Tue Jun 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...

.REST OF TODAY...East winds 20 to 25 knots. Bay waters rough. A
chance of thunderstorms. A chance of showers late this morning,
then showers likely this afternoon.
.TONIGHT...East winds around 30 knots. Bay waters very rough.
Showers with thunderstorms likely in the evening, then showers
with a chance of thunderstorms after midnight.
.WEDNESDAY...East winds around 30 knots with gusts up to
40 knots. Bay waters very rough. Showers with a chance of
thunderstorms in the morning, then showers with thunderstorms
likely in the afternoon.
.WEDNESDAY NIGHT...East winds 25 to 30 knots. Gusts to 40 knots.
Bay waters very rough. Showers with thunderstorms likely in the
evening, then a chance of showers and thunderstorms after
midnight.
.THURSDAY...East winds 20 to 25 knots, easing to around 20 knots
in the afternoon. Bay waters rough, easing to choppy in the
afternoon. A chance of showers and thunderstorms.
.THURSDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy. A
chance of showers and thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Bay waters slightly choppy.
A chance of showers and thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms early in the
evening.
.SATURDAY...East winds around 10 knots. Bay waters smooth to
slightly choppy.
.SATURDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy.

Winds and waves higher in and near thunderstorms.

$$

GMZ330-190415-
Matagorda Bay-
1008 AM CDT Tue Jun 18 2024

...TROPICAL STORM WARNING IN EFFECT...

.REST OF TODAY...East winds 20 to 25 knots, rising to around
30 knots this afternoon. Bay waters rough, rising to very rough
this afternoon. A chance of showers and thunderstorms.
.TONIGHT...Northeast winds 25 to 35 knots. Gusts to 50 knots. Bay
waters very rough. A chance of thunderstorms. Showers likely in
the evening, then showers after midnight.
.WEDNESDAY...Northeast winds 25 to 35 knots with gusts up to
50 knots. Bay waters very rough. Showers. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.WEDNESDAY NIGHT...East winds 25 to 35 knots. Gusts to 50 knots.
Bay waters very rough. Showers with thunderstorms likely until
early morning, then showers likely with a chance of thunderstorms
late.
.THURSDAY...East winds 20 to 25 knots. Bay waters rough. Showers
and thunderstorms likely.
.THURSDAY NIGHT...East winds 20 to 25 knots, easing to around
20 knots after midnight. Bay waters rough, easing to choppy after
midnight. Showers and thunderstorms likely early in the evening,
then a chance of showers and thunderstorms in the late evening
and overnight.
.FRIDAY...East winds 10 to 15 knots. Bay waters slightly choppy.
Showers and thunderstorms likely until late afternoon, then a
chance of showers and thunderstorms late.
.FRIDAY NIGHT...East winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms early in the
evening. A chance of showers and thunderstorms after midnight.
.SATURDAY...East winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers and thunderstorms.
.SATURDAY NIGHT...East winds around 10 knots. Bay waters smooth
to slightly choppy. A chance of showers and thunderstorms early
in the evening.

Winds and waves higher in and near thunderstorms.

$$

GMZ350-355-190415-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
1008 AM CDT Tue Jun 18 2024

...TROPICAL STORM WARNING IN EFFECT...

.REST OF TODAY...East winds around 30 knots with gusts up to
40 knots. Seas 8 to 11 feet, occasionally to 14 feet. Wave
Detail: Southeast 11 feet at 9 seconds. A chance of
thunderstorms. A chance of showers late this morning, then
showers likely this afternoon.
.TONIGHT...East winds 25 to 35 knots. Gusts to 50 knots after
midnight. Seas 9 to 13 feet, occasionally to 17 feet. Wave
Detail: Southeast 12 feet at 10 seconds. Showers. Thunderstorms
likely, mainly in the evening.
.WEDNESDAY...East winds 25 to 35 knots with gusts up to 50 knots.
Seas 9 to 13 feet, occasionally to 17 feet. Wave Detail:
Southeast 12 feet at 10 seconds. Thunderstorms likely. Showers.
.WEDNESDAY NIGHT...East winds 25 to 35 knots. Gusts to 50 knots
in the evening. Seas 9 to 13 feet, occasionally to 17 feet. Wave
Detail: Southeast 12 feet at 10 seconds. Showers with
thunderstorms likely in the evening, then showers likely with a
chance of thunderstorms after midnight.
.THURSDAY...East winds around 30 knots. Seas 8 to 11 feet,
occasionally to 14 feet. Wave Detail: Southeast 10 feet at
9 seconds. Showers and thunderstorms likely until late afternoon,
then a chance of showers and thunderstorms late.
.THURSDAY NIGHT...East winds 20 to 25 knots, easing to around
20 knots after midnight. Seas 6 to 9 feet, occasionally to
11 feet. A chance of showers and thunderstorms.
.FRIDAY...East winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of showers and thunderstorms.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. A
chance of showers and thunderstorms early in the evening.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. A chance
of showers and thunderstorms until late afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ370-375-190415-
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-
1008 AM CDT Tue Jun 18 2024

...TROPICAL STORM WARNING IN EFFECT...

.REST OF TODAY...East winds around 30 knots with gusts up to
40 knots. Seas 10 to 12 feet, occasionally to 15 feet, building
to 10 to 14 feet, occasionally to 18 feet this afternoon. Wave
Detail: East 12 feet at 10 seconds. A chance of thunderstorms. A
chance of showers late this morning, then showers this afternoon.
.TONIGHT...Northeast winds 30 to 35 knots with gusts up to
50 knots. Seas 12 to 15 feet, occasionally to 19 feet. Wave
Detail: East 14 feet at 10 seconds. Showers with thunderstorms
likely.
.WEDNESDAY...East winds 30 to 35 knots with gusts up to 50 knots.
Seas 12 to 15 feet, occasionally to 19 feet. Wave Detail: East
14 feet at 10 seconds. Showers and thunderstorms.
.WEDNESDAY NIGHT...East winds 30 to 35 knots with gusts up to
50 knots, easing to 25 to 30 knots after midnight. Seas 10 to
14 feet, occasionally to 18 feet. Wave Detail: East 14 feet at
10 seconds. Showers with thunderstorms likely in the evening,
then showers with a chance of thunderstorms after midnight.
.THURSDAY...East winds around 30 knots. Seas 9 to 12 feet,
occasionally to 15 feet. Wave Detail: East 11 feet at 9 seconds.
Showers with thunderstorms likely until late afternoon, then a
chance of showers and thunderstorms late.
.THURSDAY NIGHT...East winds 20 to 25 knots. Seas 7 to 10 feet,
occasionally to 13 feet. Wave Detail: East 8 feet at 8 seconds. A
chance of showers and thunderstorms.
.FRIDAY...East winds 15 to 20 knots. Seas 5 to 8 feet,
occasionally to 10 feet. Showers and thunderstorms likely until
late afternoon, then a chance of showers and thunderstorms late.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of showers and thunderstorms
early in the evening. A chance of showers and thunderstorms after
midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. A chance
of showers and thunderstorms.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. A
chance of showers and thunderstorms early in the evening. A
chance of showers and thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

$$