Texas Coastal Marine Forecast

Expires:202509191800;;230379
FZUS54 KLCH 190517
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
1216 AM CDT Fri Sep 19 2025

Coastal waters from the Lower Atchafalaya River LA to High 
Island TX out 60 nautical miles including Sabine and 
Calcasieu Lakes and Vermilion and Cote Blanche Bays

Seas are provided as a range of the average height of the
highest one third of the waves, along with the occasional 
height of the average highest ten percent of the waves.


GMZ400-191800-
1216 AM CDT Fri Sep 19 2025

.Synopsis for Lower Atchafalaya River LA to High Island TX out
60 NM including Sabine and Calcasieu Lakes and Vermilion and Cote
Blanche Bays...

Winds and seas remain calm with winds below 10 knots and seas 
below 3 feet across the Gulf. The weather will also be calm 
through the weekend with little to no convection as a ridge builds
over the region.

For the second half of next week, a series of troughs will
increase winds, leading to higher waves. No hazards are expected
for next week, but continue to monitor the forecast closely.

$$


Expires:202509192345;;246954
FZUS54 KHGX 191124
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
624 AM CDT Fri Sep 19 2025

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.


GMZ370-375-192345-
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-
624 AM CDT Fri Sep 19 2025

.REST OF TODAY...East winds around 10 knots, increasing to 10 to
15 knots late. Seas around 2 feet. Wave Detail: East 2 feet at
5 seconds. A slight chance of showers and thunderstorms. 
.TONIGHT...East winds 10 to 15 knots, becoming southeast around
10 knots after midnight. Seas around 2 feet. Wave Detail: East
2 feet at 5 seconds. A slight chance of showers. A slight chance
of thunderstorms after midnight. 
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. A chance of showers. A chance
of thunderstorms in the afternoon. 
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: East 2 feet at 6 seconds. A chance of
showers. A chance of thunderstorms after midnight. 
.SUNDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. Showers likely with a
chance of thunderstorms. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers
in the evening, then showers likely with a chance of
thunderstorms after midnight. 
.MONDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A
chance of thunderstorms. Showers likely, mainly in the morning. 
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of showers. 
.TUESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms. 
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. A chance of showers. 

Winds and seas higher in and near thunderstorms.

$$

Expires:202509192345;;246953
FZUS54 KHGX 191124
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
624 AM CDT Fri Sep 19 2025

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.


GMZ350-355-192345-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
624 AM CDT Fri Sep 19 2025

.REST OF TODAY...East winds around 10 knots, increasing to 10 to
15 knots late. Seas around 2 feet. Wave Detail: Southeast 2 feet
at 5 seconds. A slight chance of showers and thunderstorms late
this morning and afternoon. 
.TONIGHT...Southeast winds 10 to 15 knots, diminishing to around
10 knots after midnight. Seas around 2 feet. Wave Detail: East
2 feet at 5 seconds. 
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. A chance of showers. A chance
of thunderstorms in the afternoon. 
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A chance of
showers after midnight. 
.SUNDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds. Showers likely with a
chance of thunderstorms. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 5 seconds. A chance of showers.
A chance of thunderstorms after midnight. 
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms. 
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of showers. 
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms. 
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. A chance of showers. 

Winds and seas higher in and near thunderstorms.

$$


Expires:202509192345;;246952
FZUS54 KHGX 191124
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
624 AM CDT Fri Sep 19 2025

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.


GMZ330-192345-
Matagorda Bay-
624 AM CDT Fri Sep 19 2025

.REST OF TODAY...East to southeast 10 to 15 knots. Bay waters 
smooth, increasing to slightly choppy late. A slight chance of 
showers and thunderstorms early this afternoon.
.TONIGHT...Southeast winds 10 to 15 knots, diminishing to around
10 knots after midnight. Bay waters slightly choppy, diminishing
to smooth after midnight. A slight chance of showers in the
evening. 
.SATURDAY...East winds 5 to 10 knots, becoming southeast in the
afternoon. Bay waters smooth, increasing to smooth to slightly
choppy in the afternoon. A chance of showers. 
.SATURDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy. A chance of showers after midnight. 
.SUNDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Showers likely with a chance of thunderstorms. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers after midnight. 
.MONDAY...Southeast winds 10 to 15 knots. Bay waters slightly
choppy. A chance of showers and thunderstorms. 
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers after midnight. 
.TUESDAY...Southeast winds around 10 knots. Bay waters smooth to
slightly choppy. A chance of showers. A chance of thunderstorms
in the afternoon. 
.TUESDAY NIGHT...Southeast winds around 10 knots. Bay waters
smooth to slightly choppy. A chance of showers. 

Winds and waves higher in and near thunderstorms.

$$


Expires:202509192345;;246950
FZUS54 KHGX 191124
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
624 AM CDT Fri Sep 19 2025

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.


GMZ300-192345-
624 AM CDT Fri Sep 19 2025

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

Light to occasionally moderate east to southeast winds and 2 to 4
foot seas should continue over the next several days along with a
daily risk of isolated to widely scattered showers and 
thunderstorms. A more predominate southeast wind direction will 
emerge later this weekend into early next week along with a 
gradual increase in speeds, seas and rain chances. 

$$


Texas Coastal Marine Forecast

Expires:202509191815;;231872
FZUS54 KCRP 190543
CWFCRP

Coastal Waters Forecast for Texas
National Weather Service Corpus Christi TX
1243 AM CDT Fri Sep 19 2025

Middle Texas coastal waters from Baffin Bay to Matagorda ship
channel out to 60 nautical miles.
 
Seas are provided as a range of the average height of the highest
1/3 of the waves...along with occasional height of the average
highest 10 percent of the waves. 
 


GMZ270-275-191815-
Waters from Baffin Bay to Port Aransas from 20 to 60 NM-
Waters from Port Aransas to Matagorda Ship Channel from 20 to
60 NM-
1243 AM CDT Fri Sep 19 2025

.TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. 
.TONIGHT...East winds around 10 knots, becoming southeast after
midnight. Seas around 2 feet. Wave Detail: East 2 feet at
6 seconds. A slight chance of showers after midnight. 
.SATURDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: East 2 feet at 6 seconds. A chance of showers with a
slight chance of thunderstorms. 
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: East 2 feet at 5 seconds. A chance of
showers in the evening, then showers likely with a slight chance
of thunderstorms after midnight. 
.SUNDAY...Southeast winds around 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 5 seconds. Showers likely with a
chance of thunderstorms. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers
in the evening, then showers likely after midnight. 
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Showers likely, mainly in the morning. 
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. A chance of showers. 
.TUESDAY...Southeast winds 10 to 15 knots. Seas around 3 feet.
Showers likely, mainly in the morning. 
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. A chance of showers in the evening, then showers likely
after midnight. 

Winds and seas higher in and near thunderstorms.

$$

Expires:202509191815;;231871
FZUS54 KCRP 190543
CWFCRP

Coastal Waters Forecast for Texas
National Weather Service Corpus Christi TX
1243 AM CDT Fri Sep 19 2025

Middle Texas coastal waters from Baffin Bay to Matagorda ship
channel out to 60 nautical miles.
 
Seas are provided as a range of the average height of the highest
1/3 of the waves...along with occasional height of the average
highest 10 percent of the waves. 
 


GMZ250-191815-
Coastal waters from Baffin Bay to Port Aransas out 20 NM-
1243 AM CDT Fri Sep 19 2025

.TODAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 5 seconds. 
.TONIGHT...East winds around 10 knots, becoming southeast after
midnight. Seas around 2 feet. Wave Detail: Southeast 2 feet at
5 seconds. 
.SATURDAY...East winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 2 feet at 6 seconds. A chance of showers with a
slight chance of thunderstorms. 
.SATURDAY NIGHT...Southeast winds around 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 6 seconds. A slight
chance of showers in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight. 
.SUNDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 6 seconds. A chance of thunderstorms. Showers
likely, mainly in the morning. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Wave Detail: Southeast 3 feet at 6 seconds. A chance of showers. 
.MONDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers. 
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
3 feet. A chance of showers after midnight. 
.TUESDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers. 
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. A chance of showers. A chance of thunderstorms after
midnight. 

Winds and seas higher in and near thunderstorms.

$$


Expires:202204060415;;696753
FZUS54 KCRP 051559 AAA
CWFCRP

Coastal Waters Forecast...UPDATED
National Weather Service Corpus Christi TX
1059 AM CDT Tue Apr 5 2022

Middle Texas coastal waters from Baffin Bay to Matagorda ship channel
out to 60 nautical miles.
 
Seas are provided as a range of the average height of the highest 1/3
of the waves...along with occasional height of the average highest
10 percent of the waves. 
 

GMZ230-060415-
Bays and Waterways from Baffin Bay to Port Aransas-
1059 AM CDT Tue Apr 5 2022

.REST OF TODAY...Southeast wind 5 to 10 knots. Bays smooth. 
.TONIGHT...Southeast wind around 10 knots shifting south after
midnight. Bays slightly choppy to occasionally choppy. A slight
chance of showers and thunderstorms in the evening. Patchy fog in
the evening. Areas of fog after midnight. 
.WEDNESDAY...Southwest wind 10 to 15 knots becoming north 15 to
20 knots in the afternoon. Bays choppy to occasionally rough.
Patchy fog in the morning. 
.WEDNESDAY NIGHT...North wind 20 to 25 knots. Bays choppy to
rough. 
.THURSDAY...Northeast wind 15 to 20 knots. Bays choppy to
occasionally rough. 
.THURSDAY NIGHT...Northeast wind 10 to 15 knots. Bays slightly
choppy to occasionally choppy. 
.FRIDAY...North wind 10 to 15 knots shifting southeast in the
afternoon. Bays slightly choppy to occasionally choppy. 
.FRIDAY NIGHT...Southeast wind 15 to 20 knots becoming south
10 to 15 knots after midnight. Bays choppy. 
.SATURDAY...South wind 10 to 15 knots becoming southeast 15 to
20 knots in the afternoon. Bays choppy. 
.SATURDAY NIGHT...Southeast wind around 20 knots. Bays choppy to
occasionally rough. 

$$


Expires:202509191815;;231867
FZUS54 KCRP 190543
CWFCRP

Coastal Waters Forecast for Texas
National Weather Service Corpus Christi TX
1243 AM CDT Fri Sep 19 2025

Middle Texas coastal waters from Baffin Bay to Matagorda ship
channel out to 60 nautical miles.
 
Seas are provided as a range of the average height of the highest
1/3 of the waves...along with occasional height of the average
highest 10 percent of the waves. 
 


GMZ200-191815-
1243 AM CDT Fri Sep 19 2025

.SYNOPSIS FOR THE MIDDLE TEXAS COASTAL WATERS...

A gentle to moderate (BF 3-4) east to southeasterly breeze will 
persist through early next week. There will be a low to medium 
chance (30-60%) of showers and thunderstorms through the weekend,
with slightly higher chances next week (60-70%). 

$$


Expires:202509191830;;232755
FZUS54 KBRO 190602
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
102 AM CDT Fri Sep 19 2025

Lower Texas coastal waters from Baffin Bay to the mouth of the
Rio Grande out 60 NM. 

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.


GMZ100-191830-
102 AM CDT Fri Sep 19 2025

.SYNOPSIS...Light to moderate onshore flow and slight seas will 
persist through the weekend along with daily chances of isolated
to scattered showers and thunderstorms. Brief periods of Small
Craft Exercise Caution conditions are possible each day, as well
as elevated winds and seas under any showers or storms. By early
next week, winds shift to a more southeasterly flow increasing to
moderate speeds, and elevated daily chances of showers and 
storms.

$$


Expires:202509191830;;232757
FZUS54 KBRO 190602
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
102 AM CDT Fri Sep 19 2025

Lower Texas coastal waters from Baffin Bay to the mouth of the
Rio Grande out 60 NM. 

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.


GMZ150-155-191830-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
102 AM CDT Fri Sep 19 2025

.TODAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 5 seconds. A slight chance of thunderstorms. A
chance of showers early this morning, then a slight chance of
showers this afternoon. 
.TONIGHT...East winds 5 to 10 knots, becoming southeast after
midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at
5 seconds. A slight chance of showers and thunderstorms early in
the morning. 
.SATURDAY...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 7 seconds. A chance of showers with a
slight chance of thunderstorms. 
.SATURDAY NIGHT...Southeast winds around 10 knots, becoming 5 to
10 knots early in the morning. Seas 2 to 3 feet. Wave Detail:
East 2 feet at 6 seconds. A slight chance of thunderstorms. A
chance of showers in the evening, then showers likely after
midnight. 
.SUNDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 6 seconds. Showers likely with a chance of
thunderstorms. 
.SUNDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: East 3 feet at 6 seconds. A chance of
showers. A chance of thunderstorms early in the evening, then a
slight chance of thunderstorms in the late evening and overnight.
.MONDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms. 
.MONDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to 4 feet.
A chance of showers. A slight chance of thunderstorms early in
the evening. A slight chance of thunderstorms after midnight. 
.TUESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms. 
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. A chance of showers with a slight chance of thunderstorms
in the evening, then showers likely with a chance of
thunderstorms after midnight. 

Winds and seas higher in and near thunderstorms.

$$