Texas Coastal Marine Forecast

Expires:202504190830;;044979
FZUS54 KLCH 181926
CWFLCH

Coastal Waters Forecast
National Weather Service Lake Charles LA
226 PM CDT Fri Apr 18 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.


GMZ400-190830-
226 PM CDT Fri Apr 18 2025

.SYNOPSIS...
A tight gradient between high pressure to the east and low
pressure over the Plains is bringing about a prolonged period of 
long fetch across the northern Gulf. This modest southerly flow
will continue to result in elevated seas into early Monday. A 
Small Craft Advisory will be in effect for all 0 to 60 nm waters
from late tonight through early Sunday morning. The next chance 
of rainfall comes Sunday when a frontal boundary nears the region,
with scattered showers and thunderstorms expected Sunday through 
Monday.

$$


Expires:202504190815;;044475
FZUS54 KHGX 181915
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
215 PM CDT Fri Apr 18 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.


GMZ370-375-190815-
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-
215 PM CDT Fri Apr 18 2025

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

.THIS AFTERNOON...South winds around 20 knots. Seas 6 to 8 feet, 
occasionally to 10 feet. Wave Detail: South 6 feet at 7 seconds. 
.TONIGHT...Southeast winds around 20 knots. Seas 6 to 9 feet, 
occasionally to 11 feet. Wave Detail: South 6 feet at 7 seconds. 
.SATURDAY...Southeast winds around 20 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: Southeast 7 feet at
8 seconds. 
.SATURDAY NIGHT...Southeast winds around 20 knots. Seas 8 to
9 feet, occasionally to 11 feet. Wave Detail: Southeast 8 feet at
8 seconds. 
.SUNDAY...Southeast winds 15 to 20 knots. Seas 6 to 9 feet,
occasionally to 11 feet, subsiding to 6 to 7 feet, occasionally
to 9 feet in the afternoon. Wave Detail: Southeast 8 feet at
8 seconds, becoming southeast 7 feet at 8 seconds. A chance of
showers and thunderstorms in the afternoon. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: Southeast 6 feet at
8 seconds. A chance of showers and thunderstorms. 
.MONDAY...Southeast winds 5 to 10 knots. Seas 4 to 6 feet,
occasionally to 8 feet. A chance of showers in the morning. 
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 4 to
5 feet. 
.TUESDAY...Southeast winds around 10 knots. Seas 4 to 5 feet. A
chance of showers in the morning. A chance of thunderstorms. 
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. A chance of showers and thunderstorms after midnight. 

Winds and seas higher in and near thunderstorms.

$$

Expires:202504190815;;044474
FZUS54 KHGX 181915
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
215 PM CDT Fri Apr 18 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.


GMZ350-355-190815-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
215 PM CDT Fri Apr 18 2025

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

.THIS AFTERNOON...South winds around 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: South 5 feet at 7 seconds. 
.TONIGHT...Southeast winds around 20 knots. Seas 5 to 6 feet, 
occasionally to 8 feet. Wave Detail: South 6 feet at 7 seconds. 
.SATURDAY...Southeast winds around 20 knots. Seas 5 to 7 feet, 
occasionally to 9 feet. Wave Detail: Southeast 6 feet at 7 
seconds. 
.SATURDAY NIGHT...Southeast winds around 20 knots. Seas 6 to
8 feet, occasionally to 10 feet. Wave Detail: Southeast 6 feet at
8 seconds. 
.SUNDAY...Southeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A chance of showers and thunderstorms in
the afternoon. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 5 feet at
8 seconds. A chance of showers and thunderstorms. 
.MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 5 feet. A
chance of showers in the morning. 
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 3 to
4 feet. 
.TUESDAY...Southeast winds 10 to 15 knots. Seas 3 to 4 feet. A
chance of showers and thunderstorms. 
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. A chance of showers and thunderstorms after midnight. 

Winds and seas higher in and near thunderstorms.

$$


Expires:202504190815;;044473
FZUS54 KHGX 181915
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
215 PM CDT Fri Apr 18 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.


GMZ330-190815-
Matagorda Bay-
215 PM CDT Fri Apr 18 2025

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

.THIS AFTERNOON...South winds 15 to 20 knots. Bay waters choppy. 
.TONIGHT...Southeast winds around 20 knots. Bay waters choppy. 
.SATURDAY...Southeast winds around 20 knots. Bay waters choppy. 
.SATURDAY NIGHT...Southeast winds around 20 knots. Bay waters
choppy. 
.SUNDAY...Southeast winds 15 to 20 knots. Bay waters choppy. A
chance of showers and thunderstorms in the afternoon. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
around 10 knots after midnight. Bay waters slightly choppy,
easing to smooth after midnight. A chance of showers and
thunderstorms. 
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning. 
.MONDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth. 
.TUESDAY...Southeast winds around 10 knots, rising to 10 to
15 knots in the afternoon. Bay waters smooth, rising to slightly
choppy in the afternoon. A chance of showers and thunderstorms. 
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Bay waters
slightly choppy. A chance of showers and thunderstorms after
midnight. 

Winds and waves higher in and near thunderstorms.

$$


Expires:202504190815;;044471
FZUS54 KHGX 181915
CWFHGX

Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
215 PM CDT Fri Apr 18 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.


GMZ300-190815-
Synopsis for High Island to the Matagorda Ship Channel out
60 nautical miles including Galveston and Matagorda Bays
215 PM CDT Fri Apr 18 2025

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

A long fetch of moderate south and southeast winds will continue 
across the western Gulf through the weekend. This will drive up 
winds and seas along the upper Texas coast resulting in periods of
Small Craft Advisory conditions. Rip current risk is expected to 
be high as well through the weekend. Decreasing winds and seas 
are expected late Sunday into Monday, before increasing somewhat 
by the middle of the week. Shower and thunderstorm chances will 
increase Sunday and continue into next week as increased Gulf 
moisture interacts with a series of upper level disturbances 
passing overhead.

$$


Texas Coastal Marine Forecast

Expires:202504190815;;045341
FZUS54 KCRP 181938
CWFCRP

Coastal Waters Forecast for Texas
National Weather Service Corpus Christi TX
238 PM CDT Fri Apr 18 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. 
 


GMZ270-275-190815-
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-
238 PM CDT Fri Apr 18 2025

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

.TONIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail:
Southeast 7 feet at 8 seconds. 
.SATURDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail:
Southeast 8 feet at 8 seconds. 
.SATURDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 7 to 8 feet, occasionally to 10 feet. Wave Detail:
Southeast 8 feet at 9 seconds. 
.SUNDAY...Southeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 6 to 8 feet, occasionally to
10 feet. Wave Detail: Southeast 8 feet at 8 seconds. A slight
chance of thunderstorms. A slight chance of showers in the
morning, then a chance of showers in the afternoon. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 6 to 7 feet,
occasionally to 9 feet. Wave Detail: Southeast 7 feet at
9 seconds. A chance of showers. A slight chance of thunderstorms
in the evening, then a chance of thunderstorms after midnight. 
.MONDAY...Southeast winds 5 to 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 6 feet at
9 seconds. A chance of showers and thunderstorms in the morning. 
.MONDAY NIGHT...East winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. 
.TUESDAY...Southeast winds around 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. A chance of showers and thunderstorms in
the morning. 
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet, occasionally to 6 feet. A chance of showers after
midnight. 
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet,
occasionally to 6 feet. A chance of showers and thunderstorms in
the morning. 
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet, occasionally to 6 feet. 

Winds and seas higher in and near thunderstorms.

$$

Expires:202504190815;;045340
FZUS54 KCRP 181938
CWFCRP

Coastal Waters Forecast for Texas
National Weather Service Corpus Christi TX
238 PM CDT Fri Apr 18 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. 
 


GMZ250-190815-
Coastal waters from Baffin Bay to Port Aransas out 20 NM-
238 PM CDT Fri Apr 18 2025

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

.TONIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail:
Southeast 6 feet at 7 seconds. 
.SATURDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
Southeast 6 feet at 8 seconds. 
.SATURDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail:
Southeast 7 feet at 8 seconds. 
.SUNDAY...Southeast winds 15 to 20 knots, diminishing to around
10 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Southeast 7 feet at 8 seconds. A slight
chance of showers and thunderstorms in the morning, then a chance
of showers and thunderstorms in the afternoon. 
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: Southeast 6 feet at
9 seconds. A chance of showers and thunderstorms. 
.MONDAY...Southeast winds 5 to 10 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Wave Detail: Southeast 5 feet at
9 seconds. A chance of showers and thunderstorms in the morning. 
.MONDAY NIGHT...East winds 5 to 10 knots. Seas around 4 feet,
occasionally to 5 feet. 
.TUESDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Seas around 4 feet, occasionally to
5 feet. A chance of thunderstorms in the morning. A chance of
showers. 
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
4 feet, occasionally to 5 feet. A chance of showers and
thunderstorms. 
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas around 4 feet,
occasionally to 5 feet. A chance of thunderstorms in the morning.
A chance of showers. 
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet, occasionally to 6 feet. 

Winds and seas higher in and near thunderstorms.

$$


Expires:202204060415;;857702
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:202504190815;;045336
FZUS54 KCRP 181938
CWFCRP

Coastal Waters Forecast for Texas
National Weather Service Corpus Christi TX
238 PM CDT Fri Apr 18 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. 
 


GMZ200-190815-
238 PM CDT Fri Apr 18 2025

.SYNOPSIS FOR THE MIDDLE TEXAS COASTAL WATERS...

Tonight, onshore flow subsides to a moderate to fresh (BF 4-5) 
breeze and seas 5 to 7 feet. Onshore flow increases back to a 
fresh to strong breeze (BF 5-6) Saturday with seas remaining at 
5-7 ft. A moderate breeze (BF 4) will continue Sunday decreasing 
to light to gentle (BF 2-3) Monday and Monday night before 
increasing back to moderate levels (BF 4) Tuesday. Low to medium 
(25-50%) rain chances are expected Sunday through Wednesday.

$$


Expires:202504190315;;047844
FZUS54 KBRO 182018
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
318 PM CDT Fri Apr 18 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.


GMZ100-190315-
318 PM CDT Fri Apr 18 2025

.SYNOPSIS...A Small Craft Advisory continues for all Lower Texas
coastal waters (0-60 nm) through Saturday evening as fresh to 
strong south-southeasterly winds, with strong to near gale gusts,
and moderate seas continue as a tight pressure gradient remains 
over the Lower Texas coastal waters. Conditions improve on Sunday 
as the gradient relaxes, with gentle to moderate southeasterly 
winds, becoming easterly on Monday. Moderate onshore winds and
and a moderate sea state can be expected next Tuesday and for the
middle portion of next week. The approach and stall of a frontal 
boundary will bring a chance of showers and thunderstorms Sunday 
and much of next week.

$$


Expires:202504190315;;047846
FZUS54 KBRO 182018
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
318 PM CDT Fri Apr 18 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.


GMZ150-155-190315-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
318 PM CDT Fri Apr 18 2025

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

.TONIGHT...Southeast winds 15 to 20 knots with gusts up to 25 
knots, increasing 20 to 25 knots with higher gusts after 
midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: 
Southeast 6 feet at 7 seconds. 
.SATURDAY...Southeast winds 15 to 20 knots. Gusts to 30 knots
late in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet.
Wave Detail: Southeast 6 feet at 8 seconds. 
.SATURDAY NIGHT...Southeast winds 15 to 20 knots. Gusts to
30 knots early in the evening. Seas 6 to 8 feet, occasionally to
10 feet. Wave Detail: Southeast 7 feet at 8 seconds. 
.SUNDAY...Southeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: Southeast 7 feet at 8 seconds. A slight
chance of showers in the morning. A slight chance of
thunderstorms in the afternoon. A chance of showers in the
afternoon. 
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots early in the morning. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 6 feet at 9 seconds. A
slight chance of thunderstorms in the evening. A chance of
showers. A chance of thunderstorms after midnight. 
.MONDAY...Southeast winds 5 to 10 knots, becoming east late in
the afternoon. Seas 4 to 5 feet. Wave Detail: East 5 feet at
9 seconds. A slight chance of thunderstorms. A chance of showers
until late afternoon, then a slight chance of showers late in the
afternoon. 
.MONDAY NIGHT...East winds around 10 knots, becoming southeast
early in the morning. Seas 4 to 5 feet. 
.TUESDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. A
slight chance of thunderstorms. A chance of showers until late
afternoon, then a slight chance of showers late in the afternoon.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. A slight chance of thunderstorms. A slight chance of
showers early in the evening, then a chance of showers in the
late evening and overnight. 
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 4 to 5 feet. A
slight chance of showers and thunderstorms. 
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 4 to
5 feet. A slight chance of showers and thunderstorms early in the
evening. 

Winds and seas higher in and near thunderstorms.

$$