FZUS54 KHGX 211220
CWFHGX
Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
620 AM CST Sun Dec 21 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.
GMZ300-220115-
620 AM CST Sun Dec 21 2025
.Synopsis For High Island to the Matagorda Ship Channel Out 60 NM
including Galveston and Matagorda Bays.
Sea fog is occurring on area bays and nearshore Gulf waters,
becoming dense in patches - particularly around Galveston Bay.
The potential for overnight and morning fog will need to be
monitored each night into early next week. Beyond that,
conditions will be warm and relatively calm with light southerly
winds and seas 3 feet or less.
$$
GMZ335-220115-
Galveston Bay-
620 AM CST Sun Dec 21 2025
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...
.TODAY...South winds around 5 knots. Bay waters smooth. A slight
chance of showers this morning. Areas of dense fog early this
morning. Patchy fog late this morning and afternoon.
.TONIGHT...Southeast winds around 5 knots. Bay waters smooth.
Patchy fog in the evening, then areas of dense fog after
midnight. A slight chance of showers after midnight.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning. Areas of dense fog in the
morning, then patchy fog in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
Patchy fog.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Areas of fog in the morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Areas of fog after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Areas of fog in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Patchy fog after midnight.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth. Patchy
fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
$$
GMZ330-220115-
Matagorda Bay-
620 AM CST Sun Dec 21 2025
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...
.TODAY...Southwest winds around 5 knots. Bay waters smooth. Areas
of dense fog early this morning, then patchy fog late this
morning and afternoon.
.TONIGHT...East winds around 5 knots. Bay waters smooth. Patchy
fog.
.MONDAY...East winds 5 to 10 knots. Bay waters smooth. Patchy
fog.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
Patchy fog.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Patchy fog in the morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Patchy fog.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Patchy fog in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Patchy fog.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth. Patchy
fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
$$
GMZ350-355-220115-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
620 AM CST Sun Dec 21 2025
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...
.TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds. A slight chance of showers
and thunderstorms. Patchy dense fog.
.TONIGHT...Southeast winds around 5 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of
showers. Patchy fog.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds. Patchy fog.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds. Patchy fog.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Patchy fog after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ370-375-220115-
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-
620 AM CST Sun Dec 21 2025
.TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. Patchy fog. A slight
chance of showers and thunderstorms late this morning and
afternoon.
.TONIGHT...Southeast winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds. A slight chance of showers.
Patchy fog.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds. Patchy fog in the morning.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 5 seconds. Patchy fog.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.TUESDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to
4 feet.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet.
Winds and seas higher in and near thunderstorms.
$$
CWFHGX
Coastal Waters Forecast for Texas
National Weather Service Houston/Galveston TX
620 AM CST Sun Dec 21 2025
Upper Texas coastal waters from High Island to the Matagorda Ship
Channel out 60 nautical miles including Galveston and Matagorda
Bays.
Seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the
average highest 10 percent of the waves.
GMZ300-220115-
620 AM CST Sun Dec 21 2025
.Synopsis For High Island to the Matagorda Ship Channel Out 60 NM
including Galveston and Matagorda Bays.
Sea fog is occurring on area bays and nearshore Gulf waters,
becoming dense in patches - particularly around Galveston Bay.
The potential for overnight and morning fog will need to be
monitored each night into early next week. Beyond that,
conditions will be warm and relatively calm with light southerly
winds and seas 3 feet or less.
$$
GMZ335-220115-
Galveston Bay-
620 AM CST Sun Dec 21 2025
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...
.TODAY...South winds around 5 knots. Bay waters smooth. A slight
chance of showers this morning. Areas of dense fog early this
morning. Patchy fog late this morning and afternoon.
.TONIGHT...Southeast winds around 5 knots. Bay waters smooth.
Patchy fog in the evening, then areas of dense fog after
midnight. A slight chance of showers after midnight.
.MONDAY...Southeast winds 5 to 10 knots. Bay waters smooth. A
chance of showers in the morning. Areas of dense fog in the
morning, then patchy fog in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
Patchy fog.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Areas of fog in the morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Areas of fog after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Areas of fog in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Patchy fog after midnight.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth. Patchy
fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
$$
GMZ330-220115-
Matagorda Bay-
620 AM CST Sun Dec 21 2025
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...
.TODAY...Southwest winds around 5 knots. Bay waters smooth. Areas
of dense fog early this morning, then patchy fog late this
morning and afternoon.
.TONIGHT...East winds around 5 knots. Bay waters smooth. Patchy
fog.
.MONDAY...East winds 5 to 10 knots. Bay waters smooth. Patchy
fog.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth.
Patchy fog.
.TUESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Patchy fog in the morning.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Patchy fog.
.WEDNESDAY...Southeast winds 5 to 10 knots. Bay waters smooth.
Patchy fog in the morning.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters
smooth. Patchy fog.
.THURSDAY...South winds 5 to 10 knots. Bay waters smooth. Patchy
fog in the morning.
.THURSDAY NIGHT...South winds 5 to 10 knots. Bay waters smooth.
$$
GMZ350-355-220115-
Coastal waters from Freeport to Matagorda Ship Channel TX out
20 NM-Coastal waters from High Island to Freeport TX out 20 NM-
620 AM CST Sun Dec 21 2025
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...
.TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds. A slight chance of showers
and thunderstorms. Patchy dense fog.
.TONIGHT...Southeast winds around 5 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 6 seconds. A slight chance of
showers. Patchy fog.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds. Patchy fog.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 4 seconds. Patchy fog.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 2 feet at 6 seconds. Patchy fog after midnight.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to
3 feet.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ370-375-220115-
Waters from Freeport to Matagorda Ship Channel TX from 20 to
60 NM-Waters from High Island to Freeport TX from 20 to 60 NM-
620 AM CST Sun Dec 21 2025
.TODAY...South winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds. Patchy fog. A slight
chance of showers and thunderstorms late this morning and
afternoon.
.TONIGHT...Southeast winds around 5 knots. Seas 2 to 3 feet. Wave
Detail: South 2 feet at 6 seconds. A slight chance of showers.
Patchy fog.
.MONDAY...Southeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Southeast 1 foot at 5 seconds. Patchy fog in the morning.
.MONDAY NIGHT...Southeast winds around 10 knots. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 5 seconds. Patchy fog.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.TUESDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.WEDNESDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to
4 feet.
.THURSDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
.THURSDAY NIGHT...South winds 5 to 10 knots. Seas 3 to 4 feet.
Winds and seas higher in and near thunderstorms.
$$