FZUS54 KBRO 270618
CWFBRO
Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1218 AM CST Sat Dec 27 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.
GMZ100-271915-
1218 AM CST Sat Dec 27 2025
.SYNOPSIS...Light to moderate southerly winds and moderate seas
will continue through the weekend. Patchy fog is possible at times.
Late Sunday night or early Monday morning, a strong cold front
will sweep through the region. Showers and thunderstorms along
with hazardous marine/coastal conditions are expected to develop
amid strong northerly winds.
$$
GMZ130-132-135-271915-
Laguna Madre from the Port of Brownsville to the Arroyo Colorado-
Laguna Madre from the Arroyo Colorado To 5 NM north of Port
Mansfield TX-
Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX-
1218 AM CST Sat Dec 27 2025
.TODAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay. Patchy fog early this morning.
.TONIGHT...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.SUNDAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots in the late evening and early morning, then
becoming east 10 to 15 knots early in the morning. A moderate
chop on the bay, diminishing to light chop in the late evening
and early morning, then increasing to a moderate chop early in
the morning. Showers likely with a slight chance of thunderstorms
after midnight. Showers likely with a chance of thunderstorms
early in the morning.
.MONDAY...North winds 20 to 25 knots with gusts up to 35 knots.
Rough on the bay. A slight chance of thunderstorms early in the
morning. A chance of showers in the morning, then a slight chance
of showers in the afternoon.
.MONDAY NIGHT...North winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots early in the morning.
Rough on the bay, diminishing to choppy early in the morning.
.TUESDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Choppy on the bay, diminishing to a
moderate chop in the afternoon.
.TUESDAY NIGHT...North winds 5 to 10 knots. Light chop on the
bay.
.WEDNESDAY...North winds around 5 knots, becoming east in the
afternoon. Smooth on the bay.
.WEDNESDAY NIGHT...Southeast winds around 5 knots, becoming south
after midnight. Smooth on the bay.
Winds and waves higher in and near thunderstorms.
$$
GMZ150-155-271915-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1218 AM CST Sat Dec 27 2025
.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.TONIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots in the late evening and early morning, then
becoming east 15 to 20 knots early in the morning. Seas 3 to
4 feet. Wave Detail: Southeast 3 feet at 6 seconds. Showers
likely with a slight chance of thunderstorms after midnight.
Showers likely with a chance of thunderstorms early in the
morning.
.MONDAY...North winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, building to 8 to 13 feet, occasionally to 17 feet in the
afternoon. Wave Detail: Northeast 6 feet at 6 seconds and
northeast 3 feet at 3 seconds, becoming northeast 11 feet at
8 seconds. A slight chance of thunderstorms early in the morning.
A chance of showers in the morning, then a slight chance of
showers in the afternoon.
.MONDAY NIGHT...North winds 20 to 25 knots. Seas 9 to 12 feet,
occasionally to 15 feet. Wave Detail: Northeast 12 feet at
8 seconds and north 3 feet at 4 seconds.
.TUESDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots late in the afternoon. Seas 7 to 10 feet, occasionally
to 13 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in
the afternoon.
.TUESDAY NIGHT...North winds 5 to 10 knots. Seas 3 to 5 feet.
.WEDNESDAY...Northeast winds around 5 knots, becoming east in the
afternoon. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ170-175-271915-
Gulf waters from Port Mansfield to the Rio Grande extending from
20 to 60 nm-
Gulf waters from Baffin Bay to Port Mansfield extending from
20 to 60 nm-
1218 AM CST Sat Dec 27 2025
.TODAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.TONIGHT...Southeast winds around 15 knots. Seas 3 to 5 feet.
Wave Detail: Southeast 4 feet at 6 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming southeast
10 to 15 knots early in the morning. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds. Showers likely with a
chance of thunderstorms after midnight.
.MONDAY...North winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, building to 9 to 12 feet, occasionally to 15 feet in the
afternoon. Wave Detail: East 6 feet at 6 seconds and northeast
2 feet at 3 seconds, becoming north 12 feet at 8 seconds. A
slight chance of thunderstorms early in the morning. A chance of
showers.
.MONDAY NIGHT...North winds 20 to 25 knots with gusts up to
30 knots. Seas 8 to 13 feet, occasionally to 17 feet. Wave
Detail: North 12 feet at 8 seconds and north 8 feet at 8 seconds.
.TUESDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 8 to 11 feet, occasionally to
14 feet, subsiding to 6 to 8 feet, occasionally to 10 feet in the
afternoon.
.TUESDAY NIGHT...North winds 10 to 15 knots, becoming northeast
5 to 10 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet, subsiding to 3 to 4 feet after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
$$
CWFBRO
Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1218 AM CST Sat Dec 27 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.
GMZ100-271915-
1218 AM CST Sat Dec 27 2025
.SYNOPSIS...Light to moderate southerly winds and moderate seas
will continue through the weekend. Patchy fog is possible at times.
Late Sunday night or early Monday morning, a strong cold front
will sweep through the region. Showers and thunderstorms along
with hazardous marine/coastal conditions are expected to develop
amid strong northerly winds.
$$
GMZ130-132-135-271915-
Laguna Madre from the Port of Brownsville to the Arroyo Colorado-
Laguna Madre from the Arroyo Colorado To 5 NM north of Port
Mansfield TX-
Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX-
1218 AM CST Sat Dec 27 2025
.TODAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay. Patchy fog early this morning.
.TONIGHT...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.SUNDAY...Southeast winds 10 to 15 knots. A moderate chop on the
bay.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots in the late evening and early morning, then
becoming east 10 to 15 knots early in the morning. A moderate
chop on the bay, diminishing to light chop in the late evening
and early morning, then increasing to a moderate chop early in
the morning. Showers likely with a slight chance of thunderstorms
after midnight. Showers likely with a chance of thunderstorms
early in the morning.
.MONDAY...North winds 20 to 25 knots with gusts up to 35 knots.
Rough on the bay. A slight chance of thunderstorms early in the
morning. A chance of showers in the morning, then a slight chance
of showers in the afternoon.
.MONDAY NIGHT...North winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots early in the morning.
Rough on the bay, diminishing to choppy early in the morning.
.TUESDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Choppy on the bay, diminishing to a
moderate chop in the afternoon.
.TUESDAY NIGHT...North winds 5 to 10 knots. Light chop on the
bay.
.WEDNESDAY...North winds around 5 knots, becoming east in the
afternoon. Smooth on the bay.
.WEDNESDAY NIGHT...Southeast winds around 5 knots, becoming south
after midnight. Smooth on the bay.
Winds and waves higher in and near thunderstorms.
$$
GMZ150-155-271915-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1218 AM CST Sat Dec 27 2025
.TODAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.TONIGHT...Southeast winds around 15 knots. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 6 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, diminishing to
5 to 10 knots in the late evening and early morning, then
becoming east 15 to 20 knots early in the morning. Seas 3 to
4 feet. Wave Detail: Southeast 3 feet at 6 seconds. Showers
likely with a slight chance of thunderstorms after midnight.
Showers likely with a chance of thunderstorms early in the
morning.
.MONDAY...North winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, building to 8 to 13 feet, occasionally to 17 feet in the
afternoon. Wave Detail: Northeast 6 feet at 6 seconds and
northeast 3 feet at 3 seconds, becoming northeast 11 feet at
8 seconds. A slight chance of thunderstorms early in the morning.
A chance of showers in the morning, then a slight chance of
showers in the afternoon.
.MONDAY NIGHT...North winds 20 to 25 knots. Seas 9 to 12 feet,
occasionally to 15 feet. Wave Detail: Northeast 12 feet at
8 seconds and north 3 feet at 4 seconds.
.TUESDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots late in the afternoon. Seas 7 to 10 feet, occasionally
to 13 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in
the afternoon.
.TUESDAY NIGHT...North winds 5 to 10 knots. Seas 3 to 5 feet.
.WEDNESDAY...Northeast winds around 5 knots, becoming east in the
afternoon. Seas 2 to 3 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
$$
GMZ170-175-271915-
Gulf waters from Port Mansfield to the Rio Grande extending from
20 to 60 nm-
Gulf waters from Baffin Bay to Port Mansfield extending from
20 to 60 nm-
1218 AM CST Sat Dec 27 2025
.TODAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds.
.TONIGHT...Southeast winds around 15 knots. Seas 3 to 5 feet.
Wave Detail: Southeast 4 feet at 6 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds.
.SUNDAY NIGHT...South winds 5 to 10 knots, becoming southeast
10 to 15 knots early in the morning. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 6 seconds. Showers likely with a
chance of thunderstorms after midnight.
.MONDAY...North winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, building to 9 to 12 feet, occasionally to 15 feet in the
afternoon. Wave Detail: East 6 feet at 6 seconds and northeast
2 feet at 3 seconds, becoming north 12 feet at 8 seconds. A
slight chance of thunderstorms early in the morning. A chance of
showers.
.MONDAY NIGHT...North winds 20 to 25 knots with gusts up to
30 knots. Seas 8 to 13 feet, occasionally to 17 feet. Wave
Detail: North 12 feet at 8 seconds and north 8 feet at 8 seconds.
.TUESDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 8 to 11 feet, occasionally to
14 feet, subsiding to 6 to 8 feet, occasionally to 10 feet in the
afternoon.
.TUESDAY NIGHT...North winds 10 to 15 knots, becoming northeast
5 to 10 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet, subsiding to 3 to 4 feet after midnight.
.WEDNESDAY...Northeast winds 5 to 10 knots, becoming east in the
afternoon. Seas 2 to 4 feet.
.WEDNESDAY NIGHT...Southeast winds 5 to 10 knots, becoming south
after midnight. Seas 2 to 3 feet.
Winds and seas higher in and near thunderstorms.
$$