142
FZUS54 KBRO 121522
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
922 AM CST Wed Feb 12 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.

GMZ100-130430-
922 AM CST Wed Feb 12 2025

.SYNOPSIS...Favorable wind and sea conditions will prevail
through this evening. A cold front will move through the Lower
Texas Coastal waters late tonight, resulting in strong northerly
winds. Building seas will develop in the wake of the front, and
Small Craft Advisories may be needed. Hazardous marine conditions
will prevail on Thursday. Marine conditions will briefly improve
Friday before becoming adverse again during the weekend as a
second front passes through the area Saturday night.

$$

GMZ130-132-135-130430-
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-
922 AM CST Wed Feb 12 2025

.REST OF TODAY...South winds 5 to 10 knots, becoming east late
this afternoon. Light chop on the bay.
.TONIGHT...East winds 5 to 10 knots, becoming northeast 10 to
15 knots early in the morning. Light chop on the bay, increasing
to a moderate chop early in the morning. Patchy fog in the
evening, then widespread fog after midnight. Patchy fog early in
the morning.
.THURSDAY...North winds 15 to 20 knots, increasing to 20 to
25 knots with gusts up to 30 knots in the afternoon. Choppy on
the bay, increasing to rough in the afternoon. A slight chance of
showers early in the morning, then a chance of showers in the
afternoon.
.THURSDAY NIGHT...North winds 20 to 25 knots, diminishing to
10 to 15 knots. Rough on the bay, diminishing to a moderate chop.
A chance of showers. A slight chance of thunderstorms late in the
evening.
.FRIDAY...North winds 10 to 15 knots, diminishing to 5 to
10 knots late in the afternoon. A moderate chop on the bay,
diminishing to light chop late in the afternoon. A slight chance
of showers in the morning.
.FRIDAY NIGHT...North winds around 5 knots, becoming east late in
the evening, then becoming south after midnight, increasing to
10 to 15 knots early in the morning. Smooth on the bay,
increasing to light chop after midnight, then increasing to a
moderate chop early in the morning.
.SATURDAY...South winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon, then diminishing to 10 to 15 knots
late in the afternoon. A moderate chop on the bay, increasing to
choppy in the afternoon, then diminishing to a moderate chop late
in the afternoon.
.SATURDAY NIGHT...South winds around 10 knots, becoming southwest
late in the evening, then becoming north after midnight,
increasing to 15 to 20 knots early in the morning. Light chop on
the bay, increasing to choppy early in the morning.
.SUNDAY...North winds 15 to 20 knots. Choppy on the bay.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots, diminishing to
5 to 10 knots after midnight. Light chop on the bay.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-130430-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
922 AM CST Wed Feb 12 2025

.REST OF TODAY...South winds 5 to 10 knots, becoming southeast
late this afternoon. Seas 3 to 4 feet. Wave Detail: Southeast
4 feet at 7 seconds.
.TONIGHT...East winds 5 to 10 knots, becoming northeast 10 to
15 knots early in the morning. Seas 3 to 4 feet. Wave Detail:
Southeast 4 feet at 7 seconds and northeast 3 feet at 3 seconds.
Widespread fog until early morning. Patchy fog early in the
morning.
.THURSDAY...Northeast winds 15 to 20 knots, becoming north 20 to
25 knots with gusts up to 30 knots in the afternoon. Seas 4 to
6 feet, occasionally to 8 feet, building to 6 to 9 feet,
occasionally to 11 feet in the afternoon. Wave Detail: East
6 feet at 7 seconds and northeast 5 feet at 4 seconds, becoming
northeast 9 feet at 8 seconds. A chance of showers. A slight
chance of thunderstorms early in the afternoon. A chance of
thunderstorms late in the afternoon.
.THURSDAY NIGHT...Northeast winds 20 to 25 knots with gusts up to
30 knots, becoming north 15 to 20 knots in the late evening and
overnight. Seas 6 to 9 feet, occasionally to 11 feet. Wave
Detail: Northeast 9 feet at 8 seconds and north 2 feet at
4 seconds. A slight chance of thunderstorms until early morning.
A chance of showers.
.FRIDAY...North winds 10 to 15 knots, becoming northwest 5 to
10 knots late in the afternoon. Seas 6 to 8 feet, occasionally to
10 feet. Wave Detail: East 7 feet at 9 seconds. A chance of
showers with a slight chance of thunderstorms early in the
morning, then a chance of showers late in the morning.
.FRIDAY NIGHT...North winds around 5 knots, becoming east late in
the evening, then becoming south after midnight, increasing to
10 to 15 knots early in the morning. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: East 5 feet at 8 seconds.
.SATURDAY...South winds 15 to 20 knots, diminishing to 10 to
15 knots late in the afternoon. Seas 4 to 5 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots, becoming southwest
late in the evening, then becoming northwest after midnight,
becoming north 15 to 20 knots early in the morning. Seas 3 to
5 feet.
.SUNDAY...North winds 20 to 25 knots, diminishing to 15 to
20 knots late in the afternoon. Seas 6 to 8 feet, occasionally to
10 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to 6 feet,
occasionally to 8 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-130430-
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-
922 AM CST Wed Feb 12 2025

.REST OF TODAY...South winds 10 to 15 knots, diminishing to 5 to
10 knots late this afternoon. Seas 4 to 5 feet. Wave Detail:
Southeast 4 feet at 7 seconds.
.TONIGHT...East winds 5 to 10 knots, becoming northeast 10 to
15 knots after midnight. Seas 3 to 5 feet. Wave Detail: Southeast
4 feet at 7 seconds. Patchy fog.
.THURSDAY...Northeast winds 15 to 20 knots, increasing to 25 to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet, building to
7 to 10 feet, occasionally to 13 feet in the afternoon. Wave
Detail: East 7 feet at 6 seconds, becoming northeast 10 feet at
8 seconds. A chance of showers. A slight chance of thunderstorms
early in the afternoon. A chance of thunderstorms late in the
afternoon.
.THURSDAY NIGHT...Northeast winds 25 to 30 knots, diminishing to
15 to 20 knots. Seas 9 to 12 feet, occasionally to 15 feet. Wave
Detail: Northeast 12 feet at 9 seconds. Showers likely. A chance
of thunderstorms early in the evening, then a slight chance of
thunderstorms in the late evening and overnight.
.FRIDAY...Northeast winds 10 to 15 knots, becoming north 5 to
10 knots late in the afternoon. Seas 6 to 9 feet, occasionally to
11 feet. Wave Detail: Northeast 8 feet at 9 seconds. A chance of
showers in the morning. A slight chance of thunderstorms. A
slight chance of showers in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots, becoming south
10 to 15 knots in the late evening and early morning, then
increasing to 15 to 20 knots early in the morning. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: East 6 feet at
8 seconds.
.SATURDAY...South winds 15 to 20 knots, diminishing to 10 to
15 knots late in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet.
.SATURDAY NIGHT...South winds 10 to 15 knots, becoming southwest
late in the evening, then becoming northwest after midnight,
becoming north 15 to 20 knots early in the morning. Seas 3 to
5 feet. A slight chance of showers after midnight.
.SUNDAY...North winds 20 to 25 knots. Seas 7 to 10 feet,
occasionally to 13 feet.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas 6 to 8 feet, occasionally to
10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet after
midnight.

Winds and seas higher in and near thunderstorms.

$$