Coastal Waters Forecast
Issued by NWS Brownsville, TX

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463
FZUS54 KBRO 211527
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
927 AM CST Fri Feb 21 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.

GMZ100-220415-
927 AM CST Fri Feb 21 2025

.SYNOPSIS...Adverse to hazardous marine conditions are
anticipated for a majority of the Lower Texas Coastal waters
through the weekend courtesy of the gradual development of low
pressure. Improved winds and seas will then occur for the new work
week as the coastal low moves east and high pressure becomes more
dominant over the western Gulf.

$$

GMZ130-132-135-220415-
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-
927 AM CST Fri Feb 21 2025

.REST OF TODAY...North winds around 15 knots. A moderate chop on
the bay. Drizzle likely.
.TONIGHT...North winds 10 to 15 knots. A moderate chop on the
bay. Drizzle likely.
.SATURDAY...North winds 10 to 15 knots. A moderate chop on the
bay. Showers likely, mainly in the morning.
.SATURDAY NIGHT...Northwest winds 10 to 15 knots. A moderate chop
on the bay. A slight chance of thunderstorms until early morning.
A chance of showers.
.SUNDAY...Northwest winds 10 to 15 knots, becoming north 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.
.SUNDAY NIGHT...North winds 5 to 10 knots. Light chop on the bay.
.MONDAY...North winds around 5 knots, becoming east late in the
afternoon. Smooth on the bay.
.MONDAY NIGHT...East winds around 5 knots, becoming south early
in the morning. Smooth on the bay.
.TUESDAY...South winds around 5 knots, becoming southeast in the
afternoon. Light chop on the bay.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the
bay.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-220415-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
927 AM CST Fri Feb 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...Northeast winds 15 to 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Wave Detail: Northeast 7 feet at
7 seconds. Drizzle.
.TONIGHT...North winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 7 to 9 feet, occasionally to
11 feet. Wave Detail: Northeast 7 feet at 8 seconds. Drizzle
likely.
.SATURDAY...North winds 10 to 15 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: Northeast 6 feet at
8 seconds. Showers likely. A slight chance of thunderstorms late
in the afternoon.
.SATURDAY NIGHT...North winds 10 to 15 knots, becoming northwest
early in the morning. Seas 5 to 7 feet, occasionally to 9 feet.
Wave Detail: Northeast 6 feet at 8 seconds and northeast 2 feet
at 3 seconds. Showers likely with a slight chance of
thunderstorms.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet, subsiding to 4 to 5 feet in the
afternoon. Wave Detail: East 5 feet at 7 seconds and north 3 feet
at 4 seconds, becoming east 5 feet at 7 seconds and northwest
2 feet at 3 seconds. A chance of showers in the morning.
.SUNDAY NIGHT...North winds 5 to 10 knots. Seas 3 to 5 feet. Wave
Detail: East 4 feet at 7 seconds and northwest 1 foot at
3 seconds.
.MONDAY...North winds 5 to 10 knots, becoming northeast late in
the afternoon. Seas 3 to 4 feet.
.MONDAY NIGHT...East winds around 5 knots, becoming south early
in the morning. Seas 3 to 4 feet.
.TUESDAY...South winds around 5 knots, becoming southeast late in
the afternoon. Seas 3 to 4 feet.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-220415-
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-
927 AM CST Fri Feb 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

.REST OF TODAY...Northeast winds 15 to 20 knots. Seas 6 to
8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at
7 seconds. Drizzle likely.
.TONIGHT...Northeast winds 15 to 20 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail: Northeast 8 feet at
8 seconds and northwest 1 foot at 5 seconds. Drizzle likely.
.SATURDAY...Northeast winds 15 to 20 knots. Seas 6 to 9 feet,
occasionally to 11 feet. Wave Detail: East 7 feet at 8 seconds.
Showers. A slight chance of thunderstorms in the afternoon.
.SATURDAY NIGHT...North winds 10 to 15 knots, becoming west after
midnight. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail:
East 6 feet at 8 seconds. Showers likely. A chance of
thunderstorms early in the evening, then a slight chance of
thunderstorms in the late evening and overnight.
.SUNDAY...Northwest winds 10 to 15 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Wave Detail: East 5 feet at 7 seconds and
northwest 3 feet at 4 seconds. A chance of showers with a slight
chance of thunderstorms in the morning, then a slight chance of
showers in the afternoon.
.SUNDAY NIGHT...North winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 7 seconds and north 3 feet at
5 seconds.
.MONDAY...North winds 5 to 10 knots, becoming northeast late in
the afternoon. Seas 3 to 5 feet.
.MONDAY NIGHT...East winds around 5 knots, becoming southeast
after midnight. Seas 3 to 4 feet.
.TUESDAY...South winds 5 to 10 knots. Seas 3 to 4 feet.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.

Winds and seas higher in and near thunderstorms.

$$