Coastal Waters Forecast
Issued by NWS Brownsville, TX

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FZUS54 KBRO 220238
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
938 PM CDT Thu Mar 21 2024

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.

GMZ100-221515-
938 PM CDT Thu Mar 21 2024

.SYNOPSIS...A weak front will approach the waters tonight then
move through early Friday. Weak high pressure will build from east
Texas through the waters Friday night through Saturday and then
move quickly east Saturday night. The difference between the
departing ridge and deepening trough of low pressure over the lee
of the Sierra Madre will rapidly increase southerly winds by
Sunday, continuing through Sunday night. A cold front is expected
to arrive by Monday night. Small Craft Advisories may be needed
Saturday night through Monday night.

$$

GMZ130-132-135-221515-
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-
938 PM CDT Thu Mar 21 2024

.REST OF TONIGHT...Northeast winds around 5 knots becoming
northwest. Smooth on the bay. Patchy fog.
.FRIDAY...West winds 5 to 10 knots becoming northwest in the
afternoon. Light chop on the bay. Patchy fog in the morning.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Light chop on the
bay.
.SATURDAY...Northeast winds 5 to 10 knots. Light chop on the bay.
.SATURDAY NIGHT...East winds 5 to 10 knots becoming southeast
10 to 15 knots after midnight. Light chop on the bay becoming a
moderate chop after midnight.
.SUNDAY...Southeast winds 15 to 20 knots with gusts up to
30 knots. Choppy on the bay.
.SUNDAY NIGHT...Southeast winds 15 to 20 knots with gusts up to
30 knots. Choppy on the bay.
.MONDAY...South winds 15 to 20 knots with gusts up to 30 knots
becoming east around 10 knots in the afternoon. Choppy on the bay
becoming light chop in the afternoon.
.MONDAY NIGHT...Northeast winds around 10 knots becoming north
after midnight. Light chop on the bay becoming a moderate chop
after midnight.
.TUESDAY...North winds around 15 knots becoming 10 to 15 knots in
the afternoon. A moderate chop on the bay.
.TUESDAY NIGHT...East winds around 10 knots. Light chop on the
bay.

$$

GMZ150-155-221515-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
938 PM CDT Thu Mar 21 2024

.REST OF TONIGHT...East winds around 5 knots becoming northwest.
Seas 2 to 3 feet. Areas of dense fog.
.FRIDAY...West winds 5 to 10 knots. Seas 2 to 3 feet. Patchy fog
in the morning.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots increasing to 10 to
15 knots after midnight. Seas 2 to 4 feet.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet.
.SATURDAY NIGHT...East winds around 10 knots becoming southeast
after midnight. Seas 3 to 4 feet.
.SUNDAY...Southeast winds 15 to 20 knots with gusts up to
30 knots. Seas 4 to 5 feet building to 5 to 7 feet, with
occasional seas up to 8 feet in the afternoon.
.SUNDAY NIGHT...Southeast winds around 20 knots with gusts up to
30 knots. Seas 6 to 8 feet, with occasional seas up to 9 feet.
.MONDAY...South winds 15 to 20 knots with gusts up to 30 knots
becoming east around 10 knots in the afternoon. Seas 5 to 7 feet,
with occasional seas up to 8 feet subsiding to 4 to 5 feet in the
afternoon.
.MONDAY NIGHT...Northeast winds around 10 knots becoming north
after midnight. Seas 4 to 5 feet.
.TUESDAY...North winds 10 to 15 knots. Seas 4 to 6 feet, with
occasional seas up to 7 feet.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.

$$

GMZ170-175-221515-
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-
938 PM CDT Thu Mar 21 2024

.REST OF TONIGHT...East winds around 5 knots becoming west. Seas
3 to 4 feet. Areas of dense fog.
.FRIDAY...West winds 5 to 10 knots. Seas 3 to 4 feet. Areas of
fog in the morning.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Seas 3 to 4 feet
building to 4 to 6 feet, with occasional seas up to 7 feet after
midnight.
.SATURDAY...Northeast winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. Seas 3 to 5 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots becoming southeast
after midnight. Seas 3 to 4 feet.
.SUNDAY...Southeast winds 15 to 20 knots with gusts up to
30 knots. Seas 4 to 5 feet building to 5 to 7 feet, with
occasional seas up to 8 feet in the afternoon.
.SUNDAY NIGHT...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 6 to 8 feet, with occasional seas up to 9 feet.
.MONDAY...South winds 15 to 20 knots with gusts up to 30 knots
becoming southeast 10 to 15 knots in the afternoon. Seas 6 to
8 feet, with occasional seas up to 9 feet.
.MONDAY NIGHT...Northeast winds around 10 knots becoming north
after midnight. Seas 5 to 7 feet, with occasional seas up to
8 feet.
.TUESDAY...North winds 15 to 20 knots with gusts up to 30 knots
decreasing to 10 to 15 knots in the afternoon. Seas 5 to 7 feet,
with occasional seas up to 8 feet.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 4 to
6 feet, with occasional seas up to 7 feet.

$$


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