228
FZUS54 KBRO 150934
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
334 AM CST Wed Jan 15 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.

GMZ100-152230-
334 AM CST Wed Jan 15 2025

.SYNOPSIS...Fresh to strong north-northeasterly winds across the
coastal waters have led to Small Craft Advisory (SCA) conditions
this evening, expected to continue into Thursday. Sea heights are
expected to build to 6 to 8 feet with occasional 10 foot seas,
with the strongest winds overnight as a pressure gradient
strengthens due to an approaching shortwave trough. On Thursday,
conditions will slightly improve as the gradient relaxes, but
Small Craft Advisory conditions are expected at least through noon
on Thursday. Friday and Saturday will have more favorable winds
and wave heights until a strong cold front pushes through Saturday
evening, which will deteriorate marine conditions again by
Sunday.

$$

GMZ130-132-135-152230-
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-
334 AM CST Wed Jan 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...

.TODAY...North winds 15 to 20 knots, increasing to 20 to 25 knots
this afternoon. A moderate chop on the bay, increasing to choppy
this afternoon. Showers likely with a slight chance of
thunderstorms early this morning. A chance of drizzle this
morning, then a slight chance of drizzle this afternoon.
.TONIGHT...North winds 20 to 25 knots. Choppy on the bay. A
slight chance of very light drizzle.
.THURSDAY...North winds 15 to 20 knots, becoming northeast late
in the afternoon. A moderate chop on the bay.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
late in the evening, then becoming southeast after midnight,
becoming south early in the morning. Light chop on the bay,
diminishing to smooth in the late evening and overnight.
.FRIDAY...South winds 5 to 10 knots, increasing to 10 to 15 knots
late in the afternoon. Light chop on the bay, increasing to a
moderate chop late in the afternoon.
.FRIDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots early in the morning. A moderate chop on the bay,
diminishing to light chop early in the morning.
.SATURDAY...West winds around 5 knots, becoming north in the
afternoon, then becoming around 10 knots late in the afternoon.
Smooth on the bay, increasing to light chop in the afternoon.
.SATURDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Choppy on the bay.
.SUNDAY...North winds 15 to 20 knots. Choppy on the bay.
.SUNDAY NIGHT...North winds around 15 knots. A moderate chop on
the bay. A slight chance of drizzle after midnight.

Winds and waves higher in and near thunderstorms.

$$

GMZ150-155-152230-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
334 AM CST Wed Jan 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...

.TODAY...North winds 15 to 20 knots, increasing to 20 to 25
knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave Detail:
Northeast 8 feet at 7 seconds. Drizzle likely with showers this
morning. A slight chance of thunderstorms. A chance of drizzle
this afternoon.
.TONIGHT...North winds 20 to 25 knots, diminishing to 15 to
20 knots early in the morning. Seas 6 to 9 feet, occasionally to
11 feet. Wave Detail: Northeast 9 feet at 8 seconds and north
2 feet at 3 seconds. A slight chance of thunderstorms and drizzle
early in the evening, then a slight chance of drizzle in the late
evening and overnight.
.THURSDAY...North winds 20 to 25 knots, diminishing to 15 to 20
knots in the afternoon. Seas 6 to 8 feet, occasionally to 10 feet.
Wave Detail: Northeast 7 feet at 8 seconds and north 2 feet at 4
seconds. A slight chance of very light drizzle in the morning.
.THURSDAY NIGHT...Northeast winds 5 to 10 knots, becoming
southeast early in the morning. Seas 3 to 5 feet. Wave Detail:
East 5 feet at 8 seconds.
.FRIDAY...South winds 5 to 10 knots, increasing to 10 to 15 knots
late in the afternoon. Seas 3 to 4 feet. Wave Detail: East 4 feet
at 8 seconds.
.FRIDAY NIGHT...South winds 10 to 15 knots, becoming southwest
5 to 10 knots early in the morning. Seas 3 to 4 feet. Wave
Detail: Southeast 4 feet at 7 seconds.
.SATURDAY...West winds 5 to 10 knots, becoming northwest late in
the morning, then becoming north in the afternoon. Seas 2 to
3 feet.
.SATURDAY NIGHT...North winds 10 to 15 knots, increasing to 15 to
20 knots in the late evening and overnight. Seas 3 to 5 feet.
.SUNDAY...North winds 20 to 25 knots. Seas 5 to 7 feet,
occasionally to 9 feet.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. A slight chance of drizzle after
midnight.

Winds and seas higher in and near thunderstorms.

$$

GMZ170-175-152230-
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-
334 AM CST Wed Jan 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...

.TODAY...Northeast winds 15 to 20 knots, becoming north 20 to 25
knots with gusts up to 30 knots. Seas 6 to 8 feet, occasionally to
10 feet. Wave Detail: Northeast 8 feet at 7 seconds. Showers with
possible drizzle and thunderstorms likely this morning, then a
chance of thunderstorms and drizzle this afternoon.
.TONIGHT...North winds 20 to 25 knots. Seas 7 to 9 feet,
occasionally to 11 feet. Wave Detail: Northeast 9 feet at
8 seconds and north 7 feet at 7 seconds. A slight chance of
thunderstorms early in the evening. A chance of drizzle in the
evening, then a slight chance of very light drizzle after
midnight.
.THURSDAY...North winds 20 to 25 knots, becoming northeast 15 to
20 knots late in the afternoon. Seas 7 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the
afternoon. Wave Detail: North 7 feet at 7 seconds, becoming north
6 feet at 7 seconds. A slight chance of very light drizzle.
.THURSDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots in the late evening and early morning, then
becoming southeast early in the morning. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at
8 seconds.
.FRIDAY...South winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 8 seconds and south 3 feet at 4 seconds.
.FRIDAY NIGHT...South winds 15 to 20 knots, becoming southwest
10 to 15 knots early in the morning. Seas 4 to 5 feet. Wave
Detail: Southeast 4 feet at 6 seconds.
.SATURDAY...West winds 10 to 15 knots, becoming north in the
afternoon. Seas 3 to 4 feet.
.SATURDAY NIGHT...North winds 15 to 20 knots, increasing to 20 to
25 knots early in the morning. Seas 4 to 6 feet, occasionally to
8 feet.
.SUNDAY...North winds 20 to 25 knots. Seas 6 to 9 feet,
occasionally to 11 feet. A slight chance of drizzle.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 6 to 9 feet,
occasionally to 11 feet. A chance of drizzle after midnight.

Winds and seas higher in and near thunderstorms.

$$