918
FZUS54 KBRO 101638
CWFBRO

Coastal Waters Forecast for the Lower Texas Coast
National Weather Service Brownsville TX
1138 AM CDT Fri Oct 10 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.

GMZ100-110530-
1138 AM CDT Fri Oct 10 2025

.SYNOPSIS...Small Craft Exercise Caution conditions are ongoing
this afternoon for the Bay and the Gulf waters. Conditions should
start to improve tonight, and rain chances are expected to
decrease to almost zero as high pressure settles in. Primarily
light to moderate onshore winds, rain-free conditions, 7 to 8
second periods, and seas decreasing to slight Saturday through
early next week will continue.

$$

GMZ130-132-135-110530-
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-
1138 AM CDT Fri Oct 10 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TODAY...Northeast winds 15 to 20 knots. A moderate chop
on the bay. A slight chance of showers late this morning.
.TONIGHT...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. A moderate chop on the bay, diminishing
to light chop after midnight.
.SATURDAY...North winds 5 to 10 knots, becoming northeast in the
afternoon. Light chop on the bay.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Light chop on the bay, diminishing to smooth
after midnight.
.SUNDAY...Southeast winds around 5 knots, increasing to 5 to
10 knots in the afternoon. Smooth on the bay, increasing to light
chop in the afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the
bay.
.MONDAY...Southeast winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Light chop on the bay, increasing to a
moderate chop in the afternoon.
.MONDAY NIGHT...Southeast winds 5 to 10 knots. Light chop on the
bay.
.TUESDAY...East winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Light chop on the bay, increasing to a moderate
chop in the afternoon. A slight chance of showers late in the
morning.
.TUESDAY NIGHT...East winds 5 to 10 knots. Light chop on the bay.

$$

GMZ150-155-110530-
Gulf waters from Port Mansfield to the Rio Grande out 20 nm-
Gulf waters from Baffin Bay to Port Mansfield out 20 nm-
1138 AM CDT Fri Oct 10 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION...

.REST OF TODAY...Northeast winds 15 to 20 knots. Seas 4 to 5
feet. Wave Detail: Southeast 4 feet at 7 seconds.
.TONIGHT...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Seas 3 to 5 feet. Wave Detail: East
4 feet at 7 seconds.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 7 seconds.
.SATURDAY NIGHT...East winds 5 to 10 knots, becoming southeast
after midnight. Seas 3 to 4 feet. Wave Detail: East 3 feet at
8 seconds.
.SUNDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 8 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 8 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas 2 to 4 feet.
.MONDAY NIGHT...East winds around 10 knots. Seas 2 to 3 feet. A
slight chance of showers early in the morning.
.TUESDAY...East winds 5 to 10 knots. Seas 2 to 3 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet.

$$

GMZ170-175-110530-
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-
1138 AM CDT Fri Oct 10 2025

...SMALL CRAFT SHOULD EXERCISE CAUTION....

.REST OF TODAY...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots this evening. Seas 4 to 6 feet, occasionally to 7
feet. Wave Detail: East 5 feet at 7 seconds.
.TONIGHT...Northeast winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds.
.SATURDAY...Northeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 7 seconds.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas 3 to 4 feet. Wave Detail: East 4 feet at
8 seconds.
.SUNDAY...East winds 5 to 10 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 8 seconds.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 8 seconds.
.MONDAY...Southeast winds 5 to 10 knots. Seas 3 to 4 feet.
.MONDAY NIGHT...East winds around 10 knots. Seas 3 to 4 feet. A
slight chance of showers until early morning.
.TUESDAY...East winds around 10 knots. Seas 3 to 4 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots. Seas 2 to 4 feet.

$$