Marine Weather Net

Laguna Madre from the Arroyo Colorado to Port Mansfield, TX Marine Forecast


TODAY

SE
WINDS
5 - 10
KNOTS

TONIGHT

SE
WINDS
10 - 15
KNOTS

THURSDAY

S
WINDS
5 KNOTS

THURSDAY NIGHT

SE
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ132 Forecast Issued: 1250 AM CDT Wed Mar 18 2026

Today...Southeast Winds 5 To 10 Knots, Increasing To 10 To 15 Knots This Afternoon. A Moderate Chop On The Bay.
Tonight...Southeast Winds 10 To 15 Knots, Becoming South 5 To 10 Knots Early In The Morning. A Moderate Chop On The Bay, Diminishing To A Light Chop On The Bay Early In The Morning.
Thursday...South Winds Around 5 Knots, Becoming Southeast Early In The Afternoon, Then Increasing To 10 To 15 Knots Late In The Afternoon. A Light Chop On The Bay, Then Increasing To A Moderate Chop On The Bay Late In The Afternoon.
Thursday Night...Southeast Winds 10 To 15 Knots, Becoming South 5 To 10 Knots After Midnight. A Light Chop On The Bay.
Friday...South Winds Around 5 Knots, Becoming Southeast Early In The Afternoon, Then Increasing To 10 To 15 Knots Late In The Afternoon. A Light Chop On The Bay, Then Increasing To A Moderate Chop On The Bay Late In The Afternoon.
Friday Night...Southeast Winds 10 To 15 Knots, Becoming South After Midnight. A Moderate Chop On The Bay.
Saturday...South Winds 5 To 10 Knots, Becoming Southeast 10 To 15 Knots In The Afternoon. A Moderate Chop On The Bay.
Saturday Night...South Winds 10 To 15 Knots, Becoming Around 10 Knots Early In The Morning. A Moderate Chop On The Bay, Diminishing To A Light Chop On The Bay Early In The Morning.
Sunday...South Winds 10 To 15 Knots, Becoming Southeast 15 To 20 Knots Late In The Afternoon. A Moderate Chop On The Bay, Increasing To Choppy Bay Waters Late In The Afternoon.
Sunday Night...Southeast Winds 15 To 20 Knots, Becoming South 5 To 10 Knots. Choppy Bay Waters, Diminishing To A Light Chop On The Bay.
SHARE THIS PAGE:           
Area Forecast Discussion
...UPDATED National Weather Service Brownsville TX
1235am CDT Wednesday Mar 18 2026

Issued at 1017pm CDT Tuesday Mar 17 2026

Quiet conditions will prevail through the forecast period as high pressure remains in control. A warming trend will continue through the week with 90s returning by Friday.

Dry conditions will continue and humidity levels will rebound into midweek. By the end of the week and through the weekend a drier airmass moves back into the region. Humidity levels fall back into the teens across the Rio Grande Plains to the 30s across the inland coastal counties. While current forecast winds will remain just shy of any fire weather criteria the ongoing drought with critical to extremely dry fuels could lead to rapid wildfire growth if ignited. Will continue to monitor for the potential for Fire Weather products.

Marine
Issued at 1017pm CDT Tuesday Mar 17 2026

Favorable conditions will continue on the waters off the lower Texas coast through the period. Winds though Friday will remain light to moderate with seas of 2 to 3 feet. Over the weekend, the pressure gradient tightens slightly and small craft caution may be needed primarily on the Laguna Madre and nearshore Gulf waters.

NOAA Brownsville TX Office: Watches - Warnings - Advisories
None.