Marine Weather Net

Matagorda Bay Marine Forecast


TODAY

NE
WINDS
15 - 20
KNOTS

TONIGHT

NE
WINDS
10 - 15
KNOTS

TUESDAY

NE
WINDS
10 - 15
KNOTS

TUESDAY NIGHT

NE
WINDS
10 - 15
KNOTS

The Marine Weather Forecast In Detail:
GMZ330 Forecast Issued: 110 PM CDT Mon Oct 05 2026

Today...Northeast Winds 15 To 20 Knots. Bay Waters Choppy. A Slight Chance Of Showers. A Slight Chance Of Thunderstorms Late.
Tonight...Northeast Winds 10 To 15 Knots With Gusts Up To 20 Knots. Bay Waters Slightly Choppy.
Tuesday...Northeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy.
Tuesday Night...Northeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy.
Wednesday...Northeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy.
Wednesday Night...East Winds 10 To 15 Knots, Becoming Northeast Around 10 Knots After Midnight. Bay Waters Slightly Choppy, Diminishing To Smooth After Midnight.
Thursday...Northeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy. A Chance Of Showers And Thunderstorms In The Afternoon.
Thursday Night...Northeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy. A Chance Of Showers After Midnight.
Friday...Northeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy. A Chance Of Showers.
Friday Night...Northeast Winds 10 To 15 Knots. Bay Waters Slightly Choppy. Winds And Waves Higher In And Near Thunderstorms.
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Area Forecast Discussion
National Weather Service Houston/Galveston TX
1256pm CDT Monday Oct 5 2026

Issued at 1242pm CDT Monday Oct 5 2026

The frontal boundary (along with any rain chances)remains well offshore this afternoon. The result of a drier airmass can be seen on GOES satellite imagery, with much of SE Texas experiencing partly cloudy to sunny skies. Locations along the coast are in closer proximity to the offshore boundary and a coastal trough, so they remain socked in with broken to overcast skies. A few showers and an isolated storm may find their way to the coast with the afternoon sea breeze. Expect this trend to continue through the next couple of days.

By mid week, high pressure will lift further NE, and a mid-level trough will develop across northern Mexico and West Texas. Closer to the coast we will see an increase in moisture as the frontal zone and coastal trough drift northward. This will result in an uptick in rain chances for locations south of the I-10 corridor and along the coast.

Bailey

Marine
Issued at 1242pm CDT Monday Oct 5 2026

Cool front remains offshore this afternoon with moderate to strong NE winds and elevated seas continuing into the evening hours. Periods of rain will continue along the coast and offshore into Tuesday...more so in the Gulf waters. Winds and seas will slightly diminish toward midweek, but increase once again during the second half of the work week as a coastal trough and unsettled weather across the western Gulf tracks back northward toward the coast.

Bailey

Tropical
Issued at 1242pm CDT Monday Oct 5 2026

A trough of low pressure over the SW Gulf of America is producing disorganized showers and thunderstorms. Currently, there is around 80% chance of development. Wind shear appears like it could be fairly strong across northwest parts of the Gulf coast later this week, and any development that occurs is expected to track north and east away from SE Texas, but let's keep an eye on things. Climatologically speaking, the southern, east central, and eastern portions of the Gulf tend to be more prone to seeing tropical systems in the month of October. Regardless of any tropical development...winds, seas and rain chances will increase in the local marine environment during the second half of the week with a coastal trough in place.

Bailey/47

NOAA Houston/Galveston TX Office: Watches - Warnings - Advisories
TX...None. GM...Small Craft Advisory until 1pm CDT this afternoon for GMZ330- 335.

Small Craft Advisory until 7pm CDT this evening for GMZ350-355- 370-375.