Chart / Forecasts

Laguna Madre from the Arroyo Colorado To 5 NM north of Port Mansfield TX

GMZ132 · Coastal Waters Forecast · National Weather Service Brownsville TX · Issued 151 PM CDT Sat Oct 3 2026
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Forecast
Rest Of Today
North winds around 15 knots. A moderate chop on the bay. A chance of thunderstorms. Showers likely.
Tonight
Northeast winds 10 to 15 knots, becoming north 15 to 20 knots early in the morning. A moderate chop on the bay, increasing to choppy early in the morning. A chance of thunderstorms. Showers.
Sunday
North winds 15 to 20 knots. Choppy on the bay. A chance of thunderstorms. Showers.
Sunday Night
Northeast winds 10 to 15 knots, increasing to 15 to 20 knots early in the morning. A moderate chop on the bay, increasing to choppy early in the morning. A chance of thunderstorms. Showers.
Monday
North winds 15 to 20 knots. Choppy on the bay. Showers with a chance of thunderstorms.
Monday Night
North winds 10 to 15 knots. A moderate chop on the bay. Showers. A chance of thunderstorms until early morning, then a slight chance of thunderstorms early in the morning.
Tuesday
North winds 10 to 15 knots. A moderate chop on the bay. Showers likely in the morning. A chance of thunderstorms. A chance of showers in the afternoon.
Tuesday Night
Northeast winds 10 to 15 knots, becoming north 5 to 10 knots after midnight. A moderate chop on the bay, diminishing to light chop after midnight. A chance of showers. A chance of thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and overnight.
Wednesday
North winds 10 to 15 knots. A moderate chop on the bay. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon.
Wednesday Night
Northeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the late evening and overnight. A moderate chop on the bay, diminishing to light chop in the late evening and overnight. A chance of thunderstorms in the evening. A chance of showers. A slight chance of thunderstorms after midnight. Winds and waves higher in and near thunderstorms.
Synopsis
Northerly winds are expected to continue through the forecast period with a coastal trough of low pressure settling into the lower Texas coast. Expect seas to build Sunday into Monday, with some improvement into mid-week. The chance of showers and thunderstorms remains high into Tuesday, with periods of heavy rainfall and reduced visibility.
Source: National Weather Service Coastal Waters Forecast (CWF), issued 151 PM CDT Sat Oct 3 2026, valid until Sun, 04 Oct 2026 07:15 UTC. Original text · All zones