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Brownsville, TX Local Forecast Office

17NM NE Port Isabel TX

Marine Zone Forecast

Today

Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 5 seconds.

Tonight

Southeast winds around 15 knots. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 6 seconds.

Sunday

South winds 10 to 15 knots. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 6 seconds.

Sunday Night

Southeast winds 10 to 15 knots, diminishing to 5 to 10 knots in the late evening and early morning, then becoming east 15 to 20 knots early in the morning. Seas 3 to 4 feet. Wave detail: southeast 3 feet at 6 seconds. Showers likely with a slight chance of thunderstorms after midnight. Showers likely with a chance of thunderstorms early in the morning.

Monday

North winds 20 to 25 knots, increasing to 25 to 30 knots in the afternoon. Seas 5 to 7 feet, occasionally to 9 feet, building to 8 to 13 feet, occasionally to 17 feet in the afternoon. Wave detail: northeast 6 feet at 6 seconds and northeast 3 feet at 3 seconds, becoming northeast 11 feet at 8 seconds. A slight chance of thunderstorms early in the morning. A chance of showers in the morning, then a slight chance of showers in the afternoon.

Monday Night

North winds 20 to 25 knots. Seas 9 to 12 feet, occasionally to 15 feet. Wave detail: northeast 12 feet at 8 seconds and north 3 feet at 4 seconds.

Tuesday

North winds 15 to 20 knots, diminishing to 10 to 15 knots late in the afternoon. Seas 7 to 10 feet, occasionally to 13 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the afternoon.

Tuesday Night

North winds 5 to 10 knots. Seas 3 to 5 feet.

Wednesday

Northeast winds around 5 knots, becoming east in the afternoon. Seas 2 to 3 feet.

Wednesday Night

Southeast winds 5 to 10 knots, becoming south after midnight. Seas 2 to 3 feet.

winds and seas higher in and near thunderstorms.

Winds and seas higher in and near thunderstorms.