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Brownsville, TX Local Forecast Office

46NM ENE Port Isabel TX

Marine Zone Forecast

Today

West winds 5 to 10 knots, becoming northwest early this afternoon, then increasing to 10 to 15 knots late this afternoon. Seas 2 to 3 feet. Wave detail: northwest 2 feet at 3 seconds and east 2 feet at 5 seconds. A slight chance of showers early this morning.

Tonight

North winds 15 to 20 knots, increasing to 20 to 25 knots with gusts up to 30 knots in the late evening and overnight. Seas 3 to 5 feet, building to 6 to 9 feet, occasionally to 11 feet after midnight. Wave detail: north 5 feet at 5 seconds, becoming north 9 feet at 7 seconds.

Monday

North winds around 25 knots with gusts up to 30 knots, diminishing to 15 to 20 knots with gusts up to 30 knots in the afternoon. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet in the afternoon. Wave detail: north 9 feet at 7 seconds, becoming northeast 7 feet at 7 seconds.

Monday Night

Northeast winds 15 to 20 knots, diminishing to 10 to 15 knots in the late evening and overnight. Seas 3 to 5 feet. Wave detail: northeast 5 feet at 7 seconds.

Tuesday

Northeast winds 5 to 10 knots, becoming east in the afternoon. Seas 2 to 3 feet. Wave detail: northeast 3 feet at 6 seconds.

Tuesday Night

Southeast winds 5 to 10 knots, becoming south 10 to 15 knots after midnight. Seas 2 to 3 feet. Wave detail: south 2 feet at 3 seconds and east 2 feet at 6 seconds.

Wednesday

South winds 10 to 15 knots. Seas 2 to 3 feet.

Wednesday Night

South winds 15 to 20 knots. Seas 3 to 4 feet.

Thursday

South winds 10 to 15 knots. Seas 2 to 4 feet.

Thursday Night

South winds 10 to 15 knots. Seas 2 to 4 feet.