Hazardous Weather Conditions
Last Update: 832 PM CST Thu Jan 22 2026
For More Weather Information:
19NM SE Grand Isle LA
Marine Zone Forecast
Tonight
South winds around 5 knots, becoming northeast late this evening and overnight. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 7 seconds. A slight chance of showers late this evening and overnight. Patchy fog late this evening and early morning. Areas of fog late. Visibility 1 nm or less late this evening and overnight.
Friday
Northeast winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 1 to 2 feet, building to 2 to 3 feet in the afternoon. Wave detail: southeast 2 feet at 7 seconds and northeast 1 foot at 2 seconds, becoming northeast 2 feet at 3 seconds and southeast 2 feet at 7 seconds. Patchy fog in the morning. A chance of showers. Visibility 1 nm or less in the morning.
Friday Night
East winds 10 to 15 knots with gusts up to 20 knots. Seas 2 to 3 feet. Wave detail: east 3 feet at 4 seconds and southeast 1 foot at 7 seconds. A chance of showers.
Saturday
East winds 10 to 15 knots, becoming southeast in the afternoon. Seas 2 to 3 feet. Wave detail: east 3 feet at 5 seconds. A chance of showers.
Saturday Night
South winds 10 to 15 knots, increasing to 15 to 20 knots after midnight. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: south 4 feet at 5 seconds. A slight chance of thunderstorms in the evening. A chance of showers.
Sunday
Southwest winds 15 to 20 knots, becoming west 20 to 25 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: southwest 5 feet at 6 seconds. Showers in the morning, then showers with a chance of thunderstorms in the afternoon.
Sunday Night
Northwest winds 20 to 25 knots, becoming north 25 to 30 knots after midnight. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: northwest 5 feet at 4 seconds and south 2 feet at 7 seconds. A chance of showers in the evening.
Monday
North winds 25 to 30 knots, diminishing to 20 to 25 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave detail: northwest 5 feet at 4 seconds and south 1 foot at 7 seconds.
Monday Night
North winds 20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: north 4 feet at 4 seconds.
Tuesday
Northeast winds 15 to 20 knots, becoming east 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet, subsiding to 1 to 2 feet in the afternoon. Wave detail: northeast 3 feet at 4 seconds, becoming east 2 feet at 3 seconds.
Tuesday Night
East winds 5 to 10 knots. Seas 1 to 2 feet.
winds and seas higher in and near thunderstorms.
winds and seas higher in and near thunderstorms.
Additional Forecasts and Information
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