Remnants of Arthur and Heavy Rainfall Across the South; Severe Weather for the East

Potential life threatening flash flooding across the northern Gulf Coast states as the remnants of Arthur track across the area. Remember, turn around - don't drown. In addition, severe thunderstorms with tornadoes are possible with the circulation of this storm. The threat for more severe thunderstorms will occur across portions of the Northeast, mid-Atlantic and central Appalachian's. Read More >

Hazardous Weather Conditions

Small Craft Advisory until June 19, 06:00 AM CDT

For More Weather Information:

New Orleans/Baton Rouge, LA Local Forecast Office

11NM N Grand Isle LA

Marine Point Forecast

[NOTICE]

This Afternoon
High: 89 °F
SSW 20kt
1ft

Small Craft Advisory
Tonight
Low: 82 °F
SSW 20kt
< 1ft

Small Craft Advisory
Juneteenth
High: 89 °F
S 10kt
< 1ft
Friday Night
Low: 81 °F
SSW 10kt
< 1ft
Saturday
High: 88 °F
SSW 10kt
< 1ft
Saturday Night
Low: 81 °F
S 10kt
< 1ft
Sunday
High: 88 °F
SSW 10kt
< 1ft
Sunday Night
Low: 83 °F
S 15kt
< 1ft
Monday
High: 87 °F
SSW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:26 pm CDT Jun 18, 2026
Forecast Valid: 2pm CDT Jun 18, 2026-6pm CDT Jun 24, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

This Afternoon

SSW wind around 20 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Seas around 1 ft.

Tonight

SSW wind 15 to 20 kt. A slight chance of showers before 7pm. Seas 1 ft or less.

Juneteenth

S wind around 10 kt. Mostly sunny. Seas 1 ft or less.

Friday Night

SSW wind around 10 kt. A slight chance of showers between 9pm and midnight. Seas 1 ft or less.

Saturday

SSW wind 5 to 10 kt. A slight chance of showers between 10am and 4pm, then a chance of showers and thunderstorms after 4pm. Seas 1 ft or less.

Saturday Night

S wind around 10 kt. A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 4am. Seas 1 ft or less.

Sunday

SSW wind around 10 kt. Mostly sunny. Seas 1 ft or less.

Sunday Night

S wind 10 to 15 kt. Partly cloudy. Seas 1 ft or less.

Monday

SSW wind around 10 kt. Mostly sunny. Seas 1 ft or less.

Winds and seas higher in and near thunderstorms.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.