Station Name: Grand Isle
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 16 feet

Sensor Depth: -4 feet

Nearest Address:
93 Aquasport Dr
Grand Isle, LA 70358
Jefferson County

GPS Coordinates: 29.263, -89.957

Nearby Water Temperatures

Flood Watch issued May 25 at 1:13PM CDT until May 25 at 7:00PM CDT by NWS New Orleans LA

Effective: Mon May 25, 2026, 1:13 PM
Expires: Tue May 26, 2026, 3:15 AM

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of southeast Louisiana and southern Mississippi including St. Charles, Jefferson, Orleans, Plaquemines, St. Bernard, St. Tammany and Washington Parishes, and Hancock, Harrison, Jackson, and Pearl River Counties. * WHEN...From 5 AM Tuesday through 7 PM Tuesday. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Flood Watch issued May 25 at 1:13PM CDT until May 26 at 7:00PM CDT by NWS New Orleans LA

Effective: Mon May 25, 2026, 1:13 PM
Expires: Tue May 26, 2026, 3:15 AM

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of southeast Louisiana and southern Mississippi including St. Charles, Jefferson, Orleans, Plaquemines, St. Bernard, St. Tammany and Washington Parishes, and Hancock, Harrison, Jackson, and Pearl River Counties. * WHEN...From 5 AM Tuesday through 7 PM Tuesday. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Flood Watch issued May 25 at 6:52PM CDT until May 26 at 7:00PM CDT by NWS New Orleans LA

Effective: Mon May 25, 2026, 6:52 PM
Expires: Tue May 26, 2026, 9:00 AM

The Flash Flood Watch is cancelled for portions of southeast Louisiana, including the following parishes, Central Jefferson, Central Plaquemines, Central St. Charles, Coastal Jefferson, Eastern Orleans, Lower Plaquemines, Lower St. Bernard, Lower St. Charles, Northern St. Tammany, Southeast St. Tammany, Southwestern St. Tammany, Upper Jefferson, Upper Plaquemines, Upper St. Bernard, Upper St. Charles, Washington and Western Orleans and southern Mississippi, including the following areas, Northern Hancock, Northern Harrison, Northern Jackson, Pearl River, Southern Hancock, Southern Harrison and Southern Jackson. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures.