Gulf Coast Gauges

Avoca Island Cutoff South of Morgan City water level

U.S. Army Corps of Engineers gauge 03820 · Terrebonne Parish · Houma–Thibodaux

22.01 ft

stage, NGVD29 · Oct 26, 2026 at 10:30 AM CDT · 28 hours ago

Usual range
21.77 to 23.47 ft
Highest since September 30, 2025
25.83 ft

This gauge reads every 15 minutes, but the Corps publishes its readings in batches, often about a day after they are taken.

No National Weather Service alert covering Terrebonne Parish was active when this page was generated (Oct 27, 2026 at 2:35 PM CDT). Alerts are issued and expire at any time; the current list is at alerts.weather.gov.

Last 7 days

21.8 22.6 23.5 Oct 21 Oct 22 Oct 23 Oct 24 Oct 25 Oct 26

Hourly averages of the Corps' readings. The shaded band is this gauge's usual range: the middle 80% of its readings since September 30, 2025.

How to read this gauge

The number is the water surface elevation in feet on NGVD29, an older national vertical datum (NGVD29 and NAVD88 heights differ by an amount that varies from place to place): a height above a fixed survey reference, not a depth. Readings on different datums can't be compared directly.

Daily highs and lows since September 30, 2025

21.5 23.7 25.8 2025-09-30 – 2026-10-26 · bars are daily low to high

Other Corps gauges in Houma–Thibodaux

Corps gaugeStageDatumNWS flood stageUpdated
Bayou Des Allemands at Des Allemands2.64 ftNGVD29—3 hours ago
Bayou Petit Caillou at Cocodrie1.03 ftNAVD88—3 hours ago

Download the readings

avoca-island-cutoff-south-of-morgan-city.csv (CSV): every reading from the last 90 days, 8,004 rows, with time in UTC and Central, and stage in feet on NGVD29.

avoca-island-cutoff-south-of-morgan-city-daily.csv (CSV): the low and high of every day since September 30, 2025.

Source. Stage and flood-fight phases from the U.S. Army Corps of Engineers, New Orleans District; flood stages from the National Weather Service. Recent readings are provisional and can be revised. This site is not affiliated with either.