Mouth of Atchafalaya River at Atchafalaya Bay water level

Name: Mouth of Atchafalaya River at Atchafalaya Bay water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Mouth of Atchafalaya River, Louisiana, United States

Directions

Latest reading

Water level

5.60ft Up 0.08 ft over the last 24 hours

Measured Oct 21, 2026, 03:45 AM CDT (1 hour ago)

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %)

What this means

The Mouth of Atchafalaya River at Atchafalaya Bay reads 5.60 ft as of Oct 21, 2026, 03:45 AM CDT. The agency publishes no normal range or warning level for this river yet, so there is nothing to judge the number against.

It has risen 0.08 ft over the past 24 hours. In the last month it has stayed between 3.58 ft and 6.50 ft.

Over the past seven days the change adds up to +0.36 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

Key numbers

Same day last year: 5.79 ft−0.19 ft
Lowest and highest in 30 days: 3.58 ft – 6.50 ft
Lowest and highest in 12 months: 3.37 ft – 6.38 ft

Floating and fishing near Mouth of Atchafalaya River at Atchafalaya Bay

Use the recent trend as your guide, and ask locally which gage height makes for a good float.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:11 AM Sunset 06:30 PM Daylight 11 hr, 19 min Waxing gibbous 76%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Wax Lake Outlet at CalumetRiver gauge, Wax Lake Outlet	3.26 ft	Very high	+0.23 ft	19 mi
Bayou Teche E of Calumet Flood Gate at CalumetRiver gauge, Bayou Teche E of Calumet Flood Gate	2.56 ft	Normal	+0.19 ft	19 mi
Bayou Teche W of Calumet Flood Gate at CalumetRiver gauge, Bayou Teche W of Calumet Flood Gate	2.64 ft	Normal	+0.26 ft	19 mi
GIWW at Bayou Sale Ridge near FranklinRiver gauge, Giww	3.01 ft	Very high	+0.24 ft	19 mi
Lower Atchafalaya River at Morgan CityRiver gauge, Lower Atchafalaya River	3.16 ft	Normal	+0.22 ft	20 mi
Caillou Lake (Sister Lake) SW of DulacLake	1.98 ft	Normal	−0.20 ft	28 mi
Little Bayou Long North of Duck LakeRiver gauge	2.85 ft	Normal	+0.09 ft	28 mi
Chicot Pass near Myette Point near CharentonRiver gauge, Chicot Pass	2.60 ft	Normal	+0.03 ft	33 mi

Questions and answers

How does the Mouth of Atchafalaya River at Atchafalaya Bay compare with last year?

It is 0.19 ft lower than on the same day last year, when the reading was 5.79 ft.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Mouth of Atchafalaya River at Atchafalaya Bay today?

On Oct 21, 2026, 03:45 AM CDT, the water level was 5.60 ft. Up 0.08 ft over the last 24 hours.

Is Mouth of Atchafalaya River at Atchafalaya Bay rising or falling?

Up 0.08 ft over the last 24 hours. Up 0.36 ft over the last 7 days.

Is the level of Mouth of Atchafalaya River at Atchafalaya Bay normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:073816525 (Agency page)
Coordinates: 29.43025, -91.33389 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	5.60 ft	2026-10-21 08:45	Provisional

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How to cite

U.S. Geological Survey: Mouth of Atchafalaya River at Atchafalaya Bay (usgs:073816525). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/louisiana/mouth-of-atchafalaya-river-at-atchafalaya-bay

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer