Rivers in Louisiana

Atchafalaya River above Butte La Rose

St. Martin Parish, LouisianaNWS BLRL1USGS 07381515Lake Charles office

Below flood stage
3.77ftStage

Observed Sun, Sep 27, 6:00 AM CDT

Flood stage
20.00 ft
Forecast crest
6.60 ftWed, Oct 7, 7:00 PM CDT
Record crest
27.28 ft1973

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood28.00 ft
Moderate flood25.00 ft
Minor flood20.00 ft
Action17.00 ft
  1. 28.00 ftThe community of Butte La Rose will be flooded. Several homes will sustain major damage. Although the project levee height is 33 feet, back water flooding will impact the community and evacuation is strongly recommended.
  2. 27.00 ftIndustrial operations will be curtailed. A few homes near the river will flood. River traffic negotiating sharp turns will remain difficult.
  3. 26.00 ftThe walkway to the river gauge will be under water and the gage will be inaccessible. Industrial storage areas near the river will flood. Unsecured material and equipment on property near the river will float off or become damaged. River traffic negotiating sharp turns will become difficult.
  4. 25.00 ftIndustrial storage areas near the river will flood. Unsecured material and equipment on property near the river will float off or become damaged. River traffic negotiating sharp turns will become difficult.
  5. 22.00 ftRiver traffic negotiating sharp turns will become difficult. Industrial equipment will be threatened and should be relocated to avoid damage.
  6. 20.00 ftMinor flooding begins.
  7. 17.00 ftAction stage.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor floodingUnder 5%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 16, 2026.

Crest history

102 crests on NOAA’s list since 1927.

#DateStage
1May 23, 197327.28 ft
2March 3, 195027.00 ft
3June 2, 196126.60 ft
4June 11, 195726.40 ft
5April 29, 196226.40 ft
6May 22, 195826.20 ft
7April 13, 195525.90 ft
8February 25, 194925.80 ft
9April 28, 194525.70 ft
10May 28, 195325.60 ft
11April 16, 195225.50 ft
12April 19, 197525.35 ft
13March 11, 195125.30 ft
14March 4, 195625.10 ft
15April 7, 196324.70 ft
16April 20, 194824.30 ft
17April 25, 196024.20 ft
18April 23, 196523.83 ft
19January 30, 194623.80 ft
20May 6, 194723.70 ft
21May 23, 194423.60 ft
22March 3, 195923.40 ft
23May 26, 201123.15 ft
24April 3, 196422.92 ft
25April 29, 197922.87 ft

Most recent crests

  • May 7, 2025: 19.33 ft
  • May 31, 2022: 15.95 ft
  • April 16, 2021: 18.12 ft
  • April 13, 2020: 20.05 ft
  • March 15, 2019: 20.84 ft
  • March 20, 2018: 20.70 ft
  • May 30, 2017: 19.29 ft
  • January 22, 2016: 20.71 ft
  • October 10, 2013: 3.10 ft
  • May 22, 2013: 16.34 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Lower Mississippi River Forecast Center. Forecasts are issued routinely year-round. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.