Atchafalaya River at Simmesport
Critical Stages
35' - Action
40' - Flood
44' - Moderate
50' - Major
Latest Observation
Updated: 1:30 PM CST 12/15/25
Status: No Flooding
Stage: 4.92 ft
Flow: 69 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 6 PM 12/15 | 4.9 | 68.7 |
| 12 AM 12/16 | 5.2 | 72.8 |
| 6 AM 12/16 | 5.5 | 76.8 |
| 12 PM 12/16 | 5.3 | 74.1 |
| 6 PM 12/16 | 5 | 70.1 |
| 12 AM 12/17 | 4.6 | 64.7 |
| 6 AM 12/17 | 4.4 | 62.3 |
| 12 PM 12/17 | 4.3 | 61 |
| 6 PM 12/17 | 4.2 | 59.8 |
| 12 AM 12/18 | 4.1 | 58.6 |
| 6 AM 12/18 | 4.1 | 58.6 |
| 12 PM 12/18 | 4.1 | 58.6 |
| 6 PM 12/18 | 4.1 | 58.6 |
| 12 AM 12/19 | 4 | 57.3 |
| 6 AM 12/19 | 4 | 57.3 |
| 12 PM 12/19 | 3.8 | 54.8 |
| 6 PM 12/19 | 3.8 | 54.8 |
| 12 AM 12/20 | 3.7 | 53.6 |
| 6 AM 12/20 | 3.6 | 52.3 |
| 12 PM 12/20 | 3.5 | 51.2 |
| 6 PM 12/20 | 3.5 | 51.2 |
| 12 AM 12/21 | 3.4 | 50 |
| 6 AM 12/21 | 3.4 | 50 |
| 12 PM 12/21 | 3.4 | 50 |
| 6 PM 12/21 | 3.5 | 51.2 |
| 12 AM 12/22 | 3.6 | 52.3 |
| 6 AM 12/22 | 3.7 | 53.6 |
| 12 PM 12/22 | 3.8 | 54.8 |
| 6 PM 12/22 | 3.9 | 56.1 |
| 12 AM 12/23 | 4.2 | 59.8 |
| 6 AM 12/23 | 4.4 | 62.3 |
| 12 PM 12/23 | 4.5 | 63.5 |
| 6 PM 12/23 | 4.6 | 64.7 |
| 12 AM 12/24 | 4.7 | 66 |
| 6 AM 12/24 | 4.7 | 66 |
| 12 PM 12/24 | 4.6 | 64.7 |
| 6 PM 12/24 | 4.5 | 63.5 |
| 12 AM 12/25 | 4.3 | 61 |
| 6 AM 12/25 | 4.2 | 59.8 |
| 12 PM 12/25 | 4 | 57.3 |
| 6 PM 12/25 | 3.8 | 54.8 |
| 12 AM 12/26 | 3.7 | 53.6 |
| 6 AM 12/26 | 3.6 | 52.3 |
| 12 PM 12/26 | 3.6 | 52.3 |
| 6 PM 12/26 | 3.6 | 52.3 |
| 12 AM 12/27 | 3.5 | 51.2 |
| 6 AM 12/27 | 3.5 | 51.2 |
| 12 PM 12/27 | 3.5 | 51.2 |
| 6 PM 12/27 | 3.5 | 51.2 |
| 12 AM 12/28 | 3.5 | 51.2 |
| 6 AM 12/28 | 3.4 | 50 |
| 12 PM 12/28 | 3.4 | 50 |
| 6 PM 12/28 | 3.5 | 51.2 |
| 12 AM 12/29 | 3.5 | 51.2 |
| 6 AM 12/29 | 3.5 | 51.2 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 1:30 PM 12/15 | 4.92 | 69 |
| 1:15 PM 12/15 | 4.89 | 68.6 |
| 1:00 PM 12/15 | 4.89 | 68.6 |
| 12:50 PM 12/15 | 4.9 | 68.7 |
| 12:45 PM 12/15 | 4.92 | 69 |
| 12:35 PM 12/15 | 4.92 | 69 |
| 12:30 PM 12/15 | 4.9 | 68.7 |
| 12:15 PM 12/15 | 4.88 | 68.4 |
| 12:00 PM 12/15 | 4.8 | 67.3 |
| 11:45 AM 12/15 | 4.84 | 67.9 |
| 11:30 AM 12/15 | 4.88 | 68.4 |
| 11:15 AM 12/15 | 4.88 | 68.4 |
| 11:00 AM 12/15 | 4.86 | 68.2 |
| 10:45 AM 12/15 | 4.86 | 68.2 |
| 10:30 AM 12/15 | 4.86 | 68.2 |
| 10:15 AM 12/15 | 4.93 | 69.1 |
| 10:00 AM 12/15 | 4.86 | 68.2 |
| 9:45 AM 12/15 | 4.87 | 68.3 |
| 9:30 AM 12/15 | 4.87 | 68.3 |
| 9:15 AM 12/15 | 4.94 | 69.2 |
| 9:00 AM 12/15 | 4.91 | 68.8 |
| 8:45 AM 12/15 | 4.9 | 68.7 |
| 8:30 AM 12/15 | 4.93 | 69.1 |
| 8:15 AM 12/15 | 4.92 | 69 |
| 8:00 AM 12/15 | 4.96 | 69.5 |
| 7:45 AM 12/15 | 4.95 | 69.4 |
| 7:30 AM 12/15 | 5 | 70.1 |
| 7:15 AM 12/15 | 5.01 | 70.2 |
| 7:00 AM 12/15 | 5.01 | 70.2 |
| 6:45 AM 12/15 | 5.01 | 70.2 |
61' -
The river level is at the net grade protection of the levee system
60' -
The river is at the lowest height of the back ring protection levee around the city of Simmesport
43' -
The river stage is at the natural ground elevation of areas protected by the levee system
40' -
There will be flooding of areas inside the levees of the Atchafalaya floodway. Considerable flooding in the backwater storage area in Avoyelles Parish.
35' -
Backwater flooding of unprotected areas above Simmesport will begin
| Date | Stage (ft) |
|---|---|
| May 16, 1927 | 59.13 |
| May 16, 1922 | 57.33 |
| Apr 30, 1945 | 57.14 |
| May 13, 1912 | 55.83 |
| Mar 1, 1937 | 55.03 |
| May 15, 1973 | 54.78 |
| Mar 1, 1916 | 54.23 |
| Mar 4, 1950 | 54.23 |
| Mar 7, 1932 | 53.43 |
| May 9, 1913 | 52.63 |
| May 21, 1920 | 52.23 |
| Jun 12, 1929 | 52.13 |
| May 13, 1897 | 51.24 |
| May 22, 1944 | 51.18 |
| Jun 19, 1908 | 50.93 |
| Apr 17, 1975 | 49.11 |
| Apr 16, 1923 | 49.03 |
| Jun 26, 1893 | 48.66 |
| Jun 24, 1992 | 48.55 |
| Jun 24, 1892 | 48.55 |
Data provided by the National Weather Service.
