Lower Atchafalaya River Flow Today
As of October 11, 2026 at 3:00 AM, the Lower Atchafalaya River is flowing at 57,900 cfs at Morgan City, LA — 151% of normal for the date and down 21% in 24 hours. ❤ Favorite
Lower Atchafalaya River map
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Lower Atchafalaya River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At Morgan City, the Lower Atchafalaya River is running 57,900 cfs — 151% of normal, down 21% since yesterday. Along the river, 1 of 1 reporting gauges are above normal (the typical gauge is at 151% of normal).
In the last 24 hours the river is dropping at Morgan City (-21%).
How the Lower Atchafalaya River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- Morgan City3 ft 57,900 cfs151%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Lower Atchafalaya River streamgauge, placed by its own percent of normal. The line is the typical gauge (151%).
Lower Atchafalaya River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | Elevation |
|---|---|---|---|---|---|
|
Lower Atchafalaya River At Morgan City LA
Oct 11, 3:00 AM · USGS 07381600 |
57,900 cfs | 151% | -21% | 3.77 ft | 3 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Lower Atchafalaya River streamflow over time
Daily total flow across every monitored gauge on the river (this total last updated earlier; the live gauge readings above are current).
Lower Atchafalaya River
The Lower Atchafalaya River is a 140-mile-long distributary of the Mississippi River in Louisiana, USA. The river has a rich history dating back to the 1700s, when it served as an important trade route for European settlers and Native American tribes. The river's hydrology is complex and has been greatly altered by the construction of numerous reservoirs and dams. Some of the most prominent reservoirs on the Lower Atchafalaya River include the Old River Control Structure, the Morganza Spillway, and the Bayou Sorrel Lock. These structures were built to prevent flooding and manage water flow in the area. Today, the Lower Atchafalaya River supports a variety of recreational activities such as fishing, boating, and birdwatching, as well as agricultural uses such as rice farming.
Fishing near the Lower Atchafalaya River
About the Lower Atchafalaya River
How is the Lower Atchafalaya River flowing right now?
As of October 11, 2026, the Lower Atchafalaya River is flowing at 57,900 cfs at Morgan City, LA, about 151% of normal for the date. Every gauge’s live reading is in the table above.
Is the Lower Atchafalaya River running high or low?
The typical gauge on the Lower Atchafalaya River is at 151% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.