Lower Atchafalaya River river
River streamflow levels
Daily aggregate streamflow across every monitored gauge along the Lower Atchafalaya River. Use the range buttons to zoom in on a specific period.
Total streamflow
Sum of all monitored streamgauges · daily
Every streamgauge along the Lower Atchafalaya River
All 1 USGS gauges Snoflo tracks for this river, with current flow, stage, recent change, percent of normal, and the gauge's all-time min / max. Click any header to sort. Cells are heatmapped relative to the column min/max -- darker blue = higher.
| Streamgauge▾ | Streamflow (cfs)▾ | Gauge stage (ft)▾ | 24h Δ (%)▾ | % Normal▾ | Min (cfs)▾ | Max (cfs)▾ | Elevation (ft)▾ |
|---|---|---|---|---|---|---|---|
|
Lower Atchafalaya River At Morgan City
LA
USGS 07381600
|
97,600 | 3.00 | 10.4 | 54% | 74 | 494,000 | 3 |
Streamflow elevation profile
Each bubble is one gauge along the river, plotted by current streamflow (x-axis) vs elevation (y-axis), sized by gauge stage. Reading top-to-bottom traces the river from headwaters down to its mouth -- you can see flow accumulate as elevation drops.
Elevation vs streamflow
One point per monitored gauge · bubble size = gauge stage
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.
Recreation along the Lower Atchafalaya River
Fishing access and paddle runs Snoflo tracks within the watershed.
Track the Lower Atchafalaya River in the Snoflo app
Set per-gauge push alerts (e.g. "alert me when flow at the Russian R Nr Healdsburg crosses 5,000 cfs"), and Snoflo's iOS app pushes the moment USGS reports the crossing.
About the Lower Atchafalaya River
Where does the data for the Lower Atchafalaya River come from?
Streamflow and gauge stage data are sourced from the U.S. Geological Survey (USGS) National Water Information System. The aggregate flow shown at the top of the page is computed by Snoflo as the sum of all monitored gauges along the river.
How is "percent of normal" calculated?
Today's aggregate streamflow is compared to the historical average aggregate streamflow on this calendar day across the river's full record. 100% means right on average; values above 100% indicate above-normal flow (wet year); values below indicate below-normal (dry year or drought).
Why are some gauges showing very different flows?
Gauges along a river measure flow at different points: headwater gauges read what's coming off the snowpack or mountain runoff; downstream gauges integrate everything upstream, including tributary inputs. Wide spreads usually mean a tributary is contributing significantly between gauges.
What's the elevation profile chart showing?
Each bubble is one gauge along the river, plotted by streamflow (x-axis) and elevation (y-axis), sized by gauge stage. Reading top-down traces the river from headwaters to mouth -- you can see flow build as elevation drops.
Can I get alerts when a specific gauge crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app on a per-gauge basis. Open any individual streamgauge from the table above and favorite it to set a discharge threshold.