Atchafalaya River at Simmesport, LA
Is Atchafalaya River at Simmesport, LA flooding right now?
Atchafalaya River at Simmesport, LA measured 6.58 ft on 2026-09-23 00:30:00 UTC. That observation was 33.4 ft below its 40 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
6.58 ft
Streamflow
102,000 cfs
Minor flooding here begins at 40 ft, with major flooding at 50 ft. The highest crest on record was 59.13 ft on Mon, May 16, 1927.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 35 ft | 28.4 ft below |
| Minor flood | 40 ft | 33.4 ft below |
| Moderate flood | 44 ft | 37.4 ft below |
| Major flood | 50 ft | 43.4 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 59.13 ft | 1927-05-16 |
| 57.33 ft | 1922-05-16 |
| 57.14 ft | 1945-04-30 |
| 55.83 ft | 1912-05-13 |
| 55.03 ft | 1937-03-01 |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Bayou Des Glaises Div Ch near Moreauville, LA. | 10.0 mi | Avoyelles Parish |
| Old River Outflow Channel below Hydropower Channel | 10.6 mi | Concordia Parish |
| Bayou Des Glaises Diversion Ch. at Moreauville, LA | 11.5 mi | Avoyelles Parish |
| Bayou Cocodrie at Acme Levee Rd near Shaw, LA | 16.4 mi | Concordia Parish |
| Red River 6.5 miles below Black River, LA | 16.6 mi | Concordia Parish |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.