Louisiana River Levels & Streamflow
As of Aug 22, 2026, Louisiana rivers are running at 72% of normal across 49 USGS gauges — the highest is 244,000 cfs on the Mississippi River At Baton Rouge. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Louisiana.
Streamflow levels across Louisiana are currently 72% of normal, with the Mississippi River At Baton Rouge reporting the highest discharge in the state at 244,000 cfs and a gauge stage of 8.14 ft.
Meanwhile, the Mermentau River At Mermentau is seeing a spike today — up 179% since yesterday and currently running near peak.
Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into Louisiana's named rivers.
State-wide streamflow overview
The Louisiana flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.
Percent of normal
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Gauge stage 8.14 ft
Biggest 24h spike
Now 251 cfs
Network coverage
USGS gauges feeding 0 named rivers in Louisiana.
Louisiana USGS streamgauges
Every USGS gauge Snoflo tracks in Louisiana. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Mississippi River At Baton Rouge, La
1 day ago · USGS 07374000 |
252,000 cfs | 8.43 ft | 83°F | 79°F | 16 ft | Lower Mississippi-Baton Rouge |
|
(Coe) Atchafalaya River At Simmesport, La
1 day ago · USGS 07381490 |
124,000 cfs | 8.41 ft | · | 76°F | 28 ft | Atchafalaya |
|
Wax Lake Outlet At Calumet, La
1 day ago · USGS 07381590 |
49,100 cfs | 2.55 ft | · | 78°F | 3 ft | Atchafalaya |
|
Lower Atchafalaya River At Morgan City, La
1 day ago · USGS 07381600 |
24,800 cfs | 2.51 ft | 90°F | 81°F | 3 ft | Atchafalaya |
|
Pearl River Near Bogalusa, La
1 day ago · USGS 02489500 |
2,040 cfs | 6.69 ft | · | 74°F | 73 ft | Lower Pearl. Mississippi |
|
Vermilion River At Perry, La
6 days ago · USGS 07386980 |
1,240 cfs | 4.34 ft | · | 78°F | 1 ft | Vermilion |
|
Amite River At Port Vincent, La
1 day ago · USGS 07380120 |
1,140 cfs | · | · | 78°F | · | Amite |
|
Vermilion River At Surrey St. At Lafayette, La
1 day ago · USGS 07386880 |
797 cfs | 4.97 ft | 89°F | 77°F | 3 ft | Vermilion |
|
Bogue Chitto River Near Bush, La
1 day ago · USGS 02492000 |
711 cfs | 3.02 ft | · | 74°F | 50 ft | Bogue Chitto |
|
Amite River Near Denham Springs, La
1 day ago · USGS 07378500 |
437 cfs | 10.11 ft | · | 79°F | 25 ft | Amite |
|
Bayou Lafourche At Thibodaux, La
1 day ago · USGS 07381000 |
419 cfs | 3.18 ft | · | 78°F | 2 ft | East Central Louisiana Coastal |
|
Tangipahoa River At Robert, La
1 day ago · USGS 07375500 |
405 cfs | 6.64 ft | · | 76°F | 18 ft | Tangipahoa |
|
Calcasieu River Near Kinder, La
1 day ago · USGS 08015500 |
333 cfs | 2.01 ft | · | 77°F | 22 ft | Whisky Chitto |
|
Bayou Lafourche Sw Of Donaldsonville, La
1 day ago · USGS 07380401 |
258 cfs | 7.43 ft | · | 78°F | 9 ft | East Central Louisiana Coastal |
|
Whiskey Chitto Creek Near Oberlin, La
1 day ago · USGS 08014500 |
237 cfs | 2.88 ft | 80°F | 76°F | 56 ft | Whisky Chitto |
|
Amite River Near Darlington, La
1 day ago · USGS 07377000 |
235 cfs | · | · | 75°F | 149 ft | Amite |
|
Bayou Pierre Near Lake End, La
1 day ago · USGS 07351750 |
170 cfs | 5.36 ft | · | 77°F | 99 ft | Bayou Pierre |
|
Bayou Teche At Adeline Bridge Near Jeanerette, La
5 days ago · USGS 07385765 |
138 cfs | 1.54 ft | · | 77°F | · | Bayou Teche |
|
Comite River Near Comite, La
1 day ago · USGS 07378000 |
129 cfs | · | · | 80°F | 24 ft | Amite |
|
Bayou Des Glaises Diversion Ch. At Moreauville, La
5 days ago · USGS 07383500 |
122 cfs | 3.96 ft | · | 77°F | 25 ft | Bayou Teche |
|
Tickfaw River At Holden, La
1 day ago · USGS 07376000 |
116 cfs | · | · | 77°F | 21 ft | Tickfaw |
|
Bayou Courtableau At Washington, La
1 day ago · USGS 07382500 |
109 cfs | 18.25 ft | · | 77°F | 17 ft | Bayou Teche |
|
Mermentau River At Mermentau, La
1 day ago · USGS 08012150 |
89 cfs | 2.07 ft | · | 78°F | 1 ft | Mermentau |
|
Bayou Lafourche Near Crew Lake, La
1 day ago · USGS 07369000 |
70 cfs | · | · | 77°F | 37 ft | Boeuf |
|
Tchefuncta River Near Folsom, La
1 day ago · USGS 07375000 |
69 cfs | 5.07 ft | · | 75°F | 78 ft | Liberty Bayou-Tchefuncta |
|
Calcasieu River Near Oberlin, La
1 day ago · USGS 08013500 |
60 cfs | 1.33 ft | · | 76°F | 49 ft | Upper Calcasieu |
|
Bayou Cocodrie Nr Clearwater, La
1 day ago · USGS 07382000 |
54 cfs | 4.71 ft | · | 78°F | 50 ft | Bayou Teche |
|
Bayou Nezpique Near Basile, La
1 day ago · USGS 08012000 |
45 cfs | 2.83 ft | · | 77°F | 19 ft | Mermentau Headwaters |
|
Tickfaw River At Liverpool, La
1 day ago · USGS 07375800 |
40 cfs | 1.55 ft | · | 75°F | 210 ft | Tickfaw |
|
Calcasieu River Nr Glenmora, La
1 day ago · USGS 08013000 |
31 cfs | 4.85 ft | · | 77°F | 121 ft | Upper Calcasieu |
|
Little River Near Rochelle, La
1 day ago · USGS 07372200 |
25 cfs | 4.52 ft | · | 76°F | 46 ft | Little |
|
Tensas River At Tendal, La
1 day ago · USGS 07369500 |
20 cfs | 6.32 ft | · | 75°F | 63 ft | Tensas |
|
Natalbany River At Baptist, La
1 day ago · USGS 07376500 |
20 cfs | 3.89 ft | · | 77°F | 25 ft | Tickfaw |
|
Bayou Bartholomew Near Jones, La
1 day ago · USGS 07364200 |
18 cfs | 1.20 ft | · | 72°F | 94 ft | Bayou Bartholomew |
|
Bundick Ck Nr De Ridder, La
1 day ago · USGS 08014800 |
17 cfs | 2.44 ft | · | 77°F | 135 ft | Whisky Chitto |
|
Red Chute Bayou At Sligo, La
1 day ago · USGS 07349860 |
13 cfs | 16.17 ft | · | 78°F | 144 ft | Red Chute |
|
Bayou Des Cannes Nr Eunice, La
1 day ago · USGS 08010000 |
13 cfs | · | · | 77°F | 28 ft | Mermentau Headwaters |
|
Bayou Dorcheat Near Springhill, La
1 day ago · USGS 07348700 |
11 cfs | 4.33 ft | · | 77°F | 178 ft | Loggy Bayou |
|
Bayou Macon Nr Kilbourne, La
1 day ago · USGS 07369700 |
8 cfs | 3.61 ft | · | 74°F | 87 ft | Bayou Macon |
|
Little Corney Bayou Near Lillie, La
1 day ago · USGS 07366200 |
7 cfs | 2.03 ft | · | 76°F | 103 ft | Bayou D'Arbonne |
|
Big Creek At Pollock, La
1 day ago · USGS 07373000 |
7 cfs | 2.39 ft | · | 76°F | 88 ft | Little |
|
Saline Bayou Near Lucky, La
1 day ago · USGS 07352000 |
7 cfs | 3.22 ft | · | 77°F | 157 ft | Saline Bayou |
|
Bayou Anacoco Near Rosepine, La
1 day ago · USGS 08028000 |
3 cfs | 3.08 ft | · | 76°F | 131 ft | Lower Sabine |
|
Cypress Bayou Near Keithville, La
1 day ago · USGS 07351500 |
1 cfs | · | · | 79°F | 173 ft | Bayou Pierre |
|
Boeuf River Nr Girard, La
1 day ago · USGS 07368000 |
0 cfs | 5.92 ft | · | 76°F | 57 ft | Boeuf |
|
Bayou Toro Near Toro, La
1 day ago · USGS 08025500 |
0 cfs | 2.34 ft | · | 77°F | 152 ft | Lower Sabine |
|
Bayou Grand Cane Near Stanley, La
1 day ago · USGS 08023080 |
0 cfs | 2.28 ft | · | 78°F | 184 ft | Toledo Bend Reservoir |
|
Chemin-A-Haut Byu Nr Beekman, La
1 day ago · USGS 07364300 |
0 cfs | 6.91 ft | · | 73°F | 91 ft | Bayou Bartholomew |
|
Bayou San Patricio Near Benson, La
1 day ago · USGS 08023400 |
0 cfs | 5.62 ft | · | 77°F | 222 ft | Toledo Bend Reservoir |
See every Louisiana gauge ranked against normal.
- Percentile rank & % of median for all 49 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
About Louisiana streamflow
What are river levels like in Louisiana right now?
As of August 22, 2026, Louisiana rivers are running at 72% of normal across 49 USGS streamgauges, and the Mississippi River At Baton Rouge is reporting the highest discharge at 244,000 cfs. The full sortable gauge table is below.
Which Louisiana river is running highest right now?
As of August 22, 2026, the highest discharge in Louisiana is 244,000 cfs on the Mississippi River At Baton Rouge. See the sortable gauge table for the full statewide ranking.
Are Louisiana rivers high or low right now?
Compare the statewide percent-of-normal on this page: above 100% means Louisiana rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.
Where does the Louisiana streamflow data come from?
The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.
What is cfs?
Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.
What does Gauge Height mean?
The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").
How fresh is the Louisiana data?
USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.
Can I get a flow alert for a Louisiana gauge?
Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.
Is this a substitute for an NWS flood warning?
No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.
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