Louisiana River Levels & Streamflow
As of Sep 1, 2026, Louisiana rivers are running at 127% of normal across 49 USGS gauges — the highest is 418,000 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 127% of normal, with the Mississippi River At Baton Rouge reporting the highest discharge in the state at 418,000 cfs and a gauge stage of 16.06 ft.
Meanwhile, the Bayou Courtableau At Washington is seeing a spike today — up 95% 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.
Active weather warnings for Louisiana
Tropical Storm Edouard is approaching southwestern Louisiana and poses significant threats to coastal and inland parishes. Life-threatening storm surge of 3-5 feet is possible along the coast near Johnson Bayou, Holly Beach, and Hackberry, while 1-3 feet of surge threatens areas near Abbeville and Intracoastal City through Wednesday morning. Tropical Storm Warnings are active for Calcasieu, Vermilion, and Cameron Parishes, with Tropical Storm force winds of 39-57 mph expected in Lake Charles, Carlyss, and surrounding communities. Moderate rainfall flooding of 1-3 inches is anticipated, potentially causing evacuations and road closures. Coastal Flood Advisories also remain in effect for Lower Iberia, Lower St. Mary, and Lower Vermilion Parishes with minor flooding of lots and parks expected. Residents should complete all preparations immediately, seek shelter away from surge zones, and never drive through flooded roadways—remember, turn around don't drown. Monitor weather.gov and NOAA Weather Radio for updates.
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 16.06 ft
Biggest 24h spike
Now 252 cfs
Network coverage
USGS gauges feeding 0 named rivers in Louisiana.
Where every gauge actually sits
One dot per Louisiana streamgauge, placed by its own percent of normal. The state average is a single line through all of it.
Percent of normal compares today's discharge with the historical average for this calendar day. Tap any dot to open that gauge.
Louisiana streamflow, three water years
Statewide percent of normal, every day since Aug 2023. The dotted line is normal.
799 daily readings from 47 reporting gauges. Percent of normal is today's statewide discharge against the historical average for the same calendar day — 100% is normal, not "good". The line breaks in 2 places where the record skips more than five days — those are gaps in reporting, not readings of zero.
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
11 hours ago · USGS 07374000 |
413,000 cfs | 15.86 ft | 86°F | 77°F | 16 ft | Lower Mississippi-Baton Rouge |
|
(Coe) Atchafalaya River At Simmesport, La
10 hours ago · USGS 07381490 |
181,000 cfs | 14.34 ft | · | 75°F | 28 ft | Atchafalaya |
|
Wax Lake Outlet At Calumet, La
10 hours ago · USGS 07381590 |
82,700 cfs | 3.64 ft | · | 76°F | 3 ft | Atchafalaya |
|
Lower Atchafalaya River At Morgan City, La
10 hours ago · USGS 07381600 |
63,300 cfs | 3.43 ft | 86°F | 79°F | 3 ft | Atchafalaya |
|
Pearl River Near Bogalusa, La
11 hours ago · USGS 02489500 |
2,350 cfs | 7.09 ft | · | 73°F | 73 ft | Lower Pearl. Mississippi |
|
Mermentau River At Mermentau, La
11 hours ago · USGS 08012150 |
1,130 cfs | 1.80 ft | · | 77°F | 1 ft | Mermentau |
|
Bogue Chitto River Near Bush, La
11 hours ago · USGS 02492000 |
905 cfs | 3.63 ft | · | 73°F | 50 ft | Bogue Chitto |
|
Amite River At Port Vincent, La
11 hours ago · USGS 07380120 |
773 cfs | 2.87 ft | · | 77°F | · | Amite |
|
Vermilion River At Surrey St. At Lafayette, La
11 hours ago · USGS 07386880 |
541 cfs | 5.81 ft | 87°F | 77°F | 3 ft | Vermilion |
|
Tangipahoa River At Robert, La
10 hours ago · USGS 07375500 |
503 cfs | 7.06 ft | · | 75°F | 18 ft | Tangipahoa |
|
Amite River Near Denham Springs, La
11 hours ago · USGS 07378500 |
463 cfs | 10.20 ft | · | 77°F | 25 ft | Amite |
|
Bayou Lafourche At Thibodaux, La
10 hours ago · USGS 07381000 |
460 cfs | 3.34 ft | · | 78°F | 2 ft | East Central Louisiana Coastal |
|
Bayou Lafourche Sw Of Donaldsonville, La
10 hours ago · USGS 07380401 |
325 cfs | 7.64 ft | · | 77°F | 9 ft | East Central Louisiana Coastal |
|
Calcasieu River Near Kinder, La
11 hours ago · USGS 08015500 |
320 cfs | 1.94 ft | · | 76°F | 22 ft | Whisky Chitto |
|
Amite River Near Darlington, La
11 hours ago · USGS 07377000 |
283 cfs | · | · | 74°F | 149 ft | Amite |
|
Vermilion River At Perry, La
1 day ago · USGS 07386980 |
246 cfs | 6.34 ft | · | 77°F | 1 ft | Vermilion |
|
Whiskey Chitto Creek Near Oberlin, La
11 hours ago · USGS 08014500 |
228 cfs | 2.82 ft | 77°F | 76°F | 56 ft | Whisky Chitto |
|
Bayou Lafourche Near Crew Lake, La
10 hours ago · USGS 07369000 |
198 cfs | 1.18 ft | · | 75°F | 37 ft | Boeuf |
|
Bayou Pierre Near Lake End, La
10 hours ago · USGS 07351750 |
155 cfs | 5.33 ft | · | 75°F | 99 ft | Bayou Pierre |
|
Bayou Courtableau At Washington, La
10 hours ago · USGS 07382500 |
131 cfs | 18.02 ft | · | 76°F | 17 ft | Bayou Teche |
|
Comite River Near Comite, La
11 hours ago · USGS 07378000 |
130 cfs | · | · | 77°F | 24 ft | Amite |
|
Tickfaw River At Holden, La
10 hours ago · USGS 07376000 |
114 cfs | · | · | 76°F | 21 ft | Tickfaw |
|
Bayou Bartholomew Near Jones, La
11 hours ago · USGS 07364200 |
112 cfs | 2.90 ft | · | 73°F | 94 ft | Bayou Bartholomew |
|
Bayou Teche At Adeline Bridge Near Jeanerette, La
10 hours ago · USGS 07385765 |
100 cfs | 1.99 ft | · | 75°F | · | Bayou Teche |
|
Tchefuncta River Near Folsom, La
11 hours ago · USGS 07375000 |
68 cfs | 5.05 ft | · | 74°F | 78 ft | Liberty Bayou-Tchefuncta |
|
Bayou Cocodrie Nr Clearwater, La
10 hours ago · USGS 07382000 |
65 cfs | 4.97 ft | · | 75°F | 50 ft | Bayou Teche |
|
Calcasieu River Near Oberlin, La
11 hours ago · USGS 08013500 |
55 cfs | 1.26 ft | · | 75°F | 49 ft | Upper Calcasieu |
|
Bayou Des Glaises Diversion Ch. At Moreauville, La
10 hours ago · USGS 07383500 |
52 cfs | 3.41 ft | · | 75°F | 25 ft | Bayou Teche |
|
Tickfaw River At Liverpool, La
11 hours ago · USGS 07375800 |
48 cfs | 1.58 ft | · | 73°F | 210 ft | Tickfaw |
|
Calcasieu River Nr Glenmora, La
10 hours ago · USGS 08013000 |
33 cfs | 4.93 ft | · | 75°F | 121 ft | Upper Calcasieu |
|
Little River Near Rochelle, La
10 hours ago · USGS 07372200 |
23 cfs | 4.47 ft | · | 75°F | 46 ft | Little |
|
Natalbany River At Baptist, La
11 hours ago · USGS 07376500 |
20 cfs | 3.90 ft | · | 75°F | 25 ft | Tickfaw |
|
Bayou Nezpique Near Basile, La
11 hours ago · USGS 08012000 |
18 cfs | 2.13 ft | · | 76°F | 19 ft | Mermentau Headwaters |
|
Bundick Ck Nr De Ridder, La
11 hours ago · USGS 08014800 |
16 cfs | 2.40 ft | · | 76°F | 135 ft | Whisky Chitto |
|
Bayou Macon Nr Kilbourne, La
10 hours ago · USGS 07369700 |
16 cfs | 4.07 ft | · | 74°F | 87 ft | Bayou Macon |
|
Tensas River At Tendal, La
10 hours ago · USGS 07369500 |
16 cfs | 6.17 ft | · | 74°F | 63 ft | Tensas |
|
Bayou Dorcheat Near Springhill, La
11 hours ago · USGS 07348700 |
15 cfs | 4.50 ft | · | 74°F | 178 ft | Loggy Bayou |
|
Saline Bayou Near Lucky, La
10 hours ago · USGS 07352000 |
14 cfs | 3.47 ft | · | 75°F | 157 ft | Saline Bayou |
|
Red Chute Bayou At Sligo, La
11 hours ago · USGS 07349860 |
12 cfs | 16.16 ft | · | 76°F | 144 ft | Red Chute |
|
Bayou Anacoco Near Rosepine, La
10 hours ago · USGS 08028000 |
12 cfs | 3.06 ft | · | 75°F | 131 ft | Lower Sabine |
|
Boeuf River Nr Girard, La
10 hours ago · USGS 07368000 |
10 cfs | 6.38 ft | · | 74°F | 57 ft | Boeuf |
|
Big Creek At Pollock, La
10 hours ago · USGS 07373000 |
10 cfs | 2.48 ft | · | 74°F | 88 ft | Little |
|
Little Corney Bayou Near Lillie, La
11 hours ago · USGS 07366200 |
7 cfs | 1.99 ft | · | 74°F | 103 ft | Bayou D'Arbonne |
|
Cypress Bayou Near Keithville, La
11 hours ago · USGS 07351500 |
6 cfs | 1.49 ft | · | 76°F | 173 ft | Bayou Pierre |
|
Bayou Toro Near Toro, La
11 hours ago · USGS 08025500 |
3 cfs | 2.45 ft | · | 75°F | 152 ft | Lower Sabine |
|
Bayou Des Cannes Nr Eunice, La
11 hours ago · USGS 08010000 |
2 cfs | · | · | 76°F | 28 ft | Mermentau Headwaters |
|
Chemin-A-Haut Byu Nr Beekman, La
10 hours ago · USGS 07364300 |
1 cfs | 7.41 ft | · | 73°F | 91 ft | Bayou Bartholomew |
|
Bayou San Patricio Near Benson, La
10 hours ago · USGS 08023400 |
0 cfs | 5.41 ft | · | 75°F | 222 ft | Toledo Bend Reservoir |
|
Bayou Grand Cane Near Stanley, La
10 hours ago · USGS 08023080 |
0 cfs | 2.16 ft | · | 76°F | 184 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 September 1, 2026, Louisiana rivers are running at 127% of normal across 49 USGS streamgauges, and the Mississippi River At Baton Rouge is reporting the highest discharge at 418,000 cfs. The full sortable gauge table is below.
Which Louisiana river is running highest right now?
As of September 1, 2026, the highest discharge in Louisiana is 418,000 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.
Streamflow in every state
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