Louisiana River Levels & Streamflow
As of Oct 17, 2026, Louisiana rivers are running at 121% of normal across 48 USGS gauges — the highest is 316,000 cfs on the Mississippi River At Baton Rouge. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Louisiana.
Louisiana river map
See Louisiana’s rivers on a live map
Every gauge, river and reservoir, one tap each:
- Rivers now — which are running high or low
- Reservoirs — how full each one is vs normal
- Rain — past 24 hrs and the 72-hr forecast, press play
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Louisiana river conditions today
Where rivers are running versus normal, what’s spiking and what’s coming — refreshed daily from USGS and NOAA.
Streamflow levels across Louisiana are currently 121% of normal, with the Mississippi River At Baton Rouge reporting the highest discharge in the state at 316,000 cfs and a gauge stage of 11.33 ft.
Meanwhile, the Mermentau River At Mermentau is seeing a spike today — up 330% 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
Louisiana is under multiple weather alerts on October 17th due to a cold front bringing dangerous conditions statewide. Wind Advisories affecting southeast Louisiana including the New Orleans area and central/southwest regions near Lake Charles warn of north winds 15-25 mph with gusts up to 35 mph, potentially causing power outages and downed tree limbs through mid-afternoon. More critically, Red Flag Warnings across north-central Louisiana, the Baton Rouge area, and southwest Louisiana through 7-8 PM CDT indicate critical fire weather conditions with relative humidity as low as 30 percent combined with gusty winds and drought conditions. Any fires that develop will spread rapidly. Residents throughout affected areas should secure loose objects, avoid outdoor burning, and monitor local conditions closely as these hazardous weather patterns persist through Saturday evening.
How Louisiana’s rivers compare to normal
Every gauge placed by its own percent of normal, and three years of the statewide trend.
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 Oct 2023. The dotted line is normal.
799 daily readings from 44 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 flow report
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Mississippi River At Baton Rouge, La
8 hours ago · USGS 07374000 |
327,000 cfs | 11.83 ft | 74°F | 55°F | 16 ft | Lower Mississippi-Baton Rouge |
|
(Coe) Atchafalaya River At Simmesport, La
8 hours ago · USGS 07381490 |
145,000 cfs | 10.29 ft | · | 50°F | 28 ft | Atchafalaya |
|
Wax Lake Outlet At Calumet, La
8 hours ago · USGS 07381590 |
88,000 cfs | 1.40 ft | · | 55°F | 3 ft | Atchafalaya |
|
Lower Atchafalaya River At Morgan City, La
8 hours ago · USGS 07381600 |
82,000 cfs | 1.64 ft | 76°F | 59°F | 3 ft | Atchafalaya |
|
Pearl River Near Bogalusa, La
8 hours ago · USGS 02489500 |
1,520 cfs | 5.95 ft | · | 56°F | 73 ft | Lower Pearl. Mississippi |
|
Mermentau River At Mermentau, La
7 hours ago · USGS 08012150 |
1,040 cfs | 1.56 ft | · | 54°F | 1 ft | Mermentau |
|
Vermilion River At Surrey St. At Lafayette, La
7 hours ago · USGS 07386880 |
977 cfs | 5.47 ft | 76°F | 54°F | 3 ft | Vermilion |
|
Amite River At Port Vincent, La
7 hours ago · USGS 07380120 |
849 cfs | 2.21 ft | · | 58°F | · | Amite |
|
Bogue Chitto River Near Bush, La
8 hours ago · USGS 02492000 |
621 cfs | 2.71 ft | · | 56°F | 50 ft | Bogue Chitto |
|
Bayou Teche At Adeline Bridge Near Jeanerette, La
8 hours ago · USGS 07385765 |
412 cfs | 1.45 ft | · | 54°F | · | Bayou Teche |
|
Bayou Lafourche Sw Of Donaldsonville, La
7 hours ago · USGS 07380401 |
362 cfs | 7.10 ft | · | 58°F | 9 ft | East Central Louisiana Coastal |
|
Tangipahoa River At Robert, La
8 hours ago · USGS 07375500 |
349 cfs | 6.37 ft | · | 56°F | 18 ft | Tangipahoa |
|
Bayou Lafourche At Thibodaux, La
8 hours ago · USGS 07381000 |
329 cfs | 3.25 ft | · | 55°F | 2 ft | East Central Louisiana Coastal |
|
Amite River Near Denham Springs, La
7 hours ago · USGS 07378500 |
326 cfs | 9.69 ft | · | 54°F | 25 ft | Amite |
|
Red Chute Bayou At Sligo, La
7 hours ago · USGS 07349860 |
246 cfs | 17.26 ft | · | 46°F | 144 ft | Red Chute |
|
Calcasieu River Near Kinder, La
7 hours ago · USGS 08015500 |
244 cfs | 1.49 ft | · | 52°F | 22 ft | Whisky Chitto |
|
Amite River Near Darlington, La
7 hours ago · USGS 07377000 |
235 cfs | · | · | 51°F | 149 ft | Amite |
|
Whiskey Chitto Creek Near Oberlin, La
7 hours ago · USGS 08014500 |
213 cfs | 2.71 ft | 57°F | 51°F | 56 ft | Whisky Chitto |
|
Bayou Pierre Near Lake End, La
8 hours ago · USGS 07351750 |
135 cfs | 5.29 ft | · | 49°F | 99 ft | Bayou Pierre |
|
Tickfaw River At Holden, La
8 hours ago · USGS 07376000 |
97 cfs | · | · | 54°F | 21 ft | Tickfaw |
|
Bayou Courtableau At Washington, La
8 hours ago · USGS 07382500 |
73 cfs | 18.20 ft | · | 52°F | 17 ft | Bayou Teche |
|
Bayou Cocodrie Nr Clearwater, La
8 hours ago · USGS 07382000 |
62 cfs | 5.32 ft | · | 50°F | 50 ft | Bayou Teche |
|
Comite River Near Comite, La
7 hours ago · USGS 07378000 |
62 cfs | · | · | 54°F | 24 ft | Amite |
|
Tchefuncta River Near Folsom, La
8 hours ago · USGS 07375000 |
59 cfs | 4.84 ft | · | 56°F | 78 ft | Liberty Bayou-Tchefuncta |
|
Tickfaw River At Liverpool, La
7 hours ago · USGS 07375800 |
47 cfs | 1.56 ft | · | 51°F | 210 ft | Tickfaw |
|
Bayou Anacoco Near Rosepine, La
8 hours ago · USGS 08028000 |
44 cfs | 3.36 ft | · | 51°F | 131 ft | Lower Sabine |
|
Calcasieu River Near Oberlin, La
7 hours ago · USGS 08013500 |
41 cfs | 1.04 ft | · | 51°F | 49 ft | Upper Calcasieu |
|
Calcasieu River Nr Glenmora, La
8 hours ago · USGS 08013000 |
23 cfs | 4.56 ft | · | 50°F | 121 ft | Upper Calcasieu |
|
Big Creek At Pollock, La
8 hours ago · USGS 07373000 |
19 cfs | 2.67 ft | · | 50°F | 88 ft | Little |
|
Saline Bayou Near Lucky, La
8 hours ago · USGS 07352000 |
18 cfs | 3.56 ft | · | 48°F | 157 ft | Saline Bayou |
|
Bayou Lafourche Near Crew Lake, La
8 hours ago · USGS 07369000 |
16 cfs | · | · | 49°F | 37 ft | Boeuf |
|
Bundick Ck Nr De Ridder, La
7 hours ago · USGS 08014800 |
14 cfs | 2.30 ft | · | 51°F | 135 ft | Whisky Chitto |
|
Natalbany River At Baptist, La
8 hours ago · USGS 07376500 |
13 cfs | 3.73 ft | · | 56°F | 25 ft | Tickfaw |
|
Bayou Macon Nr Kilbourne, La
8 hours ago · USGS 07369700 |
13 cfs | 3.93 ft | · | 48°F | 87 ft | Bayou Macon |
|
Little River Near Rochelle, La
8 hours ago · USGS 07372200 |
12 cfs | 3.98 ft | · | 50°F | 46 ft | Little |
|
Bayou Des Glaises Diversion Ch. At Moreauville, La
8 hours ago · USGS 07383500 |
10 cfs | 2.88 ft | · | 50°F | 25 ft | Bayou Teche |
|
Bayou Nezpique Near Basile, La
7 hours ago · USGS 08012000 |
8 cfs | 1.69 ft | · | 52°F | 19 ft | Mermentau Headwaters |
|
Bayou Bartholomew Near Jones, La
8 hours ago · USGS 07364200 |
5 cfs | · | · | 46°F | 94 ft | Bayou Bartholomew |
|
Cypress Bayou Near Keithville, La
8 hours ago · USGS 07351500 |
3 cfs | 1.24 ft | · | 46°F | 173 ft | Bayou Pierre |
|
Tensas River At Tendal, La
8 hours ago · USGS 07369500 |
1 cfs | 5.53 ft | · | 49°F | 63 ft | Tensas |
|
Bayou Toro Near Toro, La
8 hours ago · USGS 08025500 |
1 cfs | 2.33 ft | · | 50°F | 152 ft | Lower Sabine |
|
Boeuf River Nr Girard, La
8 hours ago · USGS 07368000 |
1 cfs | 6.04 ft | · | 49°F | 57 ft | Boeuf |
|
Bayou Des Cannes Nr Eunice, La
8 hours ago · USGS 08010000 |
1 cfs | · | · | 52°F | 28 ft | Mermentau Headwaters |
|
Bayou Dorcheat Near Springhill, La
8 hours ago · USGS 07348700 |
0 cfs | 3.58 ft | · | 44°F | 178 ft | Loggy Bayou |
|
Chemin-A-Haut Byu Nr Beekman, La
8 hours ago · USGS 07364300 |
0 cfs | 6.55 ft | · | 47°F | 91 ft | Bayou Bartholomew |
|
Little Corney Bayou Near Lillie, La
8 hours ago · USGS 07366200 |
0 cfs | 1.35 ft | · | 46°F | 103 ft | Bayou D'Arbonne |
|
Bayou San Patricio Near Benson, La
8 hours ago · USGS 08023400 |
0 cfs | 5.99 ft | · | 49°F | 222 ft | Toledo Bend Reservoir |
|
Bayou Grand Cane Near Stanley, La
8 hours ago · USGS 08023080 |
0 cfs | 1.96 ft | · | 47°F | 184 ft | Toledo Bend Reservoir |
About Louisiana streamflow
What are river levels like in Louisiana right now?
As of October 17, 2026, Louisiana rivers are running at 121% of normal across 48 USGS streamgauges, and the Mississippi River At Baton Rouge is reporting the highest discharge at 316,000 cfs. The full sortable gauge table is below.
Which Louisiana river is running highest right now?
As of October 17, 2026, the highest discharge in Louisiana is 316,000 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.