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Weather Forecast Office New Orleans/Baton Rouge, LA Lower Mississippi River Forecast Center
Flood Warning
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Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Atchafalaya River above Butte La Rose Stage (ft)Observed: 15.42 ft at 9:45AM May 15, 2013Observed: 15.4 ft at 10:00AM May 15, 2013Observed: 15.41 ft at 10:15AM May 15, 2013Observed: 15.43 ft at 10:30AM May 15, 2013Observed: 15.42 ft at 10:45AM May 15, 2013Observed: 15.42 ft at 11:00AM May 15, 2013Observed: 15.42 ft at 11:15AM May 15, 2013Observed: 15.41 ft at 11:30AM May 15, 2013Observed: 15.41 ft at 11:45AM May 15, 2013Observed: 15.44 ft at 12:00PM May 15, 2013Observed: 15.45 ft at 12:15PM May 15, 2013Observed: 15.43 ft at 12:30PM May 15, 2013Observed: 15.43 ft at 12:45PM May 15, 2013Observed: 15.43 ft at 1:00PM May 15, 2013Observed: 15.44 ft at 1:15PM May 15, 2013Observed: 15.39 ft at 1:30PM May 15, 2013Observed: 15.41 ft at 1:45PM May 15, 2013Observed: 15.41 ft at 2:00PM May 15, 2013Observed: 15.44 ft at 2:15PM May 15, 2013Observed: 15.43 ft at 2:30PM May 15, 2013Observed: 15.42 ft at 2:45PM May 15, 2013Observed: 15.43 ft at 3:00PM May 15, 2013Observed: 15.44 ft at 3:15PM May 15, 2013Observed: 15.44 ft at 3:30PM May 15, 2013Observed: 15.43 ft at 3:45PM May 15, 2013Observed: 15.44 ft at 4:00PM May 15, 2013Observed: 15.44 ft at 4:15PM May 15, 2013Observed: 15.45 ft at 4:30PM May 15, 2013Observed: 15.46 ft at 4:45PM May 15, 2013Observed: 15.46 ft at 5:00PM May 15, 2013Observed: 15.46 ft at 5:15PM May 15, 2013Observed: 15.45 ft at 5:30PM May 15, 2013Observed: 15.46 ft at 5:45PM May 15, 2013Observed: 15.46 ft at 6:00PM May 15, 2013Observed: 15.48 ft at 6:15PM May 15, 2013Observed: 15.48 ft at 6:30PM May 15, 2013Observed: 15.47 ft at 6:45PM May 15, 2013Observed: 15.49 ft at 7:00PM May 15, 2013Observed: 15.5 ft at 7:15PM May 15, 2013Observed: 15.5 ft at 7:30PM May 15, 2013Observed: 15.51 ft at 7:45PM May 15, 2013Observed: 15.52 ft at 8:00PM May 15, 2013Observed: 15.52 ft at 8:15PM May 15, 2013Observed: 15.52 ft at 8:30PM May 15, 2013Observed: 15.5 ft at 8:45PM May 15, 2013Observed: 15.52 ft at 9:00PM May 15, 2013Observed: 15.5 ft at 9:15PM May 15, 2013Observed: 15.53 ft at 9:30PM May 15, 2013Observed: 15.53 ft at 9:45PM May 15, 2013Observed: 15.53 ft at 10:00PM May 15, 2013Observed: 15.54 ft at 10:15PM May 15, 2013Observed: 15.5 ft at 10:30PM May 15, 2013Observed: 15.51 ft at 10:45PM May 15, 2013Observed: 15.53 ft at 11:00PM May 15, 2013Observed: 15.52 ft at 11:15PM May 15, 2013Observed: 15.54 ft at 11:30PM May 15, 2013Observed: 15.54 ft at 11:45PM May 15, 2013Observed: 15.53 ft at 12:00AM May 16, 2013Observed: 15.55 ft at 12:15AM May 16, 2013Observed: 15.54 ft at 12:30AM May 16, 2013Observed: 15.58 ft at 12:45AM May 16, 2013Observed: 15.57 ft at 1:00AM May 16, 2013Observed: 15.55 ft at 1:15AM May 16, 2013Observed: 15.57 ft at 1:30AM May 16, 2013Observed: 15.57 ft at 1:45AM May 16, 2013Observed: 15.57 ft at 2:00AM May 16, 2013Observed: 15.56 ft at 2:15AM May 16, 2013Observed: 15.58 ft at 2:30AM May 16, 2013Observed: 15.59 ft at 2:45AM May 16, 2013Observed: 15.58 ft at 3:00AM May 16, 2013Observed: 15.6 ft at 3:15AM May 16, 2013Observed: 15.61 ft at 3:30AM May 16, 2013Observed: 15.57 ft at 3:45AM May 16, 2013Observed: 15.57 ft at 4:00AM May 16, 2013Observed: 15.61 ft at 4:15AM May 16, 2013Observed: 15.59 ft at 4:30AM May 16, 2013Observed: 15.62 ft at 4:45AM May 16, 2013Observed: 15.6 ft at 5:00AM May 16, 2013Observed: 15.64 ft at 5:15AM May 16, 2013Observed: 15.6 ft at 5:30AM May 16, 2013Observed: 15.57 ft at 5:45AM May 16, 2013Observed: 15.6 ft at 6:00AM May 16, 2013Observed: 15.58 ft at 6:15AM May 16, 2013Observed: 15.63 ft at 6:30AM May 16, 2013Observed: 15.63 ft at 6:45AM May 16, 2013Observed: 15.61 ft at 7:00AM May 16, 2013Observed: 15.64 ft at 7:15AM May 16, 2013Observed: 15.62 ft at 7:30AM May 16, 2013Observed: 15.65 ft at 7:45AM May 16, 2013Observed: 15.64 ft at 8:00AM May 16, 2013Observed: 15.63 ft at 8:15AM May 16, 2013Observed: 15.62 ft at 8:30AM May 16, 2013Observed: 15.66 ft at 8:45AM May 16, 2013Observed: 15.66 ft at 9:00AM May 16, 2013Observed: 15.67 ft at 9:15AM May 16, 2013Observed: 15.66 ft at 9:30AM May 16, 2013Observed: 15.68 ft at 9:45AM May 16, 2013Observed: 15.67 ft at 10:00AM May 16, 2013Observed: 15.69 ft at 10:15AM May 16, 2013Observed: 15.66 ft at 10:30AM May 16, 2013Observed: 15.68 ft at 10:45AM May 16, 2013Observed: 15.65 ft at 11:00AM May 16, 2013Observed: 15.67 ft at 11:15AM May 16, 2013Observed: 15.66 ft at 11:30AM May 16, 2013Observed: 15.67 ft at 11:45AM May 16, 2013Observed: 15.67 ft at 12:00PM May 16, 2013Observed: 15.68 ft at 12:15PM May 16, 2013Observed: 15.68 ft at 12:30PM May 16, 2013Observed: 15.69 ft at 12:45PM May 16, 2013Observed: 15.68 ft at 1:00PM May 16, 2013Observed: 15.68 ft at 1:15PM May 16, 2013Observed: 15.7 ft at 1:30PM May 16, 2013Observed: 15.68 ft at 1:45PM May 16, 2013Observed: 15.7 ft at 2:00PM May 16, 2013Observed: 15.7 ft at 2:15PM May 16, 2013Observed: 15.69 ft at 2:30PM May 16, 2013Observed: 15.7 ft at 2:45PM May 16, 2013Observed: 15.71 ft at 3:00PM May 16, 2013Observed: 15.7 ft at 3:15PM May 16, 2013Observed: 15.71 ft at 3:30PM May 16, 2013Observed: 15.7 ft at 3:45PM May 16, 2013Observed: 15.71 ft at 4:00PM May 16, 2013Observed: 15.71 ft at 4:15PM May 16, 2013Observed: 15.7 ft at 4:30PM May 16, 2013Observed: 15.72 ft at 4:45PM May 16, 2013Observed: 15.73 ft at 5:00PM May 16, 2013Observed: 15.73 ft at 5:15PM May 16, 2013Observed: 15.72 ft at 5:30PM May 16, 2013Observed: 15.72 ft at 5:45PM May 16, 2013Observed: 15.73 ft at 6:00PM May 16, 2013Observed: 15.74 ft at 6:15PM May 16, 2013Observed: 15.73 ft at 6:30PM May 16, 2013Observed: 15.71 ft at 6:45PM May 16, 2013Observed: 15.74 ft at 7:00PM May 16, 2013Observed: 15.72 ft at 7:15PM May 16, 2013Observed: 15.74 ft at 7:30PM May 16, 2013Observed: 15.73 ft at 7:45PM May 16, 2013Observed: 15.73 ft at 8:00PM May 16, 2013Observed: 15.72 ft at 8:15PM May 16, 2013Observed: 15.74 ft at 8:30PM May 16, 2013Observed: 15.74 ft at 8:45PM May 16, 2013Observed: 15.73 ft at 9:00PM May 16, 2013Observed: 15.75 ft at 9:15PM May 16, 2013Observed: 15.73 ft at 9:30PM May 16, 2013Observed: 15.75 ft at 9:45PM May 16, 2013Observed: 15.74 ft at 10:00PM May 16, 2013Observed: 15.74 ft at 10:15PM May 16, 2013Observed: 15.75 ft at 10:30PM May 16, 2013Observed: 15.74 ft at 10:45PM May 16, 2013Observed: 15.75 ft at 11:00PM May 16, 2013Observed: 15.76 ft at 11:15PM May 16, 2013Observed: 15.73 ft at 11:30PM May 16, 2013Observed: 15.75 ft at 11:45PM May 16, 2013Observed: 15.77 ft at 12:00AM May 17, 2013Observed: 15.76 ft at 12:15AM May 17, 2013Observed: 15.75 ft at 12:30AM May 17, 2013Observed: 15.76 ft at 12:45AM May 17, 2013Observed: 15.77 ft at 1:00AM May 17, 2013Observed: 15.75 ft at 1:15AM May 17, 2013Observed: 15.73 ft at 1:30AM May 17, 2013Observed: 15.76 ft at 1:45AM May 17, 2013Observed: 15.76 ft at 2:00AM May 17, 2013Observed: 15.76 ft at 2:15AM May 17, 2013Observed: 15.75 ft at 2:30AM May 17, 2013Observed: 15.78 ft at 2:45AM May 17, 2013Observed: 15.77 ft at 3:00AM May 17, 2013Observed: 15.76 ft at 3:15AM May 17, 2013Observed: 15.76 ft at 3:30AM May 17, 2013Observed: 15.75 ft at 3:45AM May 17, 2013Observed: 15.77 ft at 4:00AM May 17, 2013Observed: 15.75 ft at 4:15AM May 17, 2013Observed: 15.77 ft at 4:30AM May 17, 2013Observed: 15.77 ft at 4:45AM May 17, 2013Observed: 15.77 ft at 5:00AM May 17, 2013Observed: 15.78 ft at 5:15AM May 17, 2013Observed: 15.77 ft at 5:30AM May 17, 2013Observed: 15.79 ft at 5:45AM May 17, 2013Observed: 15.8 ft at 6:00AM May 17, 2013Observed: 15.79 ft at 6:15AM May 17, 2013Observed: 15.78 ft at 6:30AM May 17, 2013Observed: 15.77 ft at 6:45AM May 17, 2013Observed: 15.78 ft at 7:00AM May 17, 2013Observed: 15.79 ft at 7:15AM May 17, 2013Observed: 15.78 ft at 7:30AM May 17, 2013Observed: 15.8 ft at 7:45AM May 17, 2013Observed: 15.79 ft at 8:00AM May 17, 2013Observed: 15.79 ft at 8:15AM May 17, 2013Observed: 15.8 ft at 8:30AM May 17, 2013Observed: 15.8 ft at 8:45AM May 17, 2013Observed: 15.8 ft at 9:00AM May 17, 2013Observed: 15.79 ft at 9:15AM May 17, 2013Observed: 15.79 ft at 9:30AM May 17, 2013Observed: 15.8 ft at 9:45AM May 17, 2013Observed: 15.79 ft at 10:00AM May 17, 2013Observed: 15.78 ft at 10:15AM May 17, 2013Observed: 15.8 ft at 10:30AM May 17, 2013Observed: 15.81 ft at 10:45AM May 17, 2013Observed: 15.83 ft at 11:00AM May 17, 2013Observed: 15.81 ft at 11:15AM May 17, 2013Observed: 15.82 ft at 11:30AM May 17, 2013Observed: 15.81 ft at 11:45AM May 17, 2013Observed: 15.81 ft at 12:00PM May 17, 2013Observed: 15.8 ft at 12:15PM May 17, 2013Observed: 15.81 ft at 12:30PM May 17, 2013Observed: 15.8 ft at 12:45PM May 17, 2013Observed: 15.83 ft at 1:00PM May 17, 2013Observed: 15.8 ft at 1:15PM May 17, 2013Observed: 15.81 ft at 1:30PM May 17, 2013Observed: 15.83 ft at 1:45PM May 17, 2013Observed: 15.82 ft at 2:00PM May 17, 2013Observed: 15.81 ft at 2:15PM May 17, 2013Observed: 15.81 ft at 2:30PM May 17, 2013Observed: 15.79 ft at 2:45PM May 17, 2013Observed: 15.81 ft at 3:00PM May 17, 2013Observed: 15.84 ft at 3:15PM May 17, 2013Observed: 15.83 ft at 3:30PM May 17, 2013Observed: 15.86 ft at 3:45PM May 17, 2013Observed: 15.88 ft at 4:00PM May 17, 2013Observed: 15.88 ft at 4:15PM May 17, 2013Observed: 15.87 ft at 4:30PM May 17, 2013Observed: 15.87 ft at 4:45PM May 17, 2013Observed: 15.87 ft at 5:00PM May 17, 2013Observed: 15.86 ft at 5:15PM May 17, 2013Observed: 15.86 ft at 5:30PM May 17, 2013Observed: 15.81 ft at 5:45PM May 17, 2013Observed: 15.82 ft at 6:00PM May 17, 2013Observed: 15.85 ft at 6:15PM May 17, 2013Observed: 15.85 ft at 6:30PM May 17, 2013Observed: 15.85 ft at 6:45PM May 17, 2013Observed: 15.83 ft at 7:00PM May 17, 2013Observed: 15.83 ft at 7:15PM May 17, 2013Observed: 15.84 ft at 7:30PM May 17, 2013Observed: 15.84 ft at 7:45PM May 17, 2013Observed: 15.81 ft at 8:00PM May 17, 2013Observed: 15.83 ft at 8:15PM May 17, 2013Observed: 15.83 ft at 8:30PM May 17, 2013Observed: 15.85 ft at 8:45PM May 17, 2013Observed: 15.84 ft at 9:00PM May 17, 2013Observed: 15.84 ft at 9:15PM May 17, 2013Observed: 15.83 ft at 9:30PM May 17, 2013Observed: 15.82 ft at 9:45PM May 17, 2013Observed: 15.82 ft at 10:00PM May 17, 2013Observed: 15.83 ft at 10:15PM May 17, 2013Observed: 15.83 ft at 10:30PM May 17, 2013Observed: 15.8 ft at 10:45PM May 17, 2013Observed: 15.81 ft at 11:00PM May 17, 2013Observed: 15.82 ft at 11:15PM May 17, 2013Observed: 15.84 ft at 11:30PM May 17, 2013Observed: 15.83 ft at 11:45PM May 17, 2013Observed: 15.81 ft at 12:00AM May 18, 2013Observed: 15.82 ft at 12:15AM May 18, 2013Observed: 15.83 ft at 12:30AM May 18, 2013Observed: 15.81 ft at 12:45AM May 18, 2013Observed: 15.85 ft at 1:00AM May 18, 2013Observed: 15.82 ft at 1:15AM May 18, 2013Observed: 15.81 ft at 1:30AM May 18, 2013Observed: 15.83 ft at 1:45AM May 18, 2013Observed: 15.85 ft at 2:00AM May 18, 2013Observed: 15.81 ft at 2:15AM May 18, 2013Observed: 15.82 ft at 2:30AM May 18, 2013Observed: 15.84 ft at 2:45AM May 18, 2013Observed: 15.87 ft at 3:00AM May 18, 2013Observed: 15.85 ft at 3:15AM May 18, 2013Observed: 15.84 ft at 3:30AM May 18, 2013Observed: 15.86 ft at 3:45AM May 18, 2013Observed: 15.86 ft at 4:00AM May 18, 2013Observed: 15.84 ft at 4:15AM May 18, 2013Observed: 15.84 ft at 4:30AM May 18, 2013Observed: 15.84 ft at 4:45AM May 18, 2013Observed: 15.87 ft at 5:00AM May 18, 2013Observed: 15.85 ft at 5:15AM May 18, 2013Observed: 15.84 ft at 5:30AM May 18, 2013Observed: 15.83 ft at 5:45AM May 18, 2013Observed: 15.86 ft at 6:00AM May 18, 2013Observed: 15.84 ft at 6:15AM May 18, 2013Observed: 15.86 ft at 6:30AM May 18, 2013Observed: 15.85 ft at 6:45AM May 18, 2013Observed: 15.84 ft at 7:00AM May 18, 2013Observed: 15.85 ft at 7:15AM May 18, 2013Observed: 15.88 ft at 7:30AM May 18, 2013Observed: 15.84 ft at 7:45AM May 18, 2013Observed: 15.87 ft at 8:00AM May 18, 2013Observed: 15.87 ft at 8:15AM May 18, 2013Observed: 15.88 ft at 8:30AM May 18, 2013Observed: 15.87 ft at 8:45AM May 18, 2013Highest Observation: 15.89 ft at 9:00AM May 18, 2013Forecast: 15.8 ft 1:00PM May 18, 2013Forecast: 15.8 ft 7:00PM May 18, 2013Forecast: 15.8 ft 1:00AM May 19, 2013Forecast: 15.8 ft 7:00AM May 19, 2013Forecast: 15.8 ft 1:00PM May 19, 2013Forecast: 15.8 ft 7:00PM May 19, 2013Forecast: 15.8 ft 1:00AM May 20, 2013Forecast: 15.8 ft 7:00AM May 20, 2013Forecast: 15.8 ft 1:00PM May 20, 2013Highest Forecast: 15.9 ft 7:00PM May 20, 2013Highest Forecast: 15.9 ft 1:00AM May 21, 2013Highest Forecast: 15.9 ft 7:00AM May 21, 2013Highest Forecast: 15.9 ft 1:00PM May 21, 2013Highest Forecast: 15.9 ft 7:00PM May 21, 2013Highest Forecast: 15.9 ft 1:00AM May 22, 2013Highest Forecast: 15.9 ft 7:00AM May 22, 2013USGS--Water Resources of the United StatesBLRL1(plotting HGIRG) Graph Created (9:34AM May 18, 2013)ObservedForecast (issued 10:26AM May 17)Latest observed value: 15.89 ft at 9:00 AM CDT 18-May-2013. Flood Stage is 25 ft
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About this graph
Tabular Data
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Datum: Not Available
Metadata
NOTE: Forecasts for the Atchafalaya River above Butte La Rose are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Krotz Springs Upstream Gauge Downstream Gauge Downstream Gauge - at Bayou Sorrel Lock
Flood Categories (in feet)
Major Flood Stage:28
Moderate Flood Stage:27
Flood Stage:25
Action Stage:23

Historical Crests
(1) 27.28 ft on 05/23/1973
(2) 27.00 ft on 03/03/1950
(3) 26.60 ft on 06/02/1961
(4) 26.40 ft on 04/29/1962
(5) 26.40 ft on 06/11/1957
Show More Historical Crests

Low Water Records
(1) 0.33 ft on 10/17/1976
(2) 0.47 ft on 01/18/1981
(3) 0.49 ft on 11/17/2005
Show More Low Water Records
Legend
Gauge Location
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
28 THE COMMUNITY OF BUTTE LAROSE WILL BE FLOODED. SEVERAL HOMES WILL SUSTAIN MAJOR DAMAGE. ALTHOUGH THE PROJECT LEVEE HEIGHT IS 33 FEET, BACK WATER FLOODING WILL IMPACT THE COMMUNITY AND EVACUATION IS STRONGLY RECOMMENDED.
27 INDUSTRIAL OPERATIONS WILL BE CURTAILED. A FEW HOMES NEAR THE RIVER WILL FLOOD. RIVER TRAFFIC NEGOTIATING SHARP TURNS WILL REMAIN DIFFICULT.
26 THE WALKWAY TO THE RIVER GAUGE WILL BE UNDER WATER AND THE GAGE WILL BE INACCESSIBLE. INDUSTRIAL STORAGE AREAS NEAR THE RIVER WILL FLOOD. UNSECURED MATERIAL AND EQUIPMENT ON PROPERTY NEAR THE RIVER WILL FLOAT OFF OR BECOME DAMAGED. RIVER TRAFFIC NEGOTIATING SHARP TURNS WILL BECOME DIFFICULT.
25 INDUSTRIAL STORAGE AREAS NEAR THE RIVER WILL FLOOD. UNSECURED MATERIAL AND EQUIPMENT ON PROPERTY NEAR THE RIVER WILL FLOAT OFF OR BECOME DAMAGED. RIVER TRAFFIC NEGOTIATING SHARP TURNS WILL BECOME DIFFICULT.
22 RIVER TRAFFIC NEGOTIATING SHARP TURNS WILL BECOME DIFFICULT. INDUSTRIAL EQUIPMENT WILL BE THREATENED AND SHOULD BE RELOCATED TO AVOID DAMAGE.
About This Location Collapse

Latitude: 30.281389° N, Longitude: 91.686667° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 25 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 0 ft 25 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:
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Hydrologic Resources Additional Resources
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
New Orleans/Baton Rouge Weather Forecast Office
62300 Airport Rd.
Slidell, LA 70460-5243
(504) 522-7330
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