Skip Navigation Link  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

Hydrograph River at a Glance Download
Atchafalaya River at Melville Stage (ft)Observed: 17.64 ft at 2:00AM Feb 22, 2018Observed: 17.71 ft at 3:00AM Feb 22, 2018Observed: 17.85 ft at 4:00AM Feb 22, 2018Observed: 17.97 ft at 5:00AM Feb 22, 2018Observed: 18.08 ft at 6:00AM Feb 22, 2018Observed: 18.19 ft at 7:00AM Feb 22, 2018Observed: 18.27 ft at 8:00AM Feb 22, 2018Observed: 18.37 ft at 9:00AM Feb 22, 2018Observed: 18.29 ft at 10:00AM Feb 22, 2018Observed: 18.35 ft at 11:00AM Feb 22, 2018Observed: 18.34 ft at 12:00PM Feb 22, 2018Observed: 18.41 ft at 1:00PM Feb 22, 2018Observed: 18.61 ft at 2:00PM Feb 22, 2018Observed: 18.69 ft at 3:00PM Feb 22, 2018Observed: 18.69 ft at 4:00PM Feb 22, 2018Observed: 18.71 ft at 5:00PM Feb 22, 2018Observed: 18.84 ft at 6:00PM Feb 22, 2018Observed: 18.96 ft at 7:00PM Feb 22, 2018Observed: 19.02 ft at 8:00PM Feb 22, 2018Observed: 19.13 ft at 9:00PM Feb 22, 2018Observed: 19.19 ft at 10:00PM Feb 22, 2018Observed: 19.28 ft at 11:00PM Feb 22, 2018Observed: 19.36 ft at 12:00AM Feb 23, 2018Observed: 19.45 ft at 1:00AM Feb 23, 2018Observed: 19.49 ft at 2:00AM Feb 23, 2018Observed: 19.57 ft at 3:00AM Feb 23, 2018Observed: 19.62 ft at 4:00AM Feb 23, 2018Observed: 19.68 ft at 5:00AM Feb 23, 2018Observed: 19.77 ft at 6:00AM Feb 23, 2018Observed: 19.85 ft at 7:00AM Feb 23, 2018Observed: 19.86 ft at 8:00AM Feb 23, 2018Observed: 19.91 ft at 9:00AM Feb 23, 2018Observed: 19.97 ft at 10:00AM Feb 23, 2018Observed: 19.96 ft at 11:00AM Feb 23, 2018Observed: 19.9 ft at 12:00PM Feb 23, 2018Observed: 19.92 ft at 1:00PM Feb 23, 2018Observed: 19.73 ft at 2:00PM Feb 23, 2018Observed: 19.7 ft at 3:00PM Feb 23, 2018Observed: 19.65 ft at 4:00PM Feb 23, 2018Observed: 19.63 ft at 5:00PM Feb 23, 2018Observed: 19.65 ft at 6:00PM Feb 23, 2018Observed: 19.64 ft at 7:00PM Feb 23, 2018Observed: 19.65 ft at 8:00PM Feb 23, 2018Observed: 19.65 ft at 9:00PM Feb 23, 2018Observed: 19.69 ft at 10:00PM Feb 23, 2018Observed: 19.71 ft at 11:00PM Feb 23, 2018Observed: 19.73 ft at 12:00AM Feb 24, 2018Observed: 19.76 ft at 1:00AM Feb 24, 2018Observed: 19.74 ft at 2:00AM Feb 24, 2018Observed: 19.79 ft at 3:00AM Feb 24, 2018Observed: 19.83 ft at 4:00AM Feb 24, 2018Observed: 19.84 ft at 5:00AM Feb 24, 2018Observed: 19.87 ft at 6:00AM Feb 24, 2018Observed: 19.91 ft at 7:00AM Feb 24, 2018Observed: 19.93 ft at 8:00AM Feb 24, 2018Observed: 19.83 ft at 9:00AM Feb 24, 2018Observed: 19.81 ft at 10:00AM Feb 24, 2018Observed: 19.79 ft at 11:00AM Feb 24, 2018Observed: 19.83 ft at 12:00PM Feb 24, 2018Observed: 19.85 ft at 1:00PM Feb 24, 2018Observed: 19.8 ft at 2:00PM Feb 24, 2018Observed: 19.91 ft at 3:00PM Feb 24, 2018Observed: 19.73 ft at 4:00PM Feb 24, 2018Observed: 19.89 ft at 5:00PM Feb 24, 2018Observed: 19.84 ft at 6:00PM Feb 24, 2018Observed: 19.85 ft at 7:00PM Feb 24, 2018Observed: 19.94 ft at 8:00PM Feb 24, 2018Observed: 19.88 ft at 9:00PM Feb 24, 2018Observed: 19.95 ft at 10:00PM Feb 24, 2018Highest Observation: 19.99 ft at 11:00PM Feb 24, 2018Highest Observation: 19.99 ft at 12:00AM Feb 25, 2018Forecast: 20.2 ft 6:00AM Feb 25, 2018Forecast: 20.4 ft 12:00PM Feb 25, 2018Forecast: 20.6 ft 6:00PM Feb 25, 2018Forecast: 20.9 ft 12:00AM Feb 26, 2018Forecast: 21.1 ft 6:00AM Feb 26, 2018Forecast: 21.3 ft 12:00PM Feb 26, 2018Forecast: 21.5 ft 6:00PM Feb 26, 2018Forecast: 21.7 ft 12:00AM Feb 27, 2018Forecast: 21.9 ft 6:00AM Feb 27, 2018Forecast: 22.1 ft 12:00PM Feb 27, 2018Forecast: 22.2 ft 6:00PM Feb 27, 2018Forecast: 22.4 ft 12:00AM Feb 28, 2018Forecast: 22.7 ft 6:00AM Feb 28, 2018Forecast: 22.9 ft 12:00PM Feb 28, 2018Forecast: 23.1 ft 6:00PM Feb 28, 2018Forecast: 23.3 ft 12:00AM Mar 01, 2018Forecast: 23.6 ft 6:00AM Mar 01, 2018Highest Forecast: 23.9 ft 12:00PM Mar 01, 2018MLVL1(plotting HGIRG) Graph Created (1:52AM Feb 25, 2018)ObservedForecast (issued 12:08PM Feb 24)Latest observed value: 19.99 ft at 12:00 AM CST 25-Feb-2018. Flood Stage is 34 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: NGVD29
NOTE: Forecasts for the Atchafalaya River at Melville are issued routinely year-round.
Return to Area Map
Upstream Gauge - at Simmesport Upstream Gauge Downstream Gauge Downstream Gauge - at Krotz Springs
Flood Categories (in feet)
Major Flood Stage: 50
Moderate Flood Stage: 45
Flood Stage: 34
Action Stage: 33
Low Stage (in feet): 0

Historic Crests
(1) 46.98 ft on 05/14/1927
(2) 46.08 ft on 05/14/1922
(3) 45.88 ft on 04/25/1945
(4) 45.00 ft on 03/05/1950
(5) 44.98 ft on 03/02/1937
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 3.91 ft on 10/10/2013
(2) 25.31 ft on 05/22/2013
(3) 21.87 ft on 01/02/2012
(4) 35.69 ft on 05/24/2011
(5) 25.44 ft on 02/10/2010
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.80 ft on 01/19/1981
(2) 0.88 ft on 06/23/1964
(3) 0.90 ft on 10/18/1976
Show More Low Water Records
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
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
If you notice any errors in the below information, please contact our Webmaster
52.5 The water level will be near the top of the levee which is 53 feet at its lowest point.
50 Water will reach the base of the Texas Pacific railroad bridge girders.
48 The water level will reach the grade level of the lowest elevation on the back side of the Melville ring levee.
45 Considerable flooding occurs.
41 Flooding will begin on the river side of the river levee and on the river side of the Melville protection ring levee. Increased river current will make navigation more difficult and increase the need for strict traffic regulation.
36 Flooding of structures on the unprotected side of the levee begins along Trestle Street and River Bank Road in Melville.
34 Lowest structures on the unprotected side of the levee begin to flood. Flooding is more extensive just south of melville.
33 Action stage.
30 Increased current in the atchafalaya main channel will cause minor navigation problems for large craft, but hazardous conditions for smaller river craft. The average elevation within the protection of the melville ring levee is 31 feet.
25 Flooding will begin on the river side of the atchafalaya river levee and the melville ring levee which protect the city to a river stage of about 50 feet.
About This Location Collapse

Latitude: 30.690556° N, Longitude: 91.736111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 34 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
NAVD88 -0.22 ft 33.78 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 0 ft 34 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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
Ask Questions/Webmaster
Page last modified: 21-Dec-2016 10:37 PM
Privacy Policy
About Us
Career Opportunities