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Hydrograph River at a Glance Download
Biloxi River near Lyman Stage (ft)Observed: 2.1 ft at 10:00AM Aug 22, 2016Highest Observation: 8.1 ft at 9:00AM Aug 25, 2016Highest Forecast: 8.5 ft 1:00PM Aug 25, 2016Forecast: 8.2 ft 7:00PM Aug 25, 2016Forecast: 7.6 ft 1:00AM Aug 26, 2016Forecast: 6.5 ft 7:00AM Aug 26, 2016Forecast: 5.1 ft 1:00PM Aug 26, 2016Forecast: 3.8 ft 7:00PM Aug 26, 2016Forecast: 4.4 ft 1:00AM Aug 27, 2016Forecast: 5.1 ft 7:00AM Aug 27, 2016Forecast: 4.1 ft 1:00PM Aug 27, 2016Forecast: 3.2 ft 7:00PM Aug 27, 2016Forecast: 3.8 ft 1:00AM Aug 28, 2016Forecast: 4.6 ft 7:00AM Aug 28, 2016Forecast: 3.7 ft 1:00PM Aug 28, 2016Forecast: 2.9 ft 7:00PM Aug 28, 2016Forecast: 3.3 ft 1:00AM Aug 29, 2016Forecast: 3.9 ft 7:00AM Aug 29, 2016Forecast: 3.4 ft 1:00PM Aug 29, 2016Forecast: 2.6 ft 7:00PM Aug 29, 2016Forecast: 3.2 ft 1:00AM Aug 30, 2016Forecast: 3.7 ft 7:00AM Aug 30, 2016LYMM6(plotting HGIRZ) Graph Created (9:52AM Aug 25, 2016)ObservedForecast (issued 9:20AM Aug 25)Latest observed value: 8.1 ft at 9:00 AM CDT 25-Aug-2016. Flood Stage is 12 ft
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Tabular Data (UTC)
Tabular Data (CDT)
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Datum: Not Available
NOTE: Forecasts for the Biloxi River near Lyman are issued routinely year-round.
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Upstream Gauge - near Wortham Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 18
Moderate Flood Stage: 16
Flood Stage: 12
Action Stage: 10
Low Stage (in feet): 0

Historic Crests
(1) 20.95 ft on 05/10/1995
(2) 18.50 ft on 09/01/1957
(3) 18.00 ft on 08/30/2012
(4) 17.50 ft on 09/27/2002
(5) 16.78 ft on 09/24/1985
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(P): Preliminary values subject to further review.

Recent Crests
(1) 14.00 ft on 08/12/2016
(2) 15.70 ft on 05/18/2015
(3) 15.70 ft on 05/17/2015
(4) 18.00 ft on 08/30/2012
(5) 13.60 ft on 10/29/2002
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(P): Preliminary values subject to further review.

Low Water Records
(1) 1.00 ft on 08/30/2000

For more information on your flood risk go to

Zoom Level:16
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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
21 Major flooding will occur along the river. Several bridges and roads may be washed out. Evacuation of Biloxi River Estates, Retreat Village, Oakridge Manor, Rolling Acres, and Riverland Village is strongly recommended.
17 There will be major flooding on Loraine Road near the Lorraine Road bridge. Major roads will be closed including Lamey Bridge Road and Old Highway 49 at the Little Biloxi River. Major flooding will occur in Retreat and Riverland Village Subdivisions.
16 Major flooding will occur in Retreat and Riverland Village Subdivisions at the 16 foot stage. Homes on lower Fisherman Trail will remain flooded and lower River Road will be impassable.
14 At 14 feet homes on lower Fisherman Trail will begin to flood and lower River Road will be impassable. Driving on Loraine Road will be hazardous due to the high water.
13 Loraine Road will begin to flood at 13 feet making driving hazardous. River Road near Three Rivers Road bridge will begin to flood.
12 River Road near Three Rivers Road bridge will begin to flood.
9 The river will be bankfull at the Three Rivers Road bridge.
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Latitude: 30.488333° N, Longitude: 89.035833° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 12 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 ft 12 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  
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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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Page last modified: 13-Aug-2015 1:56 AM
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