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Hydrograph River at a Glance Download
Bayou Nezpique at Basile Stage (ft)Flow (kcfs)Highest Observation: 2.83 ft at 5:30AM Dec 05, 2020Highest Observation: 2.83 ft at 5:45AM Dec 05, 2020Highest Observation: 2.83 ft at 6:00AM Dec 05, 2020Highest Observation: 2.83 ft at 6:15AM Dec 05, 2020Highest Forecast: 9.3 ft 12:00PM Dec 05, 2020Forecast: 8.8 ft 6:00PM Dec 05, 2020Forecast: 8.2 ft 12:00AM Dec 06, 2020Forecast: 7.5 ft 6:00AM Dec 06, 2020Forecast: 7.1 ft 12:00PM Dec 06, 2020Forecast: 6.8 ft 6:00PM Dec 06, 2020Forecast: 6.3 ft 12:00AM Dec 07, 2020Forecast: 6.1 ft 6:00AM Dec 07, 2020Forecast: 5.8 ft 12:00PM Dec 07, 2020Forecast: 5.5 ft 6:00PM Dec 07, 2020Forecast: 5.2 ft 12:00AM Dec 08, 2020Forecast: 5.1 ft 6:00AM Dec 08, 2020Forecast: 5 ft 12:00PM Dec 08, 2020Forecast: 4.8 ft 6:00PM Dec 08, 2020Forecast: 4.6 ft 12:00AM Dec 09, 2020Forecast: 4.5 ft 6:00AM Dec 09, 2020USGS--Water Resources of the United StatesBSLL1(plotting HGIRG) Graph Created (6:53AM Dec 5, 2020)ObservedForecast (issued 8:19AM Dec 4)Latest observed value: 2.83 ft at 6:15 AM CST 5-Dec-2020. Flood Stage is 22 ft
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Tabular Data (CST)
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Datum: NAVD88
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Bayou Nezpique at Basile are issued routinely year-round.

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Downstream Gauge Downstream Gauge - at Mermentau
Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 24
Flood Stage: 22
Action Stage: 22
Low Stage (in feet): 0

Historic Crests
(1) 34.39 ft on 05/20/1953
(2) 31.74 ft on 02/07/1955
(3) 31.08 ft on 08/11/1940
(4) 30.65 ft on 11/01/1985
(5) 29.59 ft on 04/14/1995
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(P): Preliminary values subject to further review.

Recent Crests
(1) 25.66 ft on 10/14/2020 (P)
(2) 23.08 ft on 09/02/2017 (P)
(3) 28.40 ft on 05/05/2017 (P)
(4) 22.25 ft on 08/16/2016 (P)
(5) 26.06 ft on 01/13/2013
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(P): Preliminary values subject to further review.

Low Water Records
(1) 0.98 ft on 10/19/1988
(2) 1.00 ft on 06/28/1948
(3) 1.08 ft on 10/21/1973
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For more information on your flood risk go to

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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.
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34.5 River at its flood of record.
28 Major flood threat downstream including residential flooding near jennings, mermentau, silverwood, and lake arthur.
27 Flooding occurs on portions of Riverside Road north of Saint Jules Road and the road is subject to closure.
25.5 Moderate flood threat downstream including a few residences near jennings, mermentau and silverwood. Operations at silverwood shipyard could be affect. Several roads in the area become flooded, including la 97 north of jennings floods, which is subject to being closed.
24 Moderate flood threat downstream including a few residences near jennings, mermentau, and silverwood. Operations at silverwood shipyard could be affected.
22 Minor agricultural flood damage will occur.
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Latitude: 30.480556° N, Longitude: 92.631667° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 22 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 3.58 25.58 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  

Current/Historical Observations:

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NWS Information
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Lake Charles Weather Forecast Office
500 Airport Boulevard
Lake Charles, LA 70607
(337) 477-5285
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Page last modified: 2-Nov-2020 7:29 PM
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