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Hydrograph River at a Glance Download
Black River at Jonesville L&D Pool (ft)Flow (kcfs)Highest Observation: 40.6 ft at 4:15AM Apr 19, 2014Highest Observation: 40.6 ft at 7:00AM Apr 19, 2014Highest Observation: 40.6 ft at 4:45AM Apr 20, 2014Highest Observation: 40.6 ft at 7:00AM Apr 20, 2014Observed: 40.1 ft at 4:15AM Apr 21, 2014Observed: 40.1 ft at 7:00AM Apr 21, 2014Observed: 40 ft at 4:15AM Apr 22, 2014Observed: 40.2 ft at 7:00AM Apr 22, 2014Observed: 39.6 ft at 4:05AM Apr 23, 2014Observed: 39.6 ft at 7:00AM Apr 23, 2014Highest Forecast: 39.4 ft 1:00PM Apr 23, 2014Forecast: 39.2 ft 7:00PM Apr 23, 2014Forecast: 39 ft 1:00AM Apr 24, 2014Forecast: 38.8 ft 7:00AM Apr 24, 2014Forecast: 38.6 ft 1:00PM Apr 24, 2014Forecast: 38.4 ft 7:00PM Apr 24, 2014Forecast: 38.2 ft 1:00AM Apr 25, 2014Forecast: 38 ft 7:00AM Apr 25, 2014Forecast: 37.9 ft 1:00PM Apr 25, 2014Forecast: 37.9 ft 7:00PM Apr 25, 2014Forecast: 37.8 ft 1:00AM Apr 26, 2014Forecast: 37.8 ft 7:00AM Apr 26, 2014Forecast: 37.7 ft 1:00PM Apr 26, 2014Forecast: 37.6 ft 7:00PM Apr 26, 2014Forecast: 37.6 ft 1:00AM Apr 27, 2014Forecast: 37.5 ft 7:00AM Apr 27, 2014Forecast: 37.4 ft 1:00PM Apr 27, 2014Forecast: 37.4 ft 7:00PM Apr 27, 2014Forecast: 37.4 ft 1:00AM Apr 28, 2014Forecast: 37.3 ft 7:00AM Apr 28, 2014U.S. Army Corps of EngineersJNEL1(plotting HPIRZ) Graph Created (10:49AM Apr 23, 2014)ObservedForecast (issued 9:21AM Apr 23)Latest observed value: 39.6 ft at 7:00 AM CDT 23-Apr-2014. Flood Stage is 50 ft
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Tabular Data (UTC)
Tabular Data (CDT)
XML Data
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Datum: Not Available
NOTE: Forecasts for the Black River at Jonesville L&D are issued routinely year-round.
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Downstream Gauge Downstream Gauge - at Acme
Flood Categories (in feet)
Major Flood Stage:60
Moderate Flood Stage:52
Flood Stage:50
Action Stage:49

Historical Crests
(1) 64.50 ft on 05/03/1927
(2) 59.65 ft on 05/17/1973
(3) 55.30 ft on 05/14/1991
(4) 55.01 ft on 05/16/1975
(5) 53.60 ft on 02/06/1974
(6) 53.50 ft on 01/09/1983
(7) 53.50 ft on 04/29/1979
(8) 52.90 ft on 05/30/1983
(9) 51.20 ft on 03/22/1997
(10) 50.30 ft on 06/11/1990
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Low Water Records
(1) 5.60 ft on 08/17/1977
(2) 7.60 ft on 10/22/1992
(3) 7.90 ft on 10/06/1994
Show More Low Water Records
Zoom Level: 16
Gauge Location
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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If you notice any errors in the below information, please contact our Webmaster
67.09 Little River recreation area is inaccessible.
66 Jonesville Lock and Dam control house floods to second floor.
61.1 Jonesville landing recreation area is inaccessible.
61 Harrisonburg recreation area is inaccessible.
59 Clayton recreation area inaccessible.
58 Jonesville Lock and Dam recreation area inaccessible.
52.7 Fort Necessity recreation area inaccessible.
52 Backwater flooding on right bank threatens residences.
51.4 Columbia recreation is inaccessible.
50 Highway 124 south near the Town of Larto starts to flood. Backwater flooding begins in unprotected areas on right bank.
42 Flow tops lock.
40 Access road to lock begins to flood on the riverside of levee.
39.5 Locking ceases.
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Latitude: 31.482500° N, Longitude: 91.859167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 50 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 0 ft 50 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:

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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
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Jackson Weather Forecast Office
234 Weather Service Dr.
Jackson, MS 39232
(601) 936-2189
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Page last modified: 8-Apr-2014 7:35 AM
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