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Hydrograph River at a Glance Download
Black River at Jonesville L&D Pool (ft)Flow (kcfs)Highest Observation: 34 ft at 5:00AM Jul 25, 2014Highest Observation: 34 ft at 5:00AM Jul 26, 2014Highest Observation: 34 ft at 7:00AM Jul 26, 2014Highest Observation: 34 ft at 5:00AM Jul 27, 2014Highest Observation: 34 ft at 7:00AM Jul 27, 2014Highest Observation: 34 ft at 5:00AM Jul 28, 2014Highest Observation: 34 ft at 7:00AM Jul 28, 2014Highest Observation: 34 ft at 4:30AM Jul 29, 2014Highest Forecast: 34 ft 1:00PM Jul 29, 2014Highest Forecast: 34 ft 7:00PM Jul 29, 2014Highest Forecast: 34 ft 1:00AM Jul 30, 2014Highest Forecast: 34 ft 7:00AM Jul 30, 2014Highest Forecast: 34 ft 1:00PM Jul 30, 2014Highest Forecast: 34 ft 7:00PM Jul 30, 2014Highest Forecast: 34 ft 1:00AM Jul 31, 2014Highest Forecast: 34 ft 7:00AM Jul 31, 2014Highest Forecast: 34 ft 1:00PM Jul 31, 2014Highest Forecast: 34 ft 7:00PM Jul 31, 2014Highest Forecast: 34 ft 1:00AM Aug 01, 2014Highest Forecast: 34 ft 7:00AM Aug 01, 2014Highest Forecast: 34 ft 1:00PM Aug 01, 2014Highest Forecast: 34 ft 7:00PM Aug 01, 2014Highest Forecast: 34 ft 1:00AM Aug 02, 2014Highest Forecast: 34 ft 7:00AM Aug 02, 2014U.S. Army Corps of EngineersJNEL1(plotting HPIRZ) Graph Created (7:34AM Jul 29, 2014)ObservedForecast (issued 10:11AM Jul 28)Latest observed value: 34 ft at 4:30 AM CDT 29-Jul-2014. Flood Stage is 50 ft
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Tabular Data (UTC)
Tabular Data (CDT)
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Datum: Not Available
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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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(P): Preliminary values subject to further review.

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
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Zoom Level:16
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Gauge LocationGauge Map Marker
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.
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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)
Elevation
(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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234 Weather Service Dr.
Jackson, MS 39232
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Page last modified: 16-Jul-2014 2:07 AM
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