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Hydrograph River at a Glance Download
Black River at Jonesville L&D Pool (ft)Flow (kcfs)Highest Observation: 43.9 ft at 5:00AM May 20, 2020Observed: 43.6 ft at 5:00AM May 21, 2020Observed: 43.3 ft at 5:00AM May 22, 2020Observed: 43.4 ft at 5:00AM May 23, 2020Observed: 43.4 ft at 5:00AM May 24, 2020Observed: 43.1 ft at 5:00AM May 25, 2020Observed: 42.8 ft at 5:00AM May 26, 2020Highest Forecast: 42.5 ft 1:00AM May 27, 2020Forecast: 42.4 ft 7:00AM May 27, 2020Forecast: 42.3 ft 1:00PM May 27, 2020Forecast: 42.3 ft 7:00PM May 27, 2020Forecast: 42.2 ft 1:00AM May 28, 2020Forecast: 42.1 ft 7:00AM May 28, 2020Forecast: 42.1 ft 1:00PM May 28, 2020Forecast: 42 ft 7:00PM May 28, 2020Forecast: 42 ft 1:00AM May 29, 2020Forecast: 41.9 ft 7:00AM May 29, 2020Forecast: 41.9 ft 1:00PM May 29, 2020Forecast: 41.9 ft 7:00PM May 29, 2020Forecast: 41.8 ft 1:00AM May 30, 2020Forecast: 41.8 ft 7:00AM May 30, 2020Forecast: 41.7 ft 1:00PM May 30, 2020Forecast: 41.7 ft 7:00PM May 30, 2020Forecast: 41.7 ft 1:00AM May 31, 2020Forecast: 41.6 ft 7:00AM May 31, 2020U.S. Army Corps of EngineersJNEL1(plotting HPIRZ) Graph Created (10:37PM May 26, 2020)ObservedForecast (issued 8:29AM May 26)Latest observed value: 42.8 ft at 5:00 AM CDT 26-May-2020. Flood Stage is 50 ft
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Datum: Not Available
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Black River at Jonesville L&D are issued routinely year-round.

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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Acme
Flood Categories (in feet)
Major Flood Stage: 60
Moderate Flood Stage: 52
Flood Stage: 50
Action Stage: 49
Low Stage (in feet): -9999

Historic 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) 54.50 ft on 05/22/2019
(6) 53.70 ft on 03/22/2016
(7) 53.60 ft on 02/06/1974
(8) 53.50 ft on 04/29/1979
(9) 53.50 ft on 01/09/1983
(10) 52.90 ft on 05/30/1983
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(P): Preliminary values subject to further review.

Recent Crests
(1) 54.50 ft on 05/22/2019
(2) 50.40 ft on 03/17/2019
(3) 52.80 ft on 03/19/2018
(4) 53.70 ft on 03/22/2016
(5) 49.60 ft on 01/24/2016
(6) 48.75 ft on 05/26/2011
(7) 48.12 ft on 05/30/2009
(8) 48.04 ft on 04/28/2008
(9) 51.30 ft on 03/15/2001
(10) 51.20 ft on 03/22/1997
Show More Recent Crests

(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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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 The Little River Recreation Area is inaccessible.
66 The second floor of the control house at Jonesville Lock and Dam is flooded.
61.1 Jonesville Landing Recreation Area is inaccessible.
61 The Harrisonburg Recreation Area is inaccessible.
59 The Clayton Recreation Area is inaccessible.
58 The Jonesville Lock and Dam Recreation Area is inaccessible.
52.7 The Fort Necessity Recreation Area is inaccessible.
52 Backwater flooding on right bank threatens residences.
51.4 The Columbia Recreation Area is inaccessible.
50 Highway 124 south near the town of Larto starts to flood. Backwater flooding begins in unprotected areas on right bank.
42 Water begins to top the lock.
40 Access Road to lock begins to flood on the riverside of levee.
39.5 Locking operations ceases at the lock and dam.
About This Location Collapse

Latitude: 31.482800° N, Longitude: 91.860400° 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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234 Weather Service Dr.
Jackson, MS 39232
(601) 936-2189
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Page last modified: 1-Mar-2019 12:34 AM
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