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Over 200 USGS real-time streamgages used to support NWS river forecasts and warnings are at risk of being discontinued. Click here for more information from the USGS...
Weather Forecast Office Jackson, MS Lower Mississippi River Forecast Center
Flood Advisory
View all valid statements/warnings
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Black River at Jonesville L&D Pool (ft)Flow (kcfs)Observed: 34 ft at 6:00AM Jun 15, 2013Observed: 34.3 ft at 7:00AM Jun 15, 2013Observed: 34.3 ft at 7:00AM Jun 17, 2013Highest Observation: 34.6 ft at 7:00AM Jun 18, 2013Observed: 34.5 ft at 7:00AM Jun 19, 2013Highest Forecast: 34.5 ft 1:00AM Jun 20, 2013Highest Forecast: 34.5 ft 7:00AM Jun 20, 2013Highest Forecast: 34.5 ft 1:00PM Jun 20, 2013Highest Forecast: 34.5 ft 7:00PM Jun 20, 2013Highest Forecast: 34.5 ft 1:00AM Jun 21, 2013Highest Forecast: 34.5 ft 7:00AM Jun 21, 2013Highest Forecast: 34.5 ft 1:00PM Jun 21, 2013Highest Forecast: 34.5 ft 7:00PM Jun 21, 2013Highest Forecast: 34.5 ft 1:00AM Jun 22, 2013Highest Forecast: 34.5 ft 7:00AM Jun 22, 2013Highest Forecast: 34.5 ft 1:00PM Jun 22, 2013Highest Forecast: 34.5 ft 7:00PM Jun 22, 2013Highest Forecast: 34.5 ft 1:00AM Jun 23, 2013Highest Forecast: 34.5 ft 7:00AM Jun 23, 2013Highest Forecast: 34.5 ft 1:00PM Jun 23, 2013Highest Forecast: 34.5 ft 7:00PM Jun 23, 2013Highest Forecast: 34.5 ft 1:00AM Jun 24, 2013Highest Forecast: 34.5 ft 7:00AM Jun 24, 2013U.S. Army Corps of EngineersJNEL1(plotting HPIRZ) Graph Created (11:44PM Jun 19, 2013)ObservedForecast (issued 9:04AM Jun 19)Latest observed value: 34.5 ft at 7:00 AM CDT 19-Jun-2013. Flood Stage is 50 ft
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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
Show More Historical Crests

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
Legend
Gauge Location
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.
Flood Impacts & Photos Collapse
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.
About This Location Collapse

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  

Other Data Sources:
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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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
Jackson Weather Forecast Office
234 Weather Service Dr.
Jackson, MS 39232
(601) 936-2189
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Page last modified: 13-Mar-2013 6:27 PM 		Disclaimer
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