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Hydrograph River at a Glance Download
Pearl River at Ross Barnett Reservoir Total Discharge (kcfs)Highest Forecast: 0.44 kcfs 6:00AM Dec 11, 2017Forecast: 0.41 kcfs 12:00PM Dec 11, 2017Forecast: 0.39 kcfs 6:00PM Dec 11, 2017Forecast: 0.38 kcfs 12:00AM Dec 12, 2017Forecast: 0.36 kcfs 6:00AM Dec 12, 2017Forecast: 0.34 kcfs 12:00PM Dec 12, 2017Forecast: 0.33 kcfs 6:00PM Dec 12, 2017Forecast: 0.32 kcfs 12:00AM Dec 13, 2017Forecast: 0.31 kcfs 6:00AM Dec 13, 2017Forecast: 0.3 kcfs 12:00PM Dec 13, 2017Forecast: 0.29 kcfs 6:00PM Dec 13, 2017Forecast: 0.28 kcfs 12:00AM Dec 14, 2017Forecast: 0.28 kcfs 6:00AM Dec 14, 2017Forecast: 0.27 kcfs 12:00PM Dec 14, 2017Forecast: 0.27 kcfs 6:00PM Dec 14, 2017Forecast: 0.26 kcfs 12:00AM Dec 15, 2017Forecast: 0.26 kcfs 6:00AM Dec 15, 2017U.S. Geological SurveyJSNM6(plotting QTIRZ) Graph Created (3:21AM Dec 11, 2017)Forecast (issued 7:59AM Dec 10)
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Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: Not Available
NOTE: Forecasts for the Pearl River at Ross Barnett Reservoir are issued routinely year-round.
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Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Jackson
Flood Categories (in KCFS)
Not Available

Historic Crests

(P): Preliminary values subject to further review.

Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

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Gauge LocationGauge Map Marker
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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Latitude: 32.397800° N, Longitude: 90.064700° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS flow Not Available Not Available 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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 0 ft 299 ft  
Additional Information Collapse
INFORMATION RELATING TO THE ROSS BARNETT GRAPH: The Blue line to the left of the vertical dash line is Observed Ross Barnett Discharge from gates. The Purple line to the right of the vertical dash line is the forecast inflows into the lake. Multiply kcfs value by 1000 to get cubic feet per second(cfs).
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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
National Weather Service
Jackson Weather Forecast Office
234 Weather Service Dr.
Jackson, MS 39232
(601) 936-2189
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Page last modified: 21-Dec-2016 5:20 PM
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