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Hydrograph River at a Glance Download
Lake Pontchartrain at Mid-Lake Stage (ft)Observed: 0 ft at 11:15PM Feb 21, 2021Observed: 0.01 ft at 11:30PM Feb 21, 2021Observed: 0.03 ft at 11:45PM Feb 21, 2021Observed: 0.04 ft at 12:00AM Feb 22, 2021Observed: 0.07 ft at 12:15AM Feb 22, 2021Observed: 0.07 ft at 12:30AM Feb 22, 2021Observed: 0.09 ft at 12:45AM Feb 22, 2021Observed: 0.13 ft at 1:00AM Feb 22, 2021Observed: 0.13 ft at 1:15AM Feb 22, 2021Observed: 0.15 ft at 1:30AM Feb 22, 2021Observed: 0.18 ft at 1:45AM Feb 22, 2021Observed: 0.19 ft at 2:00AM Feb 22, 2021Observed: 0.21 ft at 2:15AM Feb 22, 2021Observed: 0.22 ft at 2:30AM Feb 22, 2021Observed: 0.2 ft at 2:45AM Feb 22, 2021Observed: 0.18 ft at 3:00AM Feb 22, 2021Observed: 0.21 ft at 3:15AM Feb 22, 2021Observed: 0.23 ft at 3:30AM Feb 22, 2021Observed: 0.24 ft at 3:45AM Feb 22, 2021Observed: 0.23 ft at 4:00AM Feb 22, 2021Observed: 0.22 ft at 4:15AM Feb 22, 2021Observed: 0.2 ft at 4:30AM Feb 22, 2021Observed: 0.2 ft at 4:45AM Feb 22, 2021Observed: 0.21 ft at 5:00AM Feb 22, 2021Observed: 0.21 ft at 5:15AM Feb 22, 2021Observed: 0.2 ft at 5:30AM Feb 22, 2021Observed: 0.18 ft at 5:45AM Feb 22, 2021Observed: 0.18 ft at 6:00AM Feb 22, 2021Observed: 0.16 ft at 6:15AM Feb 22, 2021Observed: 0.12 ft at 6:30AM Feb 22, 2021Observed: 0.13 ft at 6:45AM Feb 22, 2021Observed: 0.11 ft at 7:00AM Feb 22, 2021Observed: 0.1 ft at 7:15AM Feb 22, 2021Observed: 0.06 ft at 7:30AM Feb 22, 2021Observed: 0.04 ft at 7:45AM Feb 22, 2021Observed: 0.05 ft at 8:00AM Feb 22, 2021Observed: 0.04 ft at 8:15AM Feb 22, 2021Observed: 0.02 ft at 8:30AM Feb 22, 2021Observed: 0 ft at 8:45AM Feb 22, 2021Observed: 0.01 ft at 10:15PM Feb 22, 2021Observed: 0.02 ft at 10:30PM Feb 22, 2021Observed: 0.03 ft at 10:45PM Feb 22, 2021Observed: 0.03 ft at 11:00PM Feb 22, 2021Observed: 0.07 ft at 11:15PM Feb 22, 2021Observed: 0.09 ft at 11:30PM Feb 22, 2021Observed: 0.09 ft at 11:45PM Feb 22, 2021Observed: 0.11 ft at 12:00AM Feb 23, 2021Observed: 0.12 ft at 12:15AM Feb 23, 2021Observed: 0.14 ft at 12:30AM Feb 23, 2021Observed: 0.13 ft at 12:45AM Feb 23, 2021Observed: 0.16 ft at 1:00AM Feb 23, 2021Observed: 0.17 ft at 1:15AM Feb 23, 2021Observed: 0.17 ft at 1:30AM Feb 23, 2021Observed: 0.18 ft at 1:45AM Feb 23, 2021Observed: 0.19 ft at 2:00AM Feb 23, 2021Observed: 0.2 ft at 2:15AM Feb 23, 2021Observed: 0.2 ft at 2:30AM Feb 23, 2021Observed: 0.2 ft at 2:45AM Feb 23, 2021Observed: 0.21 ft at 3:00AM Feb 23, 2021Observed: 0.21 ft at 3:15AM Feb 23, 2021Observed: 0.2 ft at 3:30AM Feb 23, 2021Observed: 0.19 ft at 3:45AM Feb 23, 2021Observed: 0.19 ft at 4:00AM Feb 23, 2021Observed: 0.19 ft at 4:15AM Feb 23, 2021Observed: 0.16 ft at 4:30AM Feb 23, 2021Observed: 0.15 ft at 4:45AM Feb 23, 2021Observed: 0.14 ft at 5:00AM Feb 23, 2021Observed: 0.12 ft at 5:15AM Feb 23, 2021Observed: 0.12 ft at 5:30AM Feb 23, 2021Observed: 0.13 ft at 5:45AM Feb 23, 2021Observed: 0.13 ft at 6:00AM Feb 23, 2021Observed: 0.1 ft at 6:15AM Feb 23, 2021Observed: 0.08 ft at 6:30AM Feb 23, 2021Observed: 0.07 ft at 6:45AM Feb 23, 2021Observed: 0.06 ft at 7:00AM Feb 23, 2021Observed: 0.05 ft at 7:15AM Feb 23, 2021Observed: 0.02 ft at 7:30AM Feb 23, 2021Observed: 0.01 ft at 7:45AM Feb 23, 2021Observed: 0 ft at 8:00AM Feb 23, 2021Observed: 0 ft at 9:30PM Feb 23, 2021Observed: 0.03 ft at 9:45PM Feb 23, 2021Observed: 0.02 ft at 10:00PM Feb 23, 2021Observed: 0.04 ft at 10:15PM Feb 23, 2021Observed: 0.06 ft at 10:30PM Feb 23, 2021Observed: 0.07 ft at 10:45PM Feb 23, 2021Observed: 0.08 ft at 11:00PM Feb 23, 2021Observed: 0.13 ft at 11:15PM Feb 23, 2021Observed: 0.13 ft at 11:30PM Feb 23, 2021Observed: 0.13 ft at 11:45PM Feb 23, 2021Observed: 0.15 ft at 12:00AM Feb 24, 2021Observed: 0.18 ft at 12:15AM Feb 24, 2021Observed: 0.18 ft at 12:30AM Feb 24, 2021Observed: 0.2 ft at 12:45AM Feb 24, 2021Observed: 0.22 ft at 1:00AM Feb 24, 2021Observed: 0.24 ft at 1:15AM Feb 24, 2021Observed: 0.26 ft at 1:30AM Feb 24, 2021Observed: 0.27 ft at 1:45AM Feb 24, 2021Observed: 0.27 ft at 2:00AM Feb 24, 2021Observed: 0.28 ft at 2:15AM Feb 24, 2021Observed: 0.28 ft at 2:30AM Feb 24, 2021Observed: 0.29 ft at 2:45AM Feb 24, 2021Observed: 0.3 ft at 3:00AM Feb 24, 2021Observed: 0.3 ft at 3:15AM Feb 24, 2021Observed: 0.3 ft at 3:30AM Feb 24, 2021Highest Observation: 0.31 ft at 3:45AM Feb 24, 2021Observed: 0.3 ft at 4:00AM Feb 24, 2021Highest Observation: 0.31 ft at 4:15AM Feb 24, 2021Observed: 0.3 ft at 4:30AM Feb 24, 2021Observed: 0.29 ft at 4:45AM Feb 24, 2021Observed: 0.27 ft at 5:00AM Feb 24, 2021Observed: 0.26 ft at 5:15AM Feb 24, 2021Observed: 0.24 ft at 5:30AM Feb 24, 2021Observed: 0.22 ft at 5:45AM Feb 24, 2021Observed: 0.21 ft at 6:00AM Feb 24, 2021Observed: 0.2 ft at 6:15AM Feb 24, 2021Observed: 0.2 ft at 6:30AM Feb 24, 2021Observed: 0.18 ft at 6:45AM Feb 24, 2021Observed: 0.16 ft at 7:00AM Feb 24, 2021Observed: 0.14 ft at 7:15AM Feb 24, 2021Observed: 0.12 ft at 7:30AM Feb 24, 2021Observed: 0.11 ft at 7:45AM Feb 24, 2021Observed: 0.1 ft at 8:00AM Feb 24, 2021Observed: 0.08 ft at 8:15AM Feb 24, 2021Observed: 0.07 ft at 8:30AM Feb 24, 2021Observed: 0.05 ft at 8:45AM Feb 24, 2021Observed: 0.03 ft at 9:00AM Feb 24, 2021Observed: 0.02 ft at 9:15AM Feb 24, 2021Observed: 0.01 ft at 9:30AM Feb 24, 2021Observed: 0.01 ft at 8:00PM Feb 24, 2021Observed: 0.03 ft at 8:15PM Feb 24, 2021Observed: 0.04 ft at 8:30PM Feb 24, 2021Observed: 0.07 ft at 8:45PM Feb 24, 2021Observed: 0.09 ft at 9:00PM Feb 24, 2021Observed: 0.1 ft at 9:15PM Feb 24, 2021Observed: 0.11 ft at 9:30PM Feb 24, 2021Observed: 0.12 ft at 9:45PM Feb 24, 2021Observed: 0.14 ft at 10:00PM Feb 24, 2021Observed: 0.16 ft at 10:15PM Feb 24, 2021Observed: 0.17 ft at 10:30PM Feb 24, 2021Observed: 0.17 ft at 10:45PM Feb 24, 2021Observed: 0.19 ft at 11:00PM Feb 24, 2021USGS--Water Resources of the United StatesMDLL1(plotting HGIRG) Graph Created (11:38PM Feb 24, 2021)ObservedLatest observed value: 0.19 ft at 11:00 PM CST 24-Feb-2021.
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About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Graphical forecasts are not available for the Lake Pontchartrain at Mid-Lake. During times of high water, forecast crest information can be found in the text products.
Return to Area Map
Flood Categories (in feet)
Not Available

Historic Crests
(1) 6.14 ft on 10/29/1985
(2) 4.77 ft on 07/30/1995

(P): Preliminary values subject to further review.

Recent Crests
(1) 4.77 ft on 07/30/1995
(2) 6.14 ft on 10/29/1985

(P): Preliminary values subject to further review.

Low Water Records
(1) -1.28 ft on 03/06/1965
(2) -0.50 ft on 02/05/1995
Zoom Level:14
KML Image
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.
About This Location Collapse

Latitude: 30.199444° N, Longitude: 90.122500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available 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 Not Available Not Available 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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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
New Orleans/Baton Rouge Weather Forecast Office
62300 Airport Rd.
Slidell, LA 70460-5243
(504) 522-7330
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