{ "lid": "MLUL1", "usgsId": "07367005", "reachId": "19432886", "name": "Ouachita River at Monroe", "description": "Monroe", "rfc": { "abbreviation": "LMRFC", "name": "Lower Mississippi River Forecast Center" }, "wfo": { "abbreviation": "SHV", "name": "Shreveport" }, "state": { "abbreviation": "LA", "name": "Louisiana" }, "county": "Ouachita", "timeZone": "CST6CDT", "latitude": 32.500277777778, "longitude": -92.119722222222, "pedts": { "observed": "HGIRG", "forecast": "HGIFF" }, "status": { "observed": { "primary": 18.3, "primaryUnit": "ft", "secondary": 8.31, "secondaryUnit": "kcfs", "floodCategory": "low_threshold", "validTime": "2026-08-30T21:00:00Z" }, "forecast": { "primary": 18.3, "primaryUnit": "ft", "secondary": 8.31, "secondaryUnit": "kcfs", "floodCategory": "low_threshold", "validTime": "2026-08-31T00:00:00Z" } }, "flood": { "stageUnits": "ft", "flowUnits": "cfs", "categories": { "major": { "stage": 45, "flow": 80200 }, "moderate": { "stage": 43, "flow": 70700 }, "minor": { "stage": 40, "flow": 63000 }, "action": { "stage": 35.5, "flow": 53500 } }, "lro": null, "crests": { "historic": [ { "occurredTime": "1958-05-22T00:00:00Z", "stage": 50.81, "flow": 97200, "preliminary": "R", "olddatum": true }, { "occurredTime": "1945-04-15T00:00:00Z", "stage": 50.78, "flow": 100000, "preliminary": "O", "olddatum": true }, { "occurredTime": "1991-05-04T00:00:00Z", "stage": 50.48, "flow": 108760, "preliminary": "O", "olddatum": true }, { "occurredTime": "1932-02-02T00:00:00Z", "stage": 50.1, "flow": 101000, "preliminary": "O", "olddatum": true }, { "occurredTime": "1885-01-19T00:00:00Z", "stage": 48.7, "flow": 87800, "preliminary": "O", "olddatum": true }, { "occurredTime": "1927-05-04T00:00:00Z", "stage": 48.6, "flow": 78000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-05-07T07:00:00Z", "stage": 48.6, "flow": 95000, "preliminary": "O", "olddatum": true }, { "occurredTime": "2009-11-10T00:00:00Z", "stage": 47.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1950-03-01T00:00:00Z", "stage": 47.61, "flow": 78600, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-03-16T18:00:00Z", "stage": 47.4, "flow": 93200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-01-05T00:00:00Z", "stage": 47.2, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1884-06-03T00:00:00Z", "stage": 46.7, "flow": 75700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1912-04-22T00:00:00Z", "stage": 46.6, "flow": 75200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1953-05-30T00:00:00Z", "stage": 46.3, "flow": 68700, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-03-25T00:30:00Z", "stage": 45.89, "flow": 82400, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-05-23T07:45:00Z", "stage": 45.88, "flow": 84500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1944-05-19T00:00:00Z", "stage": 45.82, "flow": 72200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1946-02-23T00:00:00Z", "stage": 45.7, "flow": 67700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1974-01-30T00:00:00Z", "stage": 45.55, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-03-19T00:00:00Z", "stage": 45.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1894-04-10T00:00:00Z", "stage": 45.4, "flow": 70600, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-05-13T00:00:00Z", "stage": 45.28, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1937-02-09T00:00:00Z", "stage": 45.1, "flow": 72800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1903-03-26T00:00:00Z", "stage": 44.9, "flow": 69100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1968-06-06T00:00:00Z", "stage": 44.7, "flow": 64800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-18T00:00:00Z", "stage": 44.55, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1905-05-31T00:00:00Z", "stage": 44.4, "flow": 67600, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-04-14T13:00:00Z", "stage": 44.2, "flow": 76600, "preliminary": "O", "olddatum": false }, { "occurredTime": "2009-05-25T00:00:00Z", "stage": 43.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1890-05-14T00:00:00Z", "stage": 43.6, "flow": 65400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1990-04-05T00:00:00Z", "stage": 43.36, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-01-10T00:00:00Z", "stage": 43.1, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1957-05-19T00:00:00Z", "stage": 43.01, "flow": 59500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1949-02-17T00:00:00Z", "stage": 42.84, "flow": 59400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1922-05-09T00:00:00Z", "stage": 42.7, "flow": 63100, "preliminary": "O", "olddatum": false }, { "occurredTime": "2020-03-19T01:15:00Z", "stage": 42.25, "flow": 68400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1988-01-30T00:00:00Z", "stage": 42, "flow": 62875, "preliminary": "O", "olddatum": false }, { "occurredTime": "1938-03-07T00:00:00Z", "stage": 41.9, "flow": 58200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1939-03-08T00:00:00Z", "stage": 41.7, "flow": 60800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1892-06-27T00:00:00Z", "stage": 41.5, "flow": 60000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1920-06-05T00:00:00Z", "stage": 41.4, "flow": 59800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1989-03-12T00:00:00Z", "stage": 41.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1961-04-20T00:00:00Z", "stage": 41.1, "flow": 53400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1930-06-06T00:00:00Z", "stage": 41, "flow": 60900, "preliminary": "O", "olddatum": false }, { "occurredTime": "1916-02-19T00:00:00Z", "stage": 41, "flow": 58700, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-01-01T00:00:00Z", "stage": 40.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1948-03-23T00:00:00Z", "stage": 40.6, "flow": 54200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1893-01-09T00:00:00Z", "stage": 40.6, "flow": 57800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-05-19T00:00:00Z", "stage": 40.2, "flow": 54800, "preliminary": "O", "olddatum": false }, { "occurredTime": "2015-04-03T22:00:00Z", "stage": 40.06, "flow": 64100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1966-05-20T00:00:00Z", "stage": 39.5, "flow": 53400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1921-05-18T00:00:00Z", "stage": 39.2, "flow": 54400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1907-01-23T00:00:00Z", "stage": 38.9, "flow": 53700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1891-03-16T00:00:00Z", "stage": 38.9, "flow": 53700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1914-04-19T00:00:00Z", "stage": 38.7, "flow": 53200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1962-02-09T00:00:00Z", "stage": 38.7, "flow": 49600, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-09T00:00:00Z", "stage": 38.3, "flow": 52300, "preliminary": "O", "olddatum": false }, { "occurredTime": "1980-04-29T00:00:00Z", "stage": 38.25, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1923-06-05T00:00:00Z", "stage": 38.2, "flow": 52000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1994-03-16T00:00:00Z", "stage": 37.63, "flow": 0, "preliminary": "O", "olddatum": false } ], "recent": [ { "occurredTime": "2020-03-19T01:15:00Z", "stage": 42.25, "flow": 68400, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-05-23T07:45:00Z", "stage": 45.88, "flow": 84500, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-03-16T18:00:00Z", "stage": 47.4, "flow": 93200, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-04-14T13:00:00Z", "stage": 44.2, "flow": 76600, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-03-25T00:30:00Z", "stage": 45.89, "flow": 82400, "preliminary": "O", "olddatum": false }, { "occurredTime": "2015-04-03T22:00:00Z", "stage": 40.06, "flow": 64100, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-01-10T00:00:00Z", "stage": 43.1, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2009-11-10T00:00:00Z", "stage": 47.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2009-05-25T00:00:00Z", "stage": 43.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-01-01T00:00:00Z", "stage": 40.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-03-19T00:00:00Z", "stage": 45.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-09T00:00:00Z", "stage": 38.3, "flow": 52300, "preliminary": "O", "olddatum": false }, { "occurredTime": "1994-03-16T00:00:00Z", "stage": 37.63, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1991-05-04T00:00:00Z", "stage": 50.48, "flow": 108760, "preliminary": "O", "olddatum": true }, { "occurredTime": "1990-04-05T00:00:00Z", "stage": 43.36, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1989-03-12T00:00:00Z", "stage": 41.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1988-01-30T00:00:00Z", "stage": 42, "flow": 62875, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-01-05T00:00:00Z", "stage": 47.2, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1980-04-29T00:00:00Z", "stage": 38.25, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-05-13T00:00:00Z", "stage": 45.28, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-18T00:00:00Z", "stage": 44.55, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1974-01-30T00:00:00Z", "stage": 45.55, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-05-07T07:00:00Z", "stage": 48.6, "flow": 95000, "preliminary": "O", "olddatum": true }, { "occurredTime": "1968-06-06T00:00:00Z", "stage": 44.7, "flow": 64800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1966-05-20T00:00:00Z", "stage": 39.5, "flow": 53400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1962-02-09T00:00:00Z", "stage": 38.7, "flow": 49600, "preliminary": "O", "olddatum": false }, { "occurredTime": "1961-04-20T00:00:00Z", "stage": 41.1, "flow": 53400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1958-05-22T00:00:00Z", "stage": 50.81, "flow": 97200, "preliminary": "R", "olddatum": true }, { "occurredTime": "1957-05-19T00:00:00Z", "stage": 43.01, "flow": 59500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1953-05-30T00:00:00Z", "stage": 46.3, "flow": 68700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1950-03-01T00:00:00Z", "stage": 47.61, "flow": 78600, "preliminary": "O", "olddatum": false }, { "occurredTime": "1949-02-17T00:00:00Z", "stage": 42.84, "flow": 59400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1948-03-23T00:00:00Z", "stage": 40.6, "flow": 54200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1946-02-23T00:00:00Z", "stage": 45.7, "flow": 67700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1945-04-15T00:00:00Z", "stage": 50.78, "flow": 100000, "preliminary": "O", "olddatum": true }, { "occurredTime": "1944-05-19T00:00:00Z", "stage": 45.82, "flow": 72200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-05-19T00:00:00Z", "stage": 40.2, "flow": 54800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1939-03-08T00:00:00Z", "stage": 41.7, "flow": 60800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1938-03-07T00:00:00Z", "stage": 41.9, "flow": 58200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1937-02-09T00:00:00Z", "stage": 45.1, "flow": 72800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1932-02-02T00:00:00Z", "stage": 50.1, "flow": 101000, "preliminary": "O", "olddatum": true }, { "occurredTime": "1930-06-06T00:00:00Z", "stage": 41, "flow": 60900, "preliminary": "O", "olddatum": false }, { "occurredTime": "1927-05-04T00:00:00Z", "stage": 48.6, "flow": 78000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1923-06-05T00:00:00Z", "stage": 38.2, "flow": 52000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1922-05-09T00:00:00Z", "stage": 42.7, "flow": 63100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1921-05-18T00:00:00Z", "stage": 39.2, "flow": 54400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1920-06-05T00:00:00Z", "stage": 41.4, "flow": 59800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1916-02-19T00:00:00Z", "stage": 41, "flow": 58700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1914-04-19T00:00:00Z", "stage": 38.7, "flow": 53200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1912-04-22T00:00:00Z", "stage": 46.6, "flow": 75200, "preliminary": "O", "olddatum": false }, { "occurredTime": "1907-01-23T00:00:00Z", "stage": 38.9, "flow": 53700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1905-05-31T00:00:00Z", "stage": 44.4, "flow": 67600, "preliminary": "O", "olddatum": false }, { "occurredTime": "1903-03-26T00:00:00Z", "stage": 44.9, "flow": 69100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1894-04-10T00:00:00Z", "stage": 45.4, "flow": 70600, "preliminary": "O", "olddatum": false }, { "occurredTime": "1893-01-09T00:00:00Z", "stage": 40.6, "flow": 57800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1892-06-27T00:00:00Z", "stage": 41.5, "flow": 60000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1891-03-16T00:00:00Z", "stage": 38.9, "flow": 53700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1890-05-14T00:00:00Z", "stage": 43.6, "flow": 65400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1885-01-19T00:00:00Z", "stage": 48.7, "flow": 87800, "preliminary": "O", "olddatum": true }, { "occurredTime": "1884-06-03T00:00:00Z", "stage": 46.7, "flow": 75700, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 54.4, "statement": "Catastrophic flooding occurrs with water overtopping numerous levees in the Monroe area. High water laps at the bottom of the U.S. Highway 80 bridge." }, { "stage": 49, "statement": "Major flooding between the levees occurs and the floodwall gap must be closed on the East Monroe side of the river." }, { "stage": 47.5, "statement": "Water floods the underclearance of the Desiard Street bridge. Major lowland flooding occurs between the levee systems." }, { "stage": 45, "statement": "The Prairon Bayou recreational area floods and closes. Lowland flooding becomes extensive at this stage between levees." }, { "stage": 43, "statement": "The Bawcomville and Moon Lake recreational areas flood and close." }, { "stage": 40, "statement": "Minor backwater flooding affects small bayous that drain into the Ouachita River along with minor lowland flooding between levee systems." }, { "stage": 36, "statement": "Both the Forsythe and Lazarre recreational areas flood and close with very minor lowland flooding immediately next to the river." }, { "stage": 34, "statement": "The Forsythe Recreational Area closes, otherwise no other flooding occurs in the Monroe area until a stage of 36 feet." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/MLUL1.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/MLUL1.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/MLUL1.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/MLUL1.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/MLUL1.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/MLUL1.volume.exceed.90day.gif" }, "shortrange": "" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/mlul1_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/mlul1_record.png" }, "photos": [] }, "dataAttribution": [ { "abbrev": "US Geological Survey", "text": "USGS--Water Resources of the United States", "title": "US Geological Survey", "url": "https://waterdata.usgs.gov/nwis" }, { "abbrev": "USGS", "text": "07367005", "title": "Observations courtesy of U.S. Geological Survey", "url": "https://waterdata.usgs.gov/nwis/inventory/?site_no=07367005" } ], "impactsLowWaters": [], "normalThreshold": { "value": 0, "units": "ft" }, "hydronotes": [ { "statement": "-- none --", "effective": "0101", "expiration": "1231" }, { "statement": "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.", "effective": "0101", "expiration": "1231" } ], "datums": { "vertical": { "value": [ { "label": "North American Vertical Datum of 1988", "abbrev": "NAVD88", "description": "A fixed reference for elevations determined by geodetic leveling. The datum was derived from a general adjustment of the first-order terrestrial leveling nets of the United States, Canada, and Mexico. In the adjustment, only the height of the primary tidal bench mark, referenced to the International Great Lakes Datum of 1985 (IGLD 85) local mean sea level height value, at Father Point, Rimouski, Quebec, Canada was held fixed, thus providing minimum constraint. NAVD 88 and IGLD 85 are identical. However, NAVD 88 bench mark values are given in Helmert orthometric height units while IGLD 85 values are in dynamic heights. See International Great Lakes Datum of 1985, National Geodetic Vertical Datum of 1929, and geopotential difference. NAVD 88 should not be used as Mean Sea Level.", "value": 30.8 } ] }, "horizontal": { "value": [] }, "notes": { "value": [] } }, "inundation": { "enabled": true, "url": "https://mapservices.weather.noaa.gov/static/rest/services/NWS_FIM/FIM_mlul1/MapServer", "zeroDatum": { "value": 30.8, "datum": "NAVD88" }, "downloads": { "depthGrids": "https://water.noaa.gov/resources/downloads/fim/mlul1/mlul1_shapefiles.zip", "images": "https://water.noaa.gov/resources/downloads/fim/mlul1/mlul1_images.zip", "kmz": "https://water.noaa.gov/resources/downloads/fim/mlul1/mlul1_kmz.zip" }, "siteSpecificInfo": "", "dataAttribution": [ { "text": "USGS", "title": "Observations courtesy of the US Geological Survey", "url": "", "image": "https://water.noaa.gov/resources/fim/" }, { "text": "State", "title": "LA State Partner", "url": "", "image": "https://water.noaa.gov/resources/fim/" } ] }, "upstreamLid": "LDBL1", "downstreamLid": "COLL1", "inService": { "enabled": true, "message": "" }, "lowThreshold": { "units": "ft", "value": 19 }, "forecastReliability": "Forecasts are issued routinely year-round.", "TruncateObs": "-1", "TruncateFcst": "5", "ObservedFloodCategory": "low_threshold", "ForecastFloodCategory": "low_threshold" }