{ "lid": "ILNI2", "usgsId": "", "reachId": "14807039", "name": "Mississippi River at Illinois City", "description": "COE", "rfc": { "abbreviation": "NCRFC", "name": "North Central River Forecast Center" }, "wfo": { "abbreviation": "DVN", "name": "Davenport" }, "state": { "abbreviation": "IL", "name": "Illinois" }, "county": "Rock Island", "timeZone": "CST6CDT", "latitude": 41.425555555556, "longitude": -91.012777777778, "pedts": { "observed": "HTIRG", "forecast": "HTIFE" }, "status": { "observed": { "primary": 3, "primaryUnit": "ft", "secondary": 20.1, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T01:30:00Z" }, "forecast": { "primary": 3.1, "primaryUnit": "ft", "secondary": 22.1, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T06:00:00Z" } }, "flood": { "stageUnits": "ft", "flowUnits": "cfs", "categories": { "major": { "stage": 18, "flow": -9999 }, "moderate": { "stage": 16, "flow": -9999 }, "minor": { "stage": 15, "flow": -9999 }, "action": { "stage": 14, "flow": -9999 } }, "lro": { "minorCS": "0.06", "moderateCS": "< 0.05", "majorCS": "< 0.05", "producedTime": "2026-08-28T02:02:37Z", "interval": "SON" }, "crests": { "historic": [ { "occurredTime": "1993-07-09T00:00:00Z", "stage": 24.1, "flow": 0, "preliminary": "R", "olddatum": false }, { "occurredTime": "1965-04-28T00:00:00Z", "stage": 23.27, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-05-03T00:00:00Z", "stage": 23.23, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2008-06-17T00:00:00Z", "stage": 22.96, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-06-02T00:00:00Z", "stage": 22.81, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-04-25T00:00:00Z", "stage": 22.41, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-07-05T11:00:00Z", "stage": 22.23, "flow": 289168, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-05-02T00:00:00Z", "stage": 21.22, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "2019-04-10T00:00:00Z", "stage": 20.83, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-23T04:00:00Z", "stage": 20.74, "flow": 261045, "preliminary": "O", "olddatum": false }, { "occurredTime": "2013-04-22T09:00:00Z", "stage": 20.3, "flow": 254221, "preliminary": "O", "olddatum": false }, { "occurredTime": "2024-07-11T07:40:00Z", "stage": 20.11, "flow": 251501, "preliminary": "P", "olddatum": false }, { "occurredTime": "1973-04-25T00:00:00Z", "stage": 20.05, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2008-05-01T00:00:00Z", "stage": 19.94, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-26T00:00:00Z", "stage": 19.69, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-20T00:00:00Z", "stage": 19.57, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-28T00:00:00Z", "stage": 19.5, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-09T00:00:00Z", "stage": 19.45, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-28T00:00:00Z", "stage": 19.43, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-10-13T14:00:00Z", "stage": 19.39, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-10-07T00:00:00Z", "stage": 19.36, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-16T00:00:00Z", "stage": 17.76, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1974-06-26T00:00:00Z", "stage": 17.62, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1944-06-30T00:00:00Z", "stage": 17.5, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-05-12T00:00:00Z", "stage": 17.22, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-04-05T00:00:00Z", "stage": 17.21, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1938-09-24T00:00:00Z", "stage": 17, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-20T00:00:00Z", "stage": 16.91, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2017-06-01T00:00:00Z", "stage": 16.76, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-06-23T00:00:00Z", "stage": 16.68, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1960-04-03T00:00:00Z", "stage": 16.61, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-06-15T00:00:00Z", "stage": 16.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-06-07T00:00:00Z", "stage": 15.98, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2026-04-24T03:10:00Z", "stage": 15.97, "flow": 185752, "preliminary": "P", "olddatum": false }, { "occurredTime": "2016-09-30T00:00:00Z", "stage": 15.87, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1954-05-15T00:00:00Z", "stage": 15.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1945-04-01T00:00:00Z", "stage": 15.73, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-30T00:00:00Z", "stage": 15.61, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1946-03-30T00:00:00Z", "stage": 15.35, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1971-04-25T00:00:00Z", "stage": 15.29, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-03-29T22:40:00Z", "stage": 15.11, "flow": 171766, "preliminary": "O", "olddatum": false }, { "occurredTime": "2015-06-18T00:00:00Z", "stage": 13.52, "flow": 0, "preliminary": "O", "olddatum": false } ], "recent": [ { "occurredTime": "2026-04-24T03:10:00Z", "stage": 15.97, "flow": 185752, "preliminary": "P", "olddatum": false }, { "occurredTime": "2024-07-11T07:40:00Z", "stage": 20.11, "flow": 251501, "preliminary": "P", "olddatum": false }, { "occurredTime": "2023-05-02T00:00:00Z", "stage": 21.22, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "2019-06-02T00:00:00Z", "stage": 22.81, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-05-03T00:00:00Z", "stage": 23.23, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-10T00:00:00Z", "stage": 20.83, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-10-13T14:00:00Z", "stage": 19.39, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2018-05-12T00:00:00Z", "stage": 17.22, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2017-06-01T00:00:00Z", "stage": 16.76, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-09-30T00:00:00Z", "stage": 15.87, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-03-29T22:40:00Z", "stage": 15.11, "flow": 171766, "preliminary": "O", "olddatum": false }, { "occurredTime": "2015-06-18T00:00:00Z", "stage": 13.52, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-07-05T11:00:00Z", "stage": 22.23, "flow": 289168, "preliminary": "O", "olddatum": false }, { "occurredTime": "2013-04-22T09:00:00Z", "stage": 20.3, "flow": 254221, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-23T04:00:00Z", "stage": 20.74, "flow": 261045, "preliminary": "O", "olddatum": false }, { "occurredTime": "2008-06-17T00:00:00Z", "stage": 22.96, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2008-05-01T00:00:00Z", "stage": 19.94, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-06-23T00:00:00Z", "stage": 16.68, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-06-07T00:00:00Z", "stage": 15.98, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-04-25T00:00:00Z", "stage": 22.41, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-20T00:00:00Z", "stage": 19.57, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-07-09T00:00:00Z", "stage": 24.1, "flow": 0, "preliminary": "R", "olddatum": false }, { "occurredTime": "1986-10-07T00:00:00Z", "stage": 19.36, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-20T00:00:00Z", "stage": 16.91, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-30T00:00:00Z", "stage": 15.61, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-04-05T00:00:00Z", "stage": 17.21, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-09T00:00:00Z", "stage": 19.45, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1974-06-26T00:00:00Z", "stage": 17.62, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-04-25T00:00:00Z", "stage": 20.05, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1971-04-25T00:00:00Z", "stage": 15.29, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-26T00:00:00Z", "stage": 19.69, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-16T00:00:00Z", "stage": 17.76, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1965-04-28T00:00:00Z", "stage": 23.27, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1960-04-03T00:00:00Z", "stage": 16.61, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1954-05-15T00:00:00Z", "stage": 15.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-28T00:00:00Z", "stage": 19.5, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-28T00:00:00Z", "stage": 19.43, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1946-03-30T00:00:00Z", "stage": 15.35, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1945-04-01T00:00:00Z", "stage": 15.73, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1944-06-30T00:00:00Z", "stage": 17.5, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-06-15T00:00:00Z", "stage": 16.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1938-09-24T00:00:00Z", "stage": 17, "flow": 0, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 29, "statement": "Water reaches the top of the Milan levee." }, { "stage": 24.5, "statement": "Water reaches the top of the Andalusia levee." }, { "stage": 22.5, "statement": "Water affects the entire state park at Fairport and is at the foundations of facilities there." }, { "stage": 21.5, "statement": "Water affects the Post Office and several commercial buildings in Buffalo." }, { "stage": 20.5, "statement": "Water affects Front Street and several homes in Buffalo. Water also affects the fish hatchery at Fairport." }, { "stage": 20, "statement": "Water affects Buffalos Front Street at Franklin and on Iowa Highway 22 west of town. Water affects Illinois Highway 92 west of Andalusia." }, { "stage": 19.5, "statement": "Water affects Buffalos Franklin Street and into some yards from seepage. At Buffalo Shores, water is at the foundations of several homes." }, { "stage": 19, "statement": "Water affects the Clarks Ferry Recreational Area at Montpelier." }, { "stage": 18.5, "statement": "Water floods Andalusias Second Street in the unprotected area. Water is also at the foundations of several homes in Midway Beach." }, { "stage": 18, "statement": "Water affects the state park campground at Fairport." }, { "stage": 17, "statement": "Water affects the Buffalo Shores Access Area. Lock and Dam 16 is closed." }, { "stage": 16.98, "statement": "Lock and Dam 16 is closed." }, { "stage": 16, "statement": "Water affects the park at Andalusia." }, { "stage": 13, "statement": "Water affects residents on Smiths Island." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/ILNI2.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/ILNI2.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/ILNI2.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/ILNI2.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/ILNI2.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/ILNI2.volume.exceed.90day.gif" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/ILNI2.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/ilni2_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/ilni2_record.png" }, "photos": [] }, "dataAttribution": [ { "abbrev": "U.S. Army Corps of Engineers", "text": "U.S. Army Corps of Engineers", "title": "U.S. Army Corps of Engineers", "url": "https://www.mvr.usace.army.mil/" }, { "abbrev": "COE", "text": "Website", "title": "Observations courtesy of U.S. Army Corps of Engineers", "url": "https://www.rivergages.com/" } ], "impactsLowWaters": [], "normalThreshold": { "value": 0, "units": "ft" }, "hydronotes": [ { "statement": "River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.", "effective": "1001", "expiration": "0401" } ], "datums": { "vertical": { "value": [] }, "horizontal": { "value": [] }, "notes": { "value": [] } }, "inundation": { "enabled": false, "url": "", "zeroDatum": null, "downloads": null, "siteSpecificInfo": "", "dataAttribution": [] }, "upstreamLid": "FAII4", "downstreamLid": "MUSI4", "inService": { "enabled": true, "message": "" }, "lowThreshold": null, "forecastReliability": "Forecasts are issued routinely year-round.", "TruncateObs": "-1", "TruncateFcst": "7", "ObservedFloodCategory": "no_flooding", "ForecastFloodCategory": "no_flooding" }