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"2006-04-19T00:00:00Z", "stage": 18.66, "flow": 32400, "preliminary": "O", "olddatum": false }, { "occurredTime": "2005-01-17T00:00:00Z", "stage": 27.93, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2005-01-15T12:00:00Z", "stage": 26.09, "flow": 84600, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-06-17T00:00:00Z", "stage": 23.3, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-06-14T22:00:00Z", "stage": 22.53, "flow": 52100, "preliminary": "O", "olddatum": false }, { "occurredTime": "2003-05-12T00:00:00Z", "stage": 19.53, "flow": 38400, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-05-18T00:00:00Z", "stage": 28.28, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-05-14T17:00:00Z", "stage": 26.67, "flow": 88500, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-02-12T00:00:00Z", "stage": 24.77, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2000-07-12T00:00:00Z", "stage": 20.8, "flow": 40400, "preliminary": "O", "olddatum": false }, { "occurredTime": "1999-04-30T00:00:00Z", "stage": 23.83, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1999-04-26T00:00:00Z", "stage": 23.84, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1999-01-30T00:00:00Z", "stage": 24.16, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1999-01-25T00:00:00Z", "stage": 22.65, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1998-05-12T00:00:00Z", "stage": 27.38, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1998-05-10T00:00:00Z", "stage": 26.14, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1998-03-25T00:00:00Z", "stage": 25.77, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-03-02T00:00:00Z", "stage": 30.56, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-02-23T00:00:00Z", "stage": 27.19, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-06-03T00:00:00Z", "stage": 26.49, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-05-30T00:00:00Z", "stage": 24.91, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1995-05-30T00:00:00Z", "stage": 25.49, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1995-05-29T00:00:00Z", "stage": 28.84, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1995-04-13T00:00:00Z", "stage": 22.66, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1994-10-24T00:00:00Z", "stage": 22.44, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-04-22T00:00:00Z", "stage": 26.75, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1992-09-11T00:00:00Z", "stage": 17.21, "flow": 30900, "preliminary": "O", "olddatum": false }, { "occurredTime": "1991-03-22T00:00:00Z", "stage": 24.57, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1990-03-20T00:00:00Z", "stage": 26.96, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1989-09-11T00:00:00Z", "stage": 26.02, "flow": 45000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1988-04-07T00:00:00Z", "stage": 20.56, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1987-05-22T00:00:00Z", "stage": 19.6, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-10-08T00:00:00Z", "stage": 24.13, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1985-11-23T00:00:00Z", "stage": 28.58, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1985-11-21T00:00:00Z", "stage": 27.92, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1985-03-07T00:00:00Z", "stage": 32.02, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1985-03-05T00:00:00Z", "stage": 31.25, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1984-03-23T00:00:00Z", "stage": 24.45, "flow": 53700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1984-02-19T00:00:00Z", "stage": 24.68, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-12-08T00:00:00Z", "stage": 30.7, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-12-07T00:00:00Z", "stage": 29.97, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-03-22T00:00:00Z", "stage": 30.74, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-03-22T00:00:00Z", "stage": 32.67, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-05-23T00:00:00Z", "stage": 32.2, "flow": 0, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 32.5, "statement": "Illinois Route 18 in Marshall County is closed. Parts of Illinois Route 17 between Sparland and Lacon are closed." }, { "stage": 32, "statement": "Water begins flooding parts of Illinois Route 18 between Henry and Illinois Route 26. Parts of Illinois Route 17 begin to flood." }, { "stage": 30.5, "statement": "The Marina building is flooded. Inundation from Waterworks Park on Cromwell Drive toward old grain elevator location on Water Street." }, { "stage": 29.6, "statement": "A few homes begin to flood in Henry." }, { "stage": 28.5, "statement": "Hennepin levee overtopped." }, { "stage": 28, "statement": "Flooding begins to affect buildings east of Illinois Route 29 in Sparland." }, { "stage": 23, "statement": "Water begins to affect the marina in Henry along with minor flooding of land adjacent to the river." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/HNYI2.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/HNYI2.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/HNYI2.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/HNYI2.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/HNYI2.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/HNYI2.volume.exceed.90day.gif" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/HNYI2.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/hnyi2_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/hnyi2_record.png" }, "photos": [ { "id": "10165095250179068398", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 41.1072, -89.3562 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/hnyi2/10165095250179068398.jpeg", "caption": "Gauge House" } }, { "id": "15475291745783124462", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 41.1072, -89.3562 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/hnyi2/15475291745783124462.jpeg", "caption": "Looking Downstream (Stage: 15.45 ft)" } }, { "id": "15494180475080020462", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 41.1072, -89.3562 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/hnyi2/15494180475080020462.jpeg", "caption": "Looking Upstream (Stage: 15.45 ft)" } } ] }, "dataAttribution": [ { "abbrev": "USGS & USACE", "text": "USGS--Water Resources of the United States", "title": "USGS & USACE", "url": "https://waterdata.usgs.gov/nwis" }, { "abbrev": "USGS", "text": "Station #05558300", "title": "Observations courtesy of U.S. Geological Survey", "url": "https://waterdata.usgs.gov/monitoring-location/05558300" }, { "abbrev": "USACE", "text": "USACE", "title": "Observations courtesy of U.S. Army Corps of Engineers", "url": "https://rivergages.mvr.usace.army.mil/WaterControl/stationinfo2.cfm?sid=HNYI2" } ], "impactsLowWaters": [], "normalThreshold": null, "hydronotes": [ { "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": 425.85 } ] }, "horizontal": { "value": [] }, "notes": { "value": [] } }, "inundation": { "enabled": false, "url": "", "zeroDatum": null, "downloads": null, "siteSpecificInfo": "", "dataAttribution": [] }, "upstreamLid": "LSLI2", "downstreamLid": "CHLI2", "inService": { "enabled": true, "message": "" }, "lowThreshold": null, "forecastReliability": "Forecasts are issued routinely year-round.", "TruncateObs": "-1", "TruncateFcst": "-1", "ObservedFloodCategory": "no_flooding", "ForecastFloodCategory": "no_flooding" }