{ "lid": "LNSI4", "usgsId": "", "reachId": "13210212", "name": "Mississippi River at Lansing - Pool 9", "description": "", "rfc": { "abbreviation": "NCRFC", "name": "North Central River Forecast Center" }, "wfo": { "abbreviation": "ARX", "name": "La Crosse" }, "state": { "abbreviation": "IA", "name": "Iowa" }, "county": "Allamakee", "timeZone": "CST6CDT", "latitude": 43.3603, "longitude": -91.2131, "pedts": { "observed": "HGIRG", "forecast": "HGIFF" }, "status": { "observed": { "primary": 8.11, "primaryUnit": "ft", "secondary": 35.2, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-30T21:15:00Z" }, "forecast": { "primary": 8.1, "primaryUnit": "ft", "secondary": 34.7, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T00:00:00Z" } }, "flood": { "stageUnits": "ft", "flowUnits": "cfs", "categories": { "major": { "stage": 20, "flow": -9999 }, "moderate": { "stage": 19, "flow": -9999 }, "minor": { "stage": 17, "flow": -9999 }, "action": { "stage": 12, "flow": -9999 } }, "lro": { "minorCS": "< 0.05", "moderateCS": "< 0.05", "majorCS": "< 0.05", "producedTime": "2026-08-28T20:02:41Z", "interval": "SON" }, "crests": { "historic": [ { "occurredTime": "1965-04-24T00:00:00Z", "stage": 22.5, "flow": 0, "preliminary": "R", "olddatum": false }, { "occurredTime": "2001-04-21T08:00:00Z", "stage": 19.93, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1880-06-20T00:00:00Z", "stage": 19.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-28T06:15:00Z", "stage": 19.61, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "1969-04-22T00:00:00Z", "stage": 18.88, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-06-30T00:00:00Z", "stage": 18.46, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-15T00:00:00Z", "stage": 18.38, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-23T00:00:00Z", "stage": 18.14, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2024-07-05T09:30:00Z", "stage": 18.06, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-04T19:00:00Z", "stage": 17.89, "flow": 198130, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-26T11:30:00Z", "stage": 17.83, "flow": 197110, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-04T00:00:00Z", "stage": 17.76, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-20T00:00:00Z", "stage": 17.62, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-18T02:00:00Z", "stage": 17.61, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-09T00:00:00Z", "stage": 17.18, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-05-01T04:45:00Z", "stage": 17.03, "flow": 183510, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-10T00:00:00Z", "stage": 16.8, "flow": 0, "preliminary": "O", "olddatum": false } ], "recent": [ { "occurredTime": "2024-07-05T09:30:00Z", "stage": 18.06, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-28T06:15:00Z", "stage": 19.61, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "2019-05-01T04:45:00Z", "stage": 17.03, "flow": 183510, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-26T11:30:00Z", "stage": 17.83, "flow": 197110, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-04T19:00:00Z", "stage": 17.89, "flow": 198130, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-18T02:00:00Z", "stage": 17.61, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-04-21T08:00:00Z", "stage": 19.93, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-15T00:00:00Z", "stage": 18.38, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-06-30T00:00:00Z", "stage": 18.46, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-10T00:00:00Z", "stage": 16.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-04T00:00:00Z", "stage": 17.76, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-22T00:00:00Z", "stage": 18.88, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-09T00:00:00Z", "stage": 17.18, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1965-04-24T00:00:00Z", "stage": 22.5, "flow": 0, "preliminary": "R", "olddatum": false }, { "occurredTime": "1952-04-23T00:00:00Z", "stage": 18.14, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-20T00:00:00Z", "stage": 17.62, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1880-06-20T00:00:00Z", "stage": 19.9, "flow": 0, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 24, "statement": "The water reaches the top of the dikes." }, { "stage": 23, "statement": "Interstate Power steam plant becomes inoperative." }, { "stage": 22.5, "statement": "The water reaches the flood of record set in 1965." }, { "stage": 21, "statement": "Dairyland Power becomes inoperative." }, { "stage": 20, "statement": "The Wisconsin Highway 82 river crossing between Highway 35 and Lansing is closed." }, { "stage": 19.8, "statement": "Water from the storm sewer system covers the 700 block of South Front Street." }, { "stage": 18.8, "statement": "Water begins to cover Highway X52 by the wastewater treatment plant." }, { "stage": 18.6, "statement": "Water from the storm sewer system covers the 400 block of South Front Street." }, { "stage": 18.2, "statement": "Lock and Dam 9 goes out of operation." }, { "stage": 17.89, "statement": "Water from the storm sewer system reaches the 300 and 500 blocks of South Front Street." }, { "stage": 17.6, "statement": "Water from the storm sewer system covers the 600 block of South Front Street." }, { "stage": 14.9, "statement": "River water back flows into Hogan Park by the sewer by-pass." }, { "stage": 14.5, "statement": "River water back flows onto the ball park diamond via the lift station bypass." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/LNSI4.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/LNSI4.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/LNSI4.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/LNSI4.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/LNSI4.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/LNSI4.volume.exceed.90day.gif" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/LNSI4.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/lnsi4_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/lnsi4_record.png" }, "photos": [ { "id": "10899859572071141870", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 43.3603, -91.2131 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/lnsi4/10899859572071141870.jpeg", "caption": "Upstream view at Lansing, September 28th, 2011" } }, { "id": "10933963360453071342", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 43.3603, -91.2131 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/lnsi4/10933963360453071342.jpeg", "caption": "Downstream view at Lansing, September 28th, 2011" } } ] }, "dataAttribution": [ { "abbrev": "US Army Corps of Engineers", "text": "USACE - Building Strong", "title": "Observations courtesy of U.S. Army Corps of Engineers", "url": "https://water.usace.army.mil/office/mvp/gage-location/Lansing" } ], "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": "0401", "expiration": "0930" }, { "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": "0331" } ], "datums": { "vertical": { "value": [] }, "horizontal": { "value": [] }, "notes": { "value": [] } }, "inundation": { "enabled": false, "url": "", "zeroDatum": null, "downloads": null, "siteSpecificInfo": "", "dataAttribution": [] }, "upstreamLid": "GENW3", "downstreamLid": "LYNW3", "inService": { "enabled": true, "message": "" }, "lowThreshold": null, "forecastReliability": "Forecasts are issued routinely during the navigation season, and as needed at other times of the year.", "TruncateObs": "-1", "TruncateFcst": "7", "ObservedFloodCategory": "no_flooding", "ForecastFloodCategory": "no_flooding" }