{ "lid": "TREW3", "usgsId": "", "reachId": "2121096", "name": "Mississippi River below Lock and Dam 6 - Trempealeau", "description": "", "rfc": { "abbreviation": "NCRFC", "name": "North Central River Forecast Center" }, "wfo": { "abbreviation": "ARX", "name": "La Crosse" }, "state": { "abbreviation": "WI", "name": "Wisconsin" }, "county": "Trempealeau", "timeZone": "CST6CDT", "latitude": 43.9986, "longitude": -91.4357, "pedts": { "observed": "HTIRG", "forecast": "HTIFF" }, "status": { "observed": { "primary": 639.41, "primaryUnit": "ft", "secondary": 13.2, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-30T22:15:00Z" }, "forecast": { "primary": 639.4, "primaryUnit": "ft", "secondary": 13, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T00:00:00Z" } }, "flood": { "stageUnits": "ft", "flowUnits": "cfs", "categories": { "major": { "stage": 651, "flow": -9999 }, "moderate": { "stage": 649, "flow": -9999 }, "minor": { "stage": 647, "flow": -9999 }, "action": { "stage": 644, "flow": -9999 } }, "lro": { "minorCS": "< 0.05", "moderateCS": "< 0.05", "majorCS": "< 0.05", "producedTime": "2026-08-28T22:02:21Z", "interval": "SON" }, "crests": { "historic": [ { "occurredTime": "1965-04-21T00:00:00Z", "stage": 653.02, "flow": 273000, "preliminary": "R", "olddatum": false }, { "occurredTime": "2001-04-18T00:00:00Z", "stage": 651.43, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-11T00:00:00Z", "stage": 651.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-25T21:15:00Z", "stage": 651.01, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "1969-04-19T00:00:00Z", "stage": 650.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-20T00:00:00Z", "stage": 649.98, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-06-26T00:00:00Z", "stage": 649.82, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-03T00:30:00Z", "stage": 649.8, "flow": 180667, "preliminary": "O", "olddatum": false }, { "occurredTime": "2024-07-02T14:00:00Z", "stage": 649.72, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-18T00:00:00Z", "stage": 649.55, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-07T00:00:00Z", "stage": 649.35, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-15T03:00:00Z", "stage": 649.27, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-01T00:00:00Z", "stage": 649.27, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-07T00:00:00Z", "stage": 649.12, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1954-05-07T00:00:00Z", "stage": 648.96, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-07-02T01:00:00Z", "stage": 648.86, "flow": 154767, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-05-25T17:30:00Z", "stage": 648.53, "flow": 153305, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-04-25T00:00:00Z", "stage": 648.21, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-23T00:00:00Z", "stage": 648.1, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-06-22T00:00:00Z", "stage": 647.95, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-12T00:00:00Z", "stage": 647.88, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-03-20T00:00:00Z", "stage": 647.81, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-09-26T21:00:00Z", "stage": 647.71, "flow": 138598, "preliminary": "O", "olddatum": false }, { "occurredTime": "1971-04-17T00:00:00Z", "stage": 647.48, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1950-05-15T00:00:00Z", "stage": 647.34, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2017-05-24T17:00:00Z", "stage": 647.34, "flow": 132421, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-04-27T00:00:00Z", "stage": 647.27, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-04-19T00:00:00Z", "stage": 647.23, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-06-04T00:00:00Z", "stage": 647.08, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2003-05-17T16:00:00Z", "stage": 647.01, "flow": 118700, "preliminary": "O", "olddatum": false } ], "recent": [ { "occurredTime": "2024-07-02T14:00:00Z", "stage": 649.72, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-25T21:15:00Z", "stage": 651.01, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "2019-05-25T17:30:00Z", "stage": 648.53, "flow": 153305, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-03T00:30:00Z", "stage": 649.8, "flow": 180667, "preliminary": "O", "olddatum": false }, { "occurredTime": "2017-05-24T17:00:00Z", "stage": 647.34, "flow": 132421, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-07-02T01:00:00Z", "stage": 648.86, "flow": 154767, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-15T03:00:00Z", "stage": 649.27, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-09-26T21:00:00Z", "stage": 647.71, "flow": 138598, "preliminary": "O", "olddatum": false }, { "occurredTime": "2003-05-17T16:00:00Z", "stage": 647.01, "flow": 118700, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-04-19T00:00:00Z", "stage": 647.23, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-04-18T00:00:00Z", "stage": 651.43, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-11T00:00:00Z", "stage": 651.4, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-04-25T00:00:00Z", "stage": 648.21, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-06-26T00:00:00Z", "stage": 649.82, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-07T00:00:00Z", "stage": 649.12, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-12T00:00:00Z", "stage": 647.88, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-23T00:00:00Z", "stage": 648.1, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-04-27T00:00:00Z", "stage": 647.27, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-01T00:00:00Z", "stage": 649.27, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-03-20T00:00:00Z", "stage": 647.81, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1971-04-17T00:00:00Z", "stage": 647.48, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-19T00:00:00Z", "stage": 650.8, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-07T00:00:00Z", "stage": 649.35, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1965-04-21T00:00:00Z", "stage": 653.02, "flow": 273000, "preliminary": "R", "olddatum": false }, { "occurredTime": "1954-05-07T00:00:00Z", "stage": 648.96, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-20T00:00:00Z", "stage": 649.98, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-18T00:00:00Z", "stage": 649.55, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1950-05-15T00:00:00Z", "stage": 647.34, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-06-22T00:00:00Z", "stage": 647.95, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-06-04T00:00:00Z", "stage": 647.08, "flow": 0, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 654.5, "statement": "Water begins to flow over the lock walls and the protective earthen dikes." }, { "stage": 653.02, "statement": "Water levels reach the flood of record." }, { "stage": 651.5, "statement": "Lock and dam 6 is closed to navigation. " }, { "stage": 648, "statement": "Approximately when Lake Road is closed to all traffic." }, { "stage": 647, "statement": "Water is across Lake Road at Pickeral Path - the road is closed to local traffic only." }, { "stage": 646.5, "statement": "Water reaches the edge of the blacktop on Lake Road near Pickeral Path." }, { "stage": 646, "statement": "Peninsula Drive by the boat landing is covered by water." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/TREW3.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/TREW3.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/TREW3.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/TREW3.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/TREW3.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/TREW3.volume.exceed.90day.gif" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/TREW3.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/trew3_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/trew3_record.png" }, "photos": [ { "id": "5187075605467107822", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 43.9986, -91.4357 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/trew3/5187075605467107822.jpeg", "caption": "Downstream View at Trempealeau, September 11th, 2012" } }, { "id": "5263712970377400814", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 43.9986, -91.4357 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/trew3/5263712970377400814.jpeg", "caption": "Upstream View at Trempealeau, September 11th, 2012" } } ] }, "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/location/LockDam_06" } ], "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": "WNAM5", "downstreamLid": "DKTM5", "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" }