{ "lid": "WIDM5", "usgsId": "05378490", "reachId": "2118838", "name": "Mississippi River below Lock and Dam 5a - Winona", "description": "", "rfc": { "abbreviation": "NCRFC", "name": "North Central River Forecast Center" }, "wfo": { "abbreviation": "ARX", "name": "La Crosse" }, "state": { "abbreviation": "MN", "name": "Minnesota" }, "county": "Winona", "timeZone": "CST6CDT", "latitude": 44.0865, "longitude": -91.6685, "pedts": { "observed": "HTIRG", "forecast": "HTIFF" }, "status": { "observed": { "primary": 645.84, "primaryUnit": "ft", "secondary": 18, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T01:15:00Z" }, "forecast": { "primary": 645.8, "primaryUnit": "ft", "secondary": 16.8, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T06:00:00Z" } }, "flood": { "stageUnits": "ft", "flowUnits": "cfs", "categories": { "major": { "stage": 661, "flow": -9999 }, "moderate": { "stage": 659, "flow": -9999 }, "minor": { "stage": 655, "flow": -9999 }, "action": { "stage": 650, "flow": -9999 } }, "lro": { "minorCS": "< 0.05", "moderateCS": "< 0.05", "majorCS": "< 0.05", "producedTime": "2026-08-28T02:02:37Z", "interval": "SON" }, "crests": { "historic": [ { "occurredTime": "1965-04-19T00:00:00Z", "stage": 663.35, "flow": 0, "preliminary": "R", "olddatum": false }, { "occurredTime": "2001-04-17T00:00:00Z", "stage": 661.95, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-11T00:00:00Z", "stage": 661.6, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-19T00:00:00Z", "stage": 661.37, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-26T03:45:00Z", "stage": 660.51, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "1952-04-20T00:00:00Z", "stage": 659.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-18T00:00:00Z", "stage": 659.26, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-03T00:00:00Z", "stage": 658.75, "flow": 180000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-06T00:00:00Z", "stage": 658.69, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-06-26T00:00:00Z", "stage": 658.28, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-07T00:00:00Z", "stage": 658.24, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-15T06:00:00Z", "stage": 658.17, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1954-05-07T00:00:00Z", "stage": 658.13, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-02T00:00:00Z", "stage": 658.06, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2024-07-02T21:30:00Z", "stage": 657.63, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-07-02T01:00:00Z", "stage": 657, "flow": 152033, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-06-22T00:00:00Z", "stage": 656.7, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-05-25T15:15:00Z", "stage": 656.55, "flow": 144863, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-04-25T00:00:00Z", "stage": 656.34, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-23T00:00:00Z", "stage": 656.08, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-03-20T00:00:00Z", "stage": 656.08, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-12T00:00:00Z", "stage": 656.08, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-09-29T22:00:00Z", "stage": 655.12, "flow": 125577, "preliminary": "O", "olddatum": false }, { "occurredTime": "2003-05-17T16:00:00Z", "stage": 654.51, "flow": 108900, "preliminary": "O", "olddatum": false } ], "recent": [ { "occurredTime": "2024-07-02T21:30:00Z", "stage": 657.63, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-26T03:45:00Z", "stage": 660.51, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "2019-05-25T15:15:00Z", "stage": 656.55, "flow": 144863, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-03T00:00:00Z", "stage": 658.75, "flow": 180000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-07-02T01:00:00Z", "stage": 657, "flow": 152033, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-15T06:00:00Z", "stage": 658.17, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-09-29T22:00:00Z", "stage": 655.12, "flow": 125577, "preliminary": "O", "olddatum": false }, { "occurredTime": "2003-05-17T16:00:00Z", "stage": 654.51, "flow": 108900, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-04-17T00:00:00Z", "stage": 661.95, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-11T00:00:00Z", "stage": 661.6, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-04-25T00:00:00Z", "stage": 656.34, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-06-26T00:00:00Z", "stage": 658.28, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-07T00:00:00Z", "stage": 658.24, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-12T00:00:00Z", "stage": 656.08, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-23T00:00:00Z", "stage": 656.08, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-02T00:00:00Z", "stage": 658.06, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-03-20T00:00:00Z", "stage": 656.08, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-19T00:00:00Z", "stage": 661.37, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-06T00:00:00Z", "stage": 658.69, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1965-04-19T00:00:00Z", "stage": 663.35, "flow": 0, "preliminary": "R", "olddatum": false }, { "occurredTime": "1954-05-07T00:00:00Z", "stage": 658.13, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-20T00:00:00Z", "stage": 659.9, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-18T00:00:00Z", "stage": 659.26, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-06-22T00:00:00Z", "stage": 656.7, "flow": 0, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 664, "statement": "Water reaches the top of the protective earthen levee." }, { "stage": 663.35, "statement": "Water levels reach the flood of record. " }, { "stage": 663, "statement": "Lock walls go underwater." }, { "stage": 660, "statement": "Lock and dam 5A closes to navigation." }, { "stage": 651, "statement": "Water begins to impact campsites along river upstream at Merrick State Park." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/WIDM5.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/WIDM5.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/WIDM5.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/WIDM5.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/WIDM5.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/WIDM5.volume.exceed.90day.gif" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/WIDM5.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/widm5_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/widm5_record.png" }, "photos": [ { "id": "5673956864827986414", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 44.0865, -91.6685 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/widm5/5673956864827986414.jpeg", "caption": "Downstream view at Winona Dam 5A, September 11th, 2012" } }, { "id": "5711875494701830638", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 44.0865, -91.6685 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/widm5/5711875494701830638.jpeg", "caption": "Downstream view at Winona Dam 5A, 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_05a" }, { "abbrev": "USGS", "text": "05378490", "title": "Observations courtesy of U.S. Geological Survey", "url": "https://waterdata.usgs.gov/monitoring-location/05378490/" } ], "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": "MSCM5", "downstreamLid": "WNAM5", "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" }