{ "lid": "MCGI4", "usgsId": "05389500", "reachId": "937060031", "name": "Mississippi River at McGregor", "description": "", "rfc": { "abbreviation": "NCRFC", "name": "North Central River Forecast Center" }, "wfo": { "abbreviation": "ARX", "name": "La Crosse" }, "state": { "abbreviation": "IA", "name": "Iowa" }, "county": "Clayton", "timeZone": "CST6CDT", "latitude": 43.027, "longitude": -91.1726, "pedts": { "observed": "HGIRG", "forecast": "HGIFF" }, "status": { "observed": { "primary": 6.48, "primaryUnit": "ft", "secondary": -999, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T01:45:00Z" }, "forecast": { "primary": 6.5, "primaryUnit": "ft", "secondary": -999, "secondaryUnit": "kcfs", "floodCategory": "no_flooding", "validTime": "2026-08-31T06:00:00Z" } }, "flood": { "stageUnits": "ft", "flowUnits": "cfs", "categories": { "major": { "stage": 22, "flow": -9999 }, "moderate": { "stage": 19, "flow": -9999 }, "minor": { "stage": 16, "flow": -9999 }, "action": { "stage": 13, "flow": -9999 } }, "lro": { "minorCS": "< 0.05", "moderateCS": "< 0.05", "majorCS": "< 0.05", "producedTime": "2026-08-28T02:02:37Z", "interval": "SON" }, "crests": { "historic": [ { "occurredTime": "1965-04-24T00:00:00Z", "stage": 25.38, "flow": 276000, "preliminary": "R", "olddatum": false }, { "occurredTime": "2001-04-20T16:00:00Z", "stage": 23.75, "flow": 248000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-28T04:30:00Z", "stage": 22.91, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "1993-06-29T00:00:00Z", "stage": 21.98, "flow": 189000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-26T16:15:00Z", "stage": 21.75, "flow": 208495, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-22T00:00:00Z", "stage": 21.58, "flow": 215000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-15T00:00:00Z", "stage": 21.38, "flow": 201000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-18T07:00:00Z", "stage": 21.32, "flow": 182000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-05T00:00:00Z", "stage": 21.12, "flow": 183000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1880-06-22T00:00:00Z", "stage": 21, "flow": 196000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-23T00:00:00Z", "stage": 20.89, "flow": 197500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-22T00:00:00Z", "stage": 20.83, "flow": 185700, "preliminary": "O", "olddatum": false }, { "occurredTime": "2024-07-05T23:30:00Z", "stage": 20.75, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-10T00:00:00Z", "stage": 20.71, "flow": 170000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1987-10-01T00:00:00Z", "stage": 20.2, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-10-04T00:00:00Z", "stage": 20.2, "flow": 158000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-03-22T00:00:00Z", "stage": 20.15, "flow": 151000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-10T00:00:00Z", "stage": 20.1, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-10-02T06:00:00Z", "stage": 19.43, "flow": 177000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-06-02T20:15:00Z", "stage": 19.09, "flow": 173079, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-16T00:00:00Z", "stage": 19, "flow": 145000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1954-05-11T00:00:00Z", "stage": 18.66, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-04-28T00:00:00Z", "stage": 18.5, "flow": 143000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1938-09-18T00:00:00Z", "stage": 18.37, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-26T00:00:00Z", "stage": 17.96, "flow": 139000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1971-04-20T00:00:00Z", "stage": 17.7, "flow": 138000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-06-07T00:00:00Z", "stage": 17.67, "flow": 113800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-04-23T00:00:00Z", "stage": 17.3, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-06-18T23:00:00Z", "stage": 17.3, "flow": 150000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1998-04-08T00:00:00Z", "stage": 17.25, "flow": 126000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1976-04-08T00:00:00Z", "stage": 17.21, "flow": 125000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-04-22T00:00:00Z", "stage": 17.17, "flow": 121000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2008-04-27T17:00:00Z", "stage": 17.02, "flow": 145000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2003-05-20T05:00:00Z", "stage": 16.88, "flow": 115000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-09-29T05:30:00Z", "stage": 16.87, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-06-28T00:00:00Z", "stage": 16.84, "flow": 124600, "preliminary": "O", "olddatum": false }, { "occurredTime": "1945-03-29T00:00:00Z", "stage": 16.8, "flow": 127700, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-10-12T19:45:00Z", "stage": 16.77, "flow": 142772, "preliminary": "P", "olddatum": false }, { "occurredTime": "1937-05-06T00:00:00Z", "stage": 16.68, "flow": 54700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-04-30T00:00:00Z", "stage": 16.58, "flow": 133000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-04-20T21:30:00Z", "stage": 16.53, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1972-04-28T00:00:00Z", "stage": 16.3, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2013-05-11T19:15:00Z", "stage": 16.22, "flow": 117000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-05-11T00:00:00Z", "stage": 16.2, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1944-06-24T00:00:00Z", "stage": 16.17, "flow": 122500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1960-05-15T00:00:00Z", "stage": 16.1, "flow": 83100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-04-24T00:00:00Z", "stage": 16, "flow": -9999, "preliminary": "O", "olddatum": false } ], "recent": [ { "occurredTime": "2024-07-05T23:30:00Z", "stage": 20.75, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "2023-04-28T04:30:00Z", "stage": 22.91, "flow": 0, "preliminary": "P", "olddatum": false }, { "occurredTime": "2019-10-12T19:45:00Z", "stage": 16.77, "flow": 142772, "preliminary": "P", "olddatum": false }, { "occurredTime": "2019-06-02T20:15:00Z", "stage": 19.09, "flow": 173079, "preliminary": "O", "olddatum": false }, { "occurredTime": "2019-04-26T16:15:00Z", "stage": 21.75, "flow": 208495, "preliminary": "O", "olddatum": false }, { "occurredTime": "2016-09-29T05:30:00Z", "stage": 16.87, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2014-04-20T21:30:00Z", "stage": 16.53, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "2013-05-11T19:15:00Z", "stage": 16.22, "flow": 117000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2011-04-18T07:00:00Z", "stage": 21.32, "flow": 182000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2010-10-02T06:00:00Z", "stage": 19.43, "flow": 177000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2008-04-27T17:00:00Z", "stage": 17.02, "flow": 145000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2004-06-18T23:00:00Z", "stage": 17.3, "flow": 150000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2003-05-20T05:00:00Z", "stage": 16.88, "flow": 115000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2002-04-22T00:00:00Z", "stage": 17.17, "flow": 121000, "preliminary": "O", "olddatum": false }, { "occurredTime": "2001-04-20T16:00:00Z", "stage": 23.75, "flow": 248000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1998-04-08T00:00:00Z", "stage": 17.25, "flow": 126000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1997-04-15T00:00:00Z", "stage": 21.38, "flow": 201000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1996-04-28T00:00:00Z", "stage": 18.5, "flow": 143000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-06-29T00:00:00Z", "stage": 21.98, "flow": 189000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-05-11T00:00:00Z", "stage": 16.2, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1993-04-23T00:00:00Z", "stage": 17.3, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1987-10-01T00:00:00Z", "stage": 20.2, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-10-04T00:00:00Z", "stage": 20.2, "flow": 158000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1986-04-10T00:00:00Z", "stage": 20.1, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1983-03-16T00:00:00Z", "stage": 19, "flow": 145000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1982-04-26T00:00:00Z", "stage": 17.96, "flow": 139000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1979-04-30T00:00:00Z", "stage": 16.58, "flow": 133000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1976-04-08T00:00:00Z", "stage": 17.21, "flow": 125000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1975-05-05T00:00:00Z", "stage": 21.12, "flow": 183000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-04-24T00:00:00Z", "stage": 16, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1973-03-22T00:00:00Z", "stage": 20.15, "flow": 151000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1972-04-28T00:00:00Z", "stage": 16.3, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1971-04-20T00:00:00Z", "stage": 17.7, "flow": 138000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1969-04-22T00:00:00Z", "stage": 21.58, "flow": 215000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1967-04-10T00:00:00Z", "stage": 20.71, "flow": 170000, "preliminary": "O", "olddatum": false }, { "occurredTime": "1965-04-24T00:00:00Z", "stage": 25.38, "flow": 276000, "preliminary": "R", "olddatum": false }, { "occurredTime": "1960-05-15T00:00:00Z", "stage": 16.1, "flow": 83100, "preliminary": "O", "olddatum": false }, { "occurredTime": "1954-05-11T00:00:00Z", "stage": 18.66, "flow": -9999, "preliminary": "O", "olddatum": false }, { "occurredTime": "1952-04-23T00:00:00Z", "stage": 20.89, "flow": 197500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1951-04-22T00:00:00Z", "stage": 20.83, "flow": 185700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1945-03-29T00:00:00Z", "stage": 16.8, "flow": 127700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1944-06-24T00:00:00Z", "stage": 16.17, "flow": 122500, "preliminary": "O", "olddatum": false }, { "occurredTime": "1943-06-28T00:00:00Z", "stage": 16.84, "flow": 124600, "preliminary": "O", "olddatum": false }, { "occurredTime": "1942-06-07T00:00:00Z", "stage": 17.67, "flow": 113800, "preliminary": "O", "olddatum": false }, { "occurredTime": "1938-09-18T00:00:00Z", "stage": 18.37, "flow": 0, "preliminary": "O", "olddatum": false }, { "occurredTime": "1937-05-06T00:00:00Z", "stage": 16.68, "flow": 54700, "preliminary": "O", "olddatum": false }, { "occurredTime": "1880-06-22T00:00:00Z", "stage": 21, "flow": 196000, "preliminary": "O", "olddatum": false } ] }, "lowWaters": { "historic": [] }, "impacts": [ { "stage": 27.9, "statement": "The water overtops the levee." }, { "stage": 25.4, "statement": "The water reaches the flood of record set in 1965." }, { "stage": 25, "statement": "Major flooding occurs in McGregor." }, { "stage": 23.5, "statement": "The road near the casino in Marquette is closed." }, { "stage": 22, "statement": "Water covers the north end of Main Street." }, { "stage": 21.5, "statement": "Railroad tracks near the casino in Marquette are closed." }, { "stage": 19.6, "statement": "The road to the Prairie du Chien waste water treatment facility is flooded." }, { "stage": 19, "statement": "Flooding of some residential areas begin." }, { "stage": 18, "statement": "Pumping operations begin at the Prairie du Chien waste water treatment facility." }, { "stage": 17, "statement": "Minor lowland flooding begins, and access to parks near the river in Prairie du Chien is affected." }, { "stage": 16.5, "statement": "Water may begin to go over the road covering part of Highway C near Highway 18." }, { "stage": 16, "statement": "The Washington Street Bridge to Saint Feriole Island begins to flood and is closed. Pumping operations are underway." } ] }, "images": { "probability": { "weekint": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/MCGI4.SSTG.prob.weekint.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/MCGI4.QINE.prob.weekint.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/MCGI4.volume.prob.weekint.gif" }, "entperiod": { "stage": "https://water.noaa.gov/resources/probabilistic/exceedance/MCGI4.SSTG.exceed.90day.gif", "flow": "https://water.noaa.gov/resources/probabilistic/exceedance/MCGI4.QINE.exceed.90day.gif", "volume": "https://water.noaa.gov/resources/probabilistic/exceedance/MCGI4.volume.exceed.90day.gif" }, "shortrange": "https://water.noaa.gov/resources/probabilistic/short_term/MCGI4.shortrange.hefs.png" }, "hydrograph": { "default": "https://water.noaa.gov/resources/hydrographs/mcgi4_hg.png", "floodcat": "https://water.noaa.gov/resources/hydrographs/mcgi4_record.png" }, "photos": [ { "id": "9699776839768084974", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 43.027, -91.1726 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/mcgi4/9699776839768084974.jpeg", "caption": "Downstream view at McGregor, October 21st, 2014, Stage = 8.90 ft" } }, { "id": "10815973032509641198", "type": "Feature", "geometry": { "type": "Point", "coordinates": [ 43.027, -91.1726 ] }, "properties": { "image": "https://water.noaa.gov/resources/photos/mcgi4/10815973032509641198.jpeg", "caption": "Upstream view at McGregor, October 21st, 2014, Stage = 8.90 ft" } } ] }, "dataAttribution": [ { "abbrev": "US Geological Survey", "text": "05389500", "title": "Observations courtesy of U.S. Geological Survey", "url": "https://waterdata.usgs.gov/monitoring-location/05389500/" } ], "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": [ { "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": 604.5 } ] }, "horizontal": { "value": [] }, "notes": { "value": [] } }, "inundation": { "enabled": false, "url": "", "zeroDatum": null, "downloads": null, "siteSpecificInfo": "", "dataAttribution": [] }, "upstreamLid": "LYNW3", "downstreamLid": "CLAI4", "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" }