{"site_no":"06467500","name":"Missouri River at Yankton, SD","slug":"missouri-river-at-yankton-sd","url":"https://streamflowdata.com/stations/missouri-river-at-yankton-sd","state":"SD","county":"Yankton County","lat":42.8660899,"lng":-97.3939586,"drainage_area_sqmi":279500,"datum_ft":1139.97,"huc_code":"10170101","river":{"name":"Missouri River","slug":"missouri-river"},"current":{"reading_time":"2026-05-30T00:30:00+00:00","discharge_cfs":null,"gage_height_ft":10.27},"flood_stage":{"action_stage_ft":18,"flood_stage_ft":20,"moderate_flood_ft":21,"major_flood_ft":23},"today_statistics":{"month":6,"day":11,"p10":22800,"p25":27800,"p50":29900,"p75":34100,"p95":43300},"recent_daily_values":[],"sources":{"usgs_nwis":"https://waterdata.usgs.gov/nwis","noaa_nwps":"https://api.water.noaa.gov/nwps/v1"},"license":"USGS data is in the public domain. Attribution: USGS National Water Information System (NWIS)."}