{"site_no":"06885500","name":"Black Vermillion River near Frankfort, KS","slug":"black-vermillion-river-near-frankfort-ks","url":"https://streamflowdata.com/stations/black-vermillion-river-near-frankfort-ks","state":"KS","county":"Marshall County","lat":39.6819435,"lng":-96.4427888,"drainage_area_sqmi":410,"datum_ft":1107.09,"huc_code":"10270205","river":{"name":"Black Vermillion River","slug":"black-vermillion-river-ks"},"current":{"reading_time":"2026-05-30T00:30:00+00:00","discharge_cfs":95.3,"gage_height_ft":3.34},"flood_stage":{"action_stage_ft":14,"flood_stage_ft":19,"moderate_flood_ft":27.5,"major_flood_ft":40.5},"today_statistics":{"month":6,"day":11,"p10":7.4,"p25":27,"p50":83,"p75":201,"p95":2800},"recent_daily_values":[{"date":"2026-05-28","discharge_cfs":64.1,"gage_height_ft":3.11},{"date":"2026-05-27","discharge_cfs":69.2,"gage_height_ft":3.14},{"date":"2026-05-26","discharge_cfs":78.4,"gage_height_ft":3.22},{"date":"2026-05-25","discharge_cfs":90.1,"gage_height_ft":3.3},{"date":"2026-05-24","discharge_cfs":111,"gage_height_ft":3.49},{"date":"2026-05-23","discharge_cfs":145,"gage_height_ft":3.81},{"date":"2026-05-22","discharge_cfs":165,"gage_height_ft":3.97},{"date":"2026-05-21","discharge_cfs":211,"gage_height_ft":4.34},{"date":"2026-05-20","discharge_cfs":361,"gage_height_ft":5.39},{"date":"2026-05-19","discharge_cfs":2600,"gage_height_ft":12.37},{"date":"2026-05-18","discharge_cfs":346,"gage_height_ft":4.99},{"date":"2026-05-16","discharge_cfs":42.1,"gage_height_ft":2.93},{"date":"2026-05-15","discharge_cfs":43.6,"gage_height_ft":2.94},{"date":"2026-04-20","discharge_cfs":113,"gage_height_ft":3.44},{"date":"2026-04-19","discharge_cfs":126,"gage_height_ft":3.57},{"date":"2026-04-18","discharge_cfs":151,"gage_height_ft":3.79},{"date":"2026-04-17","discharge_cfs":196,"gage_height_ft":4.15},{"date":"2026-04-16","discharge_cfs":268,"gage_height_ft":4.69},{"date":"2026-04-15","discharge_cfs":406,"gage_height_ft":5.65},{"date":"2026-04-14","discharge_cfs":642,"gage_height_ft":7.03},{"date":"2026-04-13","discharge_cfs":1090,"gage_height_ft":9.06},{"date":"2026-04-12","discharge_cfs":5140,"gage_height_ft":18.51},{"date":"2026-04-11","discharge_cfs":6330,"gage_height_ft":19.52},{"date":"2026-04-10","discharge_cfs":954,"gage_height_ft":8.12},{"date":"2026-04-09","discharge_cfs":37.1,"gage_height_ft":2.84},{"date":"2026-04-08","discharge_cfs":33.6,"gage_height_ft":2.81},{"date":"2026-04-07","discharge_cfs":32.8,"gage_height_ft":2.8},{"date":"2026-04-06","discharge_cfs":34.1,"gage_height_ft":2.81},{"date":"2026-04-05","discharge_cfs":36.1,"gage_height_ft":2.83},{"date":"2026-04-04","discharge_cfs":41,"gage_height_ft":2.86},{"date":"2026-04-03","discharge_cfs":45.8,"gage_height_ft":2.89},{"date":"2026-04-02","discharge_cfs":37.6,"gage_height_ft":2.84},{"date":"2026-04-01","discharge_cfs":32.1,"gage_height_ft":2.8},{"date":"2026-03-31","discharge_cfs":32.9,"gage_height_ft":2.81},{"date":"2026-03-30","discharge_cfs":33,"gage_height_ft":2.81},{"date":"2026-03-29","discharge_cfs":30.9,"gage_height_ft":2.79},{"date":"2026-03-28","discharge_cfs":30.8,"gage_height_ft":2.79},{"date":"2026-03-27","discharge_cfs":33.2,"gage_height_ft":2.81},{"date":"2026-03-26","discharge_cfs":36.9,"gage_height_ft":2.83},{"date":"2026-03-25","discharge_cfs":35.6,"gage_height_ft":2.82},{"date":"2026-03-24","discharge_cfs":34.5,"gage_height_ft":2.82},{"date":"2026-03-23","discharge_cfs":34.2,"gage_height_ft":2.81},{"date":"2026-03-22","discharge_cfs":37.5,"gage_height_ft":2.84},{"date":"2026-03-21","discharge_cfs":38.7,"gage_height_ft":2.84},{"date":"2026-03-20","discharge_cfs":39.7,"gage_height_ft":2.85},{"date":"2026-03-19","discharge_cfs":39.6,"gage_height_ft":2.85},{"date":"2026-03-18","discharge_cfs":39.7,"gage_height_ft":2.85},{"date":"2026-03-17","discharge_cfs":35.7,"gage_height_ft":2.82},{"date":"2026-03-16","discharge_cfs":30.3,"gage_height_ft":2.78},{"date":"2026-03-15","discharge_cfs":36.5,"gage_height_ft":2.83},{"date":"2026-03-14","discharge_cfs":36.5,"gage_height_ft":2.83},{"date":"2026-03-13","discharge_cfs":38.2,"gage_height_ft":2.84},{"date":"2026-03-12","discharge_cfs":43,"gage_height_ft":2.87},{"date":"2026-03-11","discharge_cfs":47.1,"gage_height_ft":2.9},{"date":"2026-03-10","discharge_cfs":51.1,"gage_height_ft":2.93},{"date":"2026-03-09","discharge_cfs":58.2,"gage_height_ft":2.99},{"date":"2026-03-08","discharge_cfs":81.4,"gage_height_ft":3.17},{"date":"2026-03-07","discharge_cfs":113,"gage_height_ft":3.45},{"date":"2026-03-06","discharge_cfs":50.6,"gage_height_ft":2.93},{"date":"2026-03-05","discharge_cfs":39,"gage_height_ft":2.85}],"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)."}