{"site_no":"05533000","name":"Flag Creek Near Willow Springs, IL","slug":"flag-creek-near-willow-springs-il","url":"https://streamflowdata.com/stations/flag-creek-near-willow-springs-il","state":"IL","county":"Cook County","lat":41.7389444,"lng":-87.8968611,"drainage_area_sqmi":16.5,"datum_ft":606.02,"huc_code":"07120004","river":{"name":"Flag Creek","slug":"flag-creek-il"},"current":{"reading_time":"2026-05-30T00:15:00+00:00","discharge_cfs":12.3,"gage_height_ft":3.22},"flood_stage":{"action_stage_ft":9,"flood_stage_ft":10,"moderate_flood_ft":12,"major_flood_ft":13},"today_statistics":{"month":6,"day":11,"p10":6.8,"p25":9.8,"p50":17,"p75":33,"p95":147},"recent_daily_values":[{"date":"2026-05-28","discharge_cfs":12.6,"gage_height_ft":3.22},{"date":"2026-05-27","discharge_cfs":14.4,"gage_height_ft":3.27},{"date":"2026-05-26","discharge_cfs":16.9,"gage_height_ft":3.32},{"date":"2026-05-25","discharge_cfs":24.2,"gage_height_ft":3.44},{"date":"2026-05-24","discharge_cfs":73.9,"gage_height_ft":3.9},{"date":"2026-05-23","discharge_cfs":12.3,"gage_height_ft":3.22},{"date":"2026-05-22","discharge_cfs":12.1,"gage_height_ft":3.21},{"date":"2026-05-21","discharge_cfs":12.8,"gage_height_ft":3.23},{"date":"2026-05-20","discharge_cfs":13.8,"gage_height_ft":3.25},{"date":"2026-05-19","discharge_cfs":16.6,"gage_height_ft":3.31},{"date":"2026-05-18","discharge_cfs":26.8,"gage_height_ft":3.43},{"date":"2026-05-17","discharge_cfs":13.6,"gage_height_ft":3.25},{"date":"2026-05-16","discharge_cfs":14.2,"gage_height_ft":3.26},{"date":"2026-05-15","discharge_cfs":14.8,"gage_height_ft":3.27},{"date":"2026-04-20","discharge_cfs":42.1,"gage_height_ft":3.67},{"date":"2026-04-19","discharge_cfs":62.3,"gage_height_ft":3.86},{"date":"2026-04-18","discharge_cfs":153,"gage_height_ft":4.64},{"date":"2026-04-17","discharge_cfs":55.1,"gage_height_ft":3.78},{"date":"2026-04-16","discharge_cfs":65.6,"gage_height_ft":3.89},{"date":"2026-04-15","discharge_cfs":73,"gage_height_ft":3.95},{"date":"2026-04-14","discharge_cfs":29.9,"gage_height_ft":3.52},{"date":"2026-04-13","discharge_cfs":35.1,"gage_height_ft":3.59},{"date":"2026-04-12","discharge_cfs":25.1,"gage_height_ft":3.46},{"date":"2026-04-11","discharge_cfs":29.9,"gage_height_ft":3.53},{"date":"2026-04-10","discharge_cfs":49,"gage_height_ft":3.73},{"date":"2026-04-09","discharge_cfs":26.9,"gage_height_ft":3.48},{"date":"2026-04-08","discharge_cfs":35.4,"gage_height_ft":3.59},{"date":"2026-04-07","discharge_cfs":43.3,"gage_height_ft":3.68},{"date":"2026-04-06","discharge_cfs":64.6,"gage_height_ft":3.88},{"date":"2026-04-05","discharge_cfs":104,"gage_height_ft":4.22},{"date":"2026-04-04","discharge_cfs":230,"gage_height_ft":5.24},{"date":"2026-04-03","discharge_cfs":259,"gage_height_ft":5.34},{"date":"2026-04-02","discharge_cfs":160,"gage_height_ft":4.6},{"date":"2026-04-01","discharge_cfs":31.5,"gage_height_ft":3.55},{"date":"2026-03-31","discharge_cfs":57.2,"gage_height_ft":3.81},{"date":"2026-03-30","discharge_cfs":23,"gage_height_ft":3.42},{"date":"2026-03-29","discharge_cfs":23.6,"gage_height_ft":3.44},{"date":"2026-03-27","discharge_cfs":62.3,"gage_height_ft":3.86},{"date":"2026-03-26","discharge_cfs":47.5,"gage_height_ft":3.64},{"date":"2026-03-25","discharge_cfs":19.6,"gage_height_ft":3.37},{"date":"2026-03-24","discharge_cfs":20.8,"gage_height_ft":3.39},{"date":"2026-03-23","discharge_cfs":22.2,"gage_height_ft":3.41},{"date":"2026-03-22","discharge_cfs":25.1,"gage_height_ft":3.46},{"date":"2026-03-21","discharge_cfs":31.9,"gage_height_ft":3.55},{"date":"2026-03-20","discharge_cfs":38.9,"gage_height_ft":3.64},{"date":"2026-03-19","discharge_cfs":46.6,"gage_height_ft":3.72},{"date":"2026-03-18","discharge_cfs":65.1,"gage_height_ft":3.88},{"date":"2026-03-17","discharge_cfs":101,"gage_height_ft":4.2},{"date":"2026-03-16","discharge_cfs":299,"gage_height_ft":5.57},{"date":"2026-03-15","discharge_cfs":210,"gage_height_ft":4.54},{"date":"2026-03-14","discharge_cfs":39.6,"gage_height_ft":3.64},{"date":"2026-03-13","discharge_cfs":64.5,"gage_height_ft":3.88},{"date":"2026-03-12","discharge_cfs":112,"gage_height_ft":4.3},{"date":"2026-03-11","discharge_cfs":302,"gage_height_ft":5.65},{"date":"2026-03-10","discharge_cfs":116,"gage_height_ft":4.06},{"date":"2026-03-09","discharge_cfs":27.5,"gage_height_ft":3.49},{"date":"2026-03-08","discharge_cfs":38.2,"gage_height_ft":3.63},{"date":"2026-03-07","discharge_cfs":72.5,"gage_height_ft":3.94},{"date":"2026-03-06","discharge_cfs":47.1,"gage_height_ft":3.63},{"date":"2026-03-05","discharge_cfs":16,"gage_height_ft":3.3}],"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)."}