{"site_no":"04116500","name":"Flat River at Smyrna, MI","slug":"flat-river-at-smyrna-mi","url":"https://streamflowdata.com/stations/flat-river-at-smyrna-mi","state":"MI","county":"Ionia County","lat":43.0528093,"lng":-85.2647392,"drainage_area_sqmi":528,"datum_ft":729.14,"huc_code":"04050006","river":{"name":"Flat River","slug":"flat-river-mi"},"current":{"reading_time":"2026-05-30T00:00:00+00:00","discharge_cfs":null,"gage_height_ft":3.82},"flood_stage":{"action_stage_ft":5.5,"flood_stage_ft":8.5,"moderate_flood_ft":9.5,"major_flood_ft":10.5},"today_statistics":{"month":6,"day":11,"p10":189,"p25":249,"p50":327,"p75":424,"p95":784},"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)."}