{"name":"Great Lakes gauges","system":"water","subsystem":"great_lakes","tier":"LIVE","source":"NOAA CO-OPS water level API (IGLD85)","url":"https://api.tidesandcurrents.noaa.gov/","data_date":"2026-10-20","n":6,"points":[{"lat":46.7758,"lon":-92.092,"name":"Lake Superior \u2014 Duluth, MN gauge","lake":"Superior","value":183.535,"unit":"m IGLD85","data_date":"2026-10-20","lta_m":null,"vs_lta_m":null,"station":"9099064"},{"lat":41.7297,"lon":-87.5383,"name":"Lake Michigan-Huron \u2014 Calumet Harbor, IL gauge","lake":"Michigan-Huron","value":176.554,"unit":"m IGLD85","data_date":"2026-10-20","lta_m":null,"vs_lta_m":null,"station":"9087044"},{"lat":43.8464,"lon":-82.6431,"name":"Lake Michigan-Huron \u2014 Harbor Beach, MI gauge","lake":"Michigan-Huron","value":176.432,"unit":"m IGLD85","data_date":"2026-10-20","lta_m":null,"vs_lta_m":null,"station":"9075014"},{"lat":42.4732,"lon":-82.8792,"name":"Lake St. Clair \u2014 St. Clair Shores, MI gauge","lake":"St. Clair","value":175.161,"unit":"m IGLD85","data_date":"2026-10-20","lta_m":null,"vs_lta_m":null,"station":"9034052"},{"lat":41.5409,"lon":-81.6355,"name":"Lake Erie \u2014 Cleveland, OH gauge","lake":"Erie","value":174.244,"unit":"m IGLD85","data_date":"2026-10-20","lta_m":null,"vs_lta_m":null,"station":"9063063"},{"lat":43.269,"lon":-77.6258,"name":"Lake Ontario \u2014 Rochester, NY gauge","lake":"Ontario","value":74.825,"unit":"m IGLD85","data_date":"2026-10-20","lta_m":null,"vs_lta_m":null,"station":"9052058"}],"summary":{"gauges":6},"note":"Single-gauge readings, not the lake-wide coordinated monthly mean. Long-term averages pending the USACE monthly bulletin.","fetched_utc":"2026-10-20T15:08:07+00:00","ok":true,"stale":false}