Warner Lake

Warner Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. Secchi readings are the weakest of the three parameters, suggesting suspended sediment or algal biomass dominates the optical signal.

A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. The lake bottoms out at 38 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 37 acres, Warner Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Within Stearns County's 55 graded lakes, Warner Lake ranks 31 — below the local median, though not at the bottom.

Warner Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The fishery includes walleye alongside the lake's other 12 documented species — a notable draw for Minnesota anglers. A documented public access point at Warner Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.