Lake Level Reports
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Harry S. Truman & Bagnell Dam Daily Report
Daily reports on water levels, discharge data, and flow data.
Lake Ozark Guide Curve
A series of target elevations for each day over the course of a given year.
Osage Headwater & Tailwater Readings
Hourly head level, tail level, and discharge in cubic feet per second.
Lake Level Forecast
08/14/2025 6:52 AM
| Current Lake level is | 660.0 |
|---|---|
| River Level is | 564.9 |
| Surface Water Temp is | 84 |
| HST Lake Level is | 705.6 |
| Today | Tomorrow | Day 3 | |
|---|---|---|---|
| Forecasted Releases (cfs) | 8,000 | 8,000 | 4,000 |
| Forecasted Lake Level | 659.9 | 659.8 | 659.8 |
Discussion
Depending on power needs and weather conditions, expect light generation through the weekend.
Safety Information
Ameren personnel conduct daily inspections of the dam to ensure all equipment is functioning properly and the structure remains sound. A specialized team of engineers perform quarterly inspections and the dam receives an annual inspection by the federal government.
Warning Siren
A warning system is in place to alert residents and visitors of emergencies at Bagnell Dam. The alert will be a distinct tone followed by voice instructions. If you are downstream of Bagnell Dam and hear the sirens, seek higher ground immediately. A dam failure would increase water debris current and the amount of drift on the Lake. Swimmers and boaters near the dam who notice these conditions should move to shore immediately. Sirens are tested at noon on the first Wednesday of the month and state “this is a test.”