Michael J Kirwan Reservoir Water Level History
Thirty-day lake-level chart, recent highs and lows, net change and daily summaries from the matched USGS station.
Michael J Kirwan Reservoir water-level chart
Source: U.S. Geological Survey monitoring station ↗. Recent measurements may be provisional.
What has Michael J Kirwan Reservoir been doing?
Across the available 30-day series, Michael J Kirwan Reservoir is falling overall. The measured range runs from 981.79 ft to 983.26 ft, with a net change of -1.41 ft.
Lake levels can respond to rainfall, watershed inflow, dam and hydropower operations, seasonal target elevations, evaporation and downstream release requirements. This page reports what the matched sensor measured; it does not infer why an operator changed a reservoir.
Recent daily levels
| Date | Low | Average | High |
|---|---|---|---|
| Oct 7 | 981.79 ft | 981.83 ft | 981.87 ft |
| Oct 6 | 981.85 ft | 981.91 ft | 981.96 ft |
| Oct 5 | 981.94 ft | 981.99 ft | 982.05 ft |
| Oct 4 | 982.03 ft | 982.09 ft | 982.14 ft |
| Oct 3 | 982.13 ft | 982.18 ft | 982.23 ft |
| Oct 2 | 982.21 ft | 982.23 ft | 982.27 ft |
| Oct 1 | 982.25 ft | 982.31 ft | 982.37 ft |
| Sep 30 | 982.36 ft | 982.40 ft | 982.45 ft |
| Sep 29 | 982.43 ft | 982.49 ft | 982.54 ft |
| Sep 28 | 982.51 ft | 982.56 ft | 982.62 ft |
| Sep 27 | 982.57 ft | 982.63 ft | 982.70 ft |
| Sep 26 | 982.67 ft | 982.73 ft | 982.80 ft |
| Sep 25 | 982.75 ft | 982.83 ft | 982.88 ft |
| Sep 24 | 982.86 ft | 982.91 ft | 982.97 ft |
| Sep 23 | 982.93 ft | 982.98 ft | 983.03 ft |
| Sep 22 | 982.99 ft | 983.01 ft | 983.04 ft |
| Sep 21 | 982.94 ft | 982.98 ft | 983.03 ft |
| Sep 20 | 982.96 ft | 983.02 ft | 983.06 ft |
| Sep 19 | 983.04 ft | 983.09 ft | 983.12 ft |
| Sep 18 | 983.08 ft | 983.12 ft | 983.18 ft |
| Sep 17 | 983.14 ft | 983.18 ft | 983.21 ft |
| Sep 16 | 983.11 ft | 983.16 ft | 983.18 ft |
| Sep 15 | 983.16 ft | 983.20 ft | 983.24 ft |
| Sep 14 | 983.19 ft | 983.23 ft | 983.26 ft |
| Sep 13 | 983.20 ft | 983.23 ft | 983.26 ft |
| Sep 12 | 983.18 ft | 983.20 ft | 983.23 ft |
| Sep 11 | 983.18 ft | 983.22 ft | 983.23 ft |
| Sep 10 | 983.19 ft | 983.22 ft | 983.24 ft |
| Sep 9 | 983.17 ft | 983.21 ft | 983.25 ft |
| Sep 8 | 983.20 ft | 983.23 ft | 983.25 ft |
Michael J Kirwan Reservoir level-history FAQ
How has Michael J Kirwan Reservoir water level changed over the last 30 days?
Across the available 30-day sensor series, the net change is -1.41 ft and the overall direction is falling.
What was the highest Michael J Kirwan Reservoir level in the last 30 days?
The highest reading in the available 30-day series is 983.26 ft.
What was the lowest Michael J Kirwan Reservoir level in the last 30 days?
The lowest reading in the available 30-day series is 981.79 ft.
Are historical USGS lake readings final?
Not always. Recent readings may be marked provisional and can be revised by the source agency after quality review.