Afterbay Reservoir Water Level History
Thirty-day lake-level chart, recent highs and lows, net change and daily summaries from the matched USGS station.
Afterbay Reservoir water-level chart
Source: U.S. Geological Survey monitoring station ↗. Recent measurements may be provisional.
What has Afterbay Reservoir been doing?
Across the available 30-day series, Afterbay Reservoir is falling overall. The measured range runs from 364.52 ft to 365.67 ft, with a net change of -1.14 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 | 364.52 ft | 364.56 ft | 364.57 ft |
| Oct 6 | 364.54 ft | 364.59 ft | 364.62 ft |
| Oct 5 | 364.61 ft | 364.63 ft | 364.65 ft |
| Oct 4 | 364.65 ft | 364.66 ft | 364.67 ft |
| Oct 3 | 364.65 ft | 364.69 ft | 364.72 ft |
| Oct 2 | 364.70 ft | 364.73 ft | 364.75 ft |
| Oct 1 | 364.74 ft | 364.77 ft | 364.79 ft |
| Sep 30 | 364.79 ft | 364.81 ft | 364.83 ft |
| Sep 29 | 364.83 ft | 364.85 ft | 364.87 ft |
| Sep 28 | 364.87 ft | 364.88 ft | 364.90 ft |
| Sep 27 | 364.89 ft | 364.92 ft | 364.95 ft |
| Sep 26 | 364.94 ft | 364.97 ft | 365.00 ft |
| Sep 25 | 364.98 ft | 365.01 ft | 365.04 ft |
| Sep 24 | 365.02 ft | 365.05 ft | 365.08 ft |
| Sep 23 | 365.00 ft | 365.06 ft | 365.10 ft |
| Sep 22 | 365.01 ft | 365.06 ft | 365.09 ft |
| Sep 21 | 365.08 ft | 365.11 ft | 365.13 ft |
| Sep 20 | 365.13 ft | 365.15 ft | 365.18 ft |
| Sep 19 | 365.18 ft | 365.20 ft | 365.22 ft |
| Sep 18 | 365.22 ft | 365.24 ft | 365.26 ft |
| Sep 17 | 365.25 ft | 365.27 ft | 365.30 ft |
| Sep 16 | 365.30 ft | 365.32 ft | 365.35 ft |
| Sep 15 | 365.35 ft | 365.37 ft | 365.40 ft |
| Sep 14 | 365.39 ft | 365.42 ft | 365.45 ft |
| Sep 13 | 365.44 ft | 365.47 ft | 365.48 ft |
| Sep 12 | 365.37 ft | 365.43 ft | 365.45 ft |
| Sep 11 | 365.45 ft | 365.47 ft | 365.50 ft |
| Sep 10 | 365.49 ft | 365.52 ft | 365.55 ft |
| Sep 9 | 365.55 ft | 365.57 ft | 365.59 ft |
| Sep 8 | 365.59 ft | 365.62 ft | 365.64 ft |
Afterbay Reservoir level-history FAQ
How has Afterbay Reservoir water level changed over the last 30 days?
Across the available 30-day sensor series, the net change is -1.14 ft and the overall direction is falling.
What was the highest Afterbay Reservoir level in the last 30 days?
The highest reading in the available 30-day series is 365.67 ft.
What was the lowest Afterbay Reservoir level in the last 30 days?
The lowest reading in the available 30-day series is 364.52 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.