Storage Levels Hydrology Weather

California San Pablo Bay Watershed

Lake Hennessey

June 9 2023

29,917 acre-ft

None% today
None% of Normal Very Low

Water storage levels at Lake Hennessey are currently 29,917 acre-ft, about None% of normal. The average for this time of year is approximately Noneacre-ft.

Maximum recorded Storage since record keeping began in 2022 was 2023-03-21 when levels reached 32,943 acre-ft. Lowest recorded Storage was 2022-12-26 when levels receded to 60 acre-ft.

Lake Hennessey is a freshwater reservoir located in the Napa Valley of California. The lake was named after one of the first settlers in the area, Charles Hennessey. The primary source of the lake's water is the Conn Creek watershed. The lake also receives water from the Rector Creek and Milliken Reservoir. The lake is managed by the Napa County Flood Control and Water Conservation District. The lake's water is used for agricultural purposes, including vineyards and orchards in the Napa Valley. The lake is also used for recreational activities such as fishing and boating. The lake's depth, size, and water quality make it an ideal location for water sports and fishing. The lake's hydrology is characterized by a surface flow and snowpack providers. The surface flow is a result of rainfall and snowmelt, while the snowpack providers are the Sierra Nevada Mountains.

Geolocation -122.372, 38.482
Elevation 331 ft
Storage 24hr Change None%
Percent of Normal None%
Minimum 60 acre-ft
Maximum 32,943 acre-ft
Average acre-ft
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