Chabot reservoir
Chabot
Chabot Reservoir is a man-made lake located in Alameda County, California. It was created in 1874 by the construction of an earthen dam across San Leandro Creek to provide water for the growing population of Oakland. The reservoir has a capacity of 3.2 billion gallons and is used as a major water supply source for the East Bay Municipal Utility District. The hydrology of Chabot is primarily fed by San Leandro Creek and a network of smaller tributaries. The snowpack from the Sierra Nevada Mountains also contributes to the reservoir's water supply. The water from Chabot is mainly used for domestic purposes, irrigation, and recreation. The reservoir is a popular spot for fishing, boating, hiking, and picnicking. The surrounding area is also home to several parks, including the Anthony Chabot Regional Park.
Daily levels at Chabot
Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.
Storage
acre-ft · code 2
Pool Elevation
ft · code 1
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Chabot -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| San Lorenzo C A San Lorenzo Ca | 2 cfs | → |
| Cull C Ab Cull C Res Nr Castro Valley Ca | 0 cfs | → |
| Castro Valley C A Hayward Ca | 0 cfs | → |
| San Lorenzo C A Hayward Ca | 1 cfs | → |
| Crow C Nr Hayward Ca | 0 cfs | → |
| San Lorenzo C Ab Don Castro Res Nr Castro V Ca | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Chabot.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Chabot
Where does the data for Chabot come from?
Daily storage, pool elevation, and release rates are sourced from USGS, USBR, and USACE monitoring stations. Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
Storage observations are updated daily by the operating agency. The 15-day weather forecast refreshes throughout the day. Snoflo caches and renders the most recent observation -- check the "as of" timestamp on the storage card.
What does the Hazard hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card below for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.