Stony Gorge Reservoir reservoir
Stony Gorge Reservoir
Stony Gorge Reservoir is a man-made lake located in the Sacramento Valley in California. The reservoir was created in 1962 by the Stony Gorge Dam, which is used for irrigation and flood control. The reservoir has a storage capacity of 93,000 acre-feet and covers an area of 7.5 square miles.
The hydrology of Stony Gorge Reservoir is primarily fed by the East Branch of the Stony Creek, which is a major tributary of the Sacramento River. The reservoir also receives water from the snowpack in the nearby mountains.
The reservoir serves as a surface water source for agricultural uses in the surrounding region. In addition, the reservoir is a popular destination for recreational activities such as boating, fishing, and camping. The reservoir is managed by the United States Bureau of Reclamation.
Daily levels at Stony Gorge Reservoir
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 Stony Gorge Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Nf Cache C A Hough Spring Nr Clearlake Oaks Ca | 31 cfs | → |
| Elder C Nr Paskenta Ca | 12 cfs | → |
| Nf Cache C Nr Clearlake Oaks Ca | 257 cfs | → |
| Sacramento R A Colusa Ca | 8,380 cfs | → |
| Ef Russian R Nr Calpella Ca | 28 cfs | → |
| Mill C Nr Los Molinos Ca | 160 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Stony Gorge Reservoir.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Stony Gorge Reservoir
Where does the data for Stony Gorge Reservoir 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.