Scotts Flat reservoir
Scotts Flat
Scotts Flat is a reservoir located in Nevada County, California, USA. It was created in the early 1940s by the Pacific Gas and Electric Company to supply water for hydroelectric power generation. The reservoir is fed by two small creeks, Deer and Greenhorn, and has a capacity of 49,000 acre-feet. The surrounding forests and slopes also provide water to the reservoir, which is used for irrigation purposes, providing water to nearby farms and vineyards. The dam's construction was a massive and complicated process, requiring the relocation of many people and the construction of roads and bridges. Today, Scotts Flat is a popular recreational area for fishing, boating, and swimming. The lake is also a provider of water to the local community, and the surrounding forests offer ample opportunities for hiking, camping, and other outdoor activities.
Daily levels at Scotts Flat
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 Scotts Flat -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| N Yuba R Bl Goodyears Bar Ca | 176 cfs | → |
| Deer C Nr Smartville Ca | 2 cfs | → |
| Nf American R A North Fork Dam Ca | 93 cfs | → |
| Pilot C Bl Mutton Canyon Nr Georgetown Ca | 2 cfs | → |
| Pilot C Ab Stumpy Meadows Res Ca | 3 cfs | → |
| Bear R Nr Wheatland Ca | 23 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Scotts Flat.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Scotts Flat
Where does the data for Scotts Flat 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.