Washington Lake
As of September 16, 2026, Washington Lake is holding 1,772 acre-ft of water — 94% of normal storage for this date. Storage data refreshed throughout the day.
Washington Lake
Washington Lake in Utah is a natural freshwater lake situated in the southwestern Uinta Mountains. The lake was formed by a glacial activity that left behind a bowl-shaped basin. Historically, Washington Lake has been an important source of water for the surrounding agricultural lands. The lake's hydrology is primarily fed by snowmelt and precipitation, which cause fluctuations in the water levels. The lake is also a critical source of water for the Duchesne River, which provides drinking water, irrigation, and recreational opportunities to the local communities. Additionally, the lake is a popular destination for recreational activities such as fishing, boating, and camping. The surrounding areas are home to a variety of wildlife, including elk, deer, and black bears. Overall, Washington Lake is a vital resource for both the natural ecosystem and human communities in the region.
Daily levels at Washington Lake
Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.
Storage
acre-ft · code 17
Inflow
cfs · code 29
Pool Elevation
ft · code 49
Total Release
cfs · code 42
Inside the reservoir
The real shoreline of this water body, with a depth model scaled so the basin holds exactly its recorded storage. Drag to orbit, scroll to zoom, and use the slider to drain and refill it. Click anywhere on the basin for the modelled depth there.
How this is built. The shoreline is the National Hydrography
Dataset polygon for this water body (“Washington Lake”),
matched to the dam by proximity and confirmed by comparing its area with the
National Inventory of Dams surface area.
Depth is modelled, not surveyed: the basin is shaped by distance from
shore — deep in open water, shallow in the bays — and scaled so its
volume equals the recorded storage. No national bathymetric survey exists for
US reservoirs. Treat the shoreline, area and volume as measured, and the depth
distribution as an informed approximation.
Above normal pool, water is shown rising within the normal-pool
shoreline. Where it would actually spread depends on the surrounding
terrain, which is not modelled here — a reservoir in a steep canyon barely
widens, one on flat ground can spread a long way. This is a depth and volume
figure, not an inundation map. Official inundation mapping for a dam
comes from its Emergency Action Plan.
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 Washington Lake -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Provo River Near Woodland | 37 cfs | → |
| Weber River Near Oakley | 67 cfs | → |
| Provo River Near Hailstone | 29 cfs | → |
| Bear River Near Utah-Wyoming State Line | 65 cfs | → |
| Weber River Near Peoa | 78 cfs | → |
| Lake Fork River Ab Moon Lake | 47 cfs | → |
About Washington Lake
What is the water level at Washington Lake right now?
As of September 16, 2026, Washington Lake is holding 1,772 acre-ft, about 94% of normal for this date. Pool elevation and the year-over-year trend are shown above.
Is Washington Lake high or low right now?
Compare the percent-of-normal figure on this page: above 100% means storage is higher than the historical average for the date (a wet year), below 100% means lower (a dry year or drought). The daily-levels chart shows the current trend.
Where does the data for Washington Lake 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.
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