Wynoochee Lake Near Grisdale reservoir
Wynoochee Lake Near Grisdale
Wynoochee Lake is a reservoir located near Grisdale, Washington. The lake was created in 1961 by the construction of the Wynoochee Dam on the Wynoochee River. The dam was built to provide hydroelectric power, flood control, and irrigation water. The lake has a capacity of 120,000 acre-feet and provides water to the Chehalis River Basin for agriculture and municipal uses. The hydrology of the lake is influenced by both surface flow and snowpack. The lake is surrounded by the Olympic National Forest and is a popular destination for recreational activities such as fishing, boating, hiking, and camping. The lake is also home to several species of fish, including rainbow trout, cutthroat trout, and kokanee salmon.
Daily levels at Wynoochee Lake Near Grisdale
Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.
Reservoir storage, acre-ft
ac-ft · code 00054
Lake or reservoir water surface elevation above NGVD 1929, ft
ft · code 62614
Precipitation, total, in
in · code 00045
Temperature, air, °F
deg F · code 00021
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 Wynoochee Lake Near Grisdale -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wynoochee River Near Grisdale | 214 cfs | → |
| Wynoochee River Above Save Creek Near Aberdeen | 340 cfs | → |
| Quinault River At Quinault Lake | 1,300 cfs | → |
| South Fork Skokomish River Near Union | 200 cfs | → |
| Nf Skokomish R Bl Staircase Rpds Nr Hoodsport | 213 cfs | → |
| North Fork Skokomish River Near Potlatch | 261 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Wynoochee Lake Near Grisdale.
Boat launches
- National Forest Development Road 2294, Montesano
- South Shore Road 419, Quinault
- South Shore Road 345, Quinault
- C D Hanson Road, Humptulips
- Us 101 Mason County
Campgrounds
Paddle runs
- Headwaters And Includes All Tributaries To Confluence With Quinault River
- Headwaters And Includes All Tributaries To Confluence With Graves Creek
- Headwaters And Includes All Tributaries Downstream From The End Of Graves Creek Road And Confluence With Graves Creek To Western Boundary Of Olympic National Park
- Headwaters To Southern Boundary Of Olympic National Park
- Headwaters- Includes All Tributaries To Confluence With North Fork Skokomish River
Track Wynoochee Lake Near Grisdale in the Snoflo app
Save this reservoir as a favorite and set push alerts when storage crosses a threshold (e.g. "alert me at 80% of normal").
About Wynoochee Lake Near Grisdale
Where does the data for Wynoochee Lake Near Grisdale 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 above 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Wynoochee Lake Near Grisdale.