Franklin Roosevelt Lake At Grand Coulee Dam Reservoir
As of August 8, 2026, Franklin Roosevelt Lake At Grand Coulee Dam is holding 1,284 ft of water — 102% of normal storage for this date. Storage data refreshed throughout the day.
Franklin Roosevelt Lake At Grand Coulee Dam
Franklin D. Roosevelt Lake is a reservoir created by the Grand Coulee Dam in Washington. The lake was named after President Franklin D. Roosevelt, who dedicated the dam in 1941. The dam is the largest hydroelectric facility in the United States and provides power to millions of homes. The lake has a surface area of over 100 square miles and is fed by the Columbia River and nearby snowpacks. It provides irrigation for agricultural land in the region and is a popular destination for recreational activities such as fishing, boating, and camping. The lake is also an important habitat for fish and wildlife, including salmon, trout, and bald eagles.
Daily levels at Franklin Roosevelt Lake At Grand Coulee Dam
Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.
Lake or reservoir water surface elevation above NGVD 1929, ft
ft · code 62614
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 Franklin Roosevelt Lake At Grand Coulee Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wilson Creek Below Corbett Draw Near Almira | 0 cfs | → |
| Omak Creek Near Omak | 0 cfs | → |
| Okanogan River At Malott | 509 cfs | → |
| Crab Creek At Irby | 2 cfs | → |
| Methow River Near Pateros | 359 cfs | → |
| Chelan River At Chelan | 81 cfs | → |
About Franklin Roosevelt Lake At Grand Coulee Dam
What is the water level at Franklin Roosevelt Lake At Grand Coulee Dam Reservoir right now?
As of August 8, 2026, Franklin Roosevelt Lake At Grand Coulee Dam Reservoir is holding 1,284 ft, about 102% of normal for this date. Pool elevation and the year-over-year trend are shown above.
Is Franklin Roosevelt Lake At Grand Coulee Dam Reservoir 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 Franklin Roosevelt Lake At Grand Coulee Dam 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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