Catalog Item

Franklin D. Roosevelt Lake, Grand Coulee Dam, and Powerplant (GCL) Daily Instant Lake/Reservoir Storage Time Series Data

Franklin D. Roosevelt Lake, Grand Coulee Dam, and Powerplant (GCL) instant daily lake/reservoir storage volume in acre-feet (af). Daily refers to one measurement per day.
Query Data
Generation Effort Columbia-Pacific Northwest Water Operations Monitoring
Type Time series
Modeled/Observed Observed
Start Date Fri Oct 01 1982 01:00:00 GMT-0600 (Mountain Daylight Time)
End Date Sun Nov 08 2026 01:00:00 GMT-0700 (Mountain Standard Time)
Parameter Name Lake/Reservoir Storage
Parameter Group Lake/Reservoir Storage
Parameter Transformation instant
Time Step daily
Parameter Unit af
Item Vertical Datum
Update Frequency daily
Last Update Monday, November 9th, 2026

Disclaimer

Data are provisional and subject to revision unless otherwise noted. Data users are cautioned to consider carefully the provisional nature of the information before using it.