Hells Canyon River Flows

Provisional and subject to revision
Snake River below Hells Canyon Dam, Or
Hells Canyon Outflow for Past Four Days Move Mouse Over Graph To See Data Values Actual operations may differ from the estimates given below.

Provisional and subject to revision

Snake River below Hells Canyon Dam, Or

Hells Canyon Outflow for Past Four Days

Move Mouse Over Graph To See Data Values
Actual operations may differ from the estimates given below.

Hells Canyon 24 Hours Outflow Forecast

Updated Hourly
Move Mouse Over Graph To See Data Values
Actual operations may differ from the estimates given below.

Hells Canyon Extended Forecast

Updated Daily Monday-Friday
(Last Updated: 11/17)

	Fri 11/20	Sat 11/21	Sun 11/22	Mon 11/23
Minimum:	8500	8500	8500	8500
Average:	8500	8500	8500	8500
Maximum:	8500	8500	8500	8500

Brownlee Reservoir Three-Day Average Inflow:

11/19/2009 11675 cfs

Idaho Power will begin its 2009 fall Chinook Program spawning flow for the Snake River below Hells Canyon Dam at midnight on Wednesday October 14. The spawning flow will be a flat release of approximately 9, 000 cfs that will be maintained through the first or second week of December 2009, at which time normal operations will resume. As a result of the 2009 Fall Chinook program, Brownlee reservoir will be at elevation 2,033 feet above mean sea level, on October 14. The draft of Brownlee is necessary to capture inflow to the reservoir that will be in excess of the flat spawning flow release. The Brownlee reservoir boat ramps that will be usable in October will be limited to Woodhead Park. More ramps will become available as Brownlee fills during the Fall Chinook spawning period.

This data collection for the current water year is considered provisional , meaning it is subject to change until reviewed and finalized. The data collection for the previous water year is typically finalized during the first half of the current water year. Although Idaho Power Company makes every effort to maintain complete and accurate data, users of provisional data are urged to use caution in that errors are likely. You should independently verify data before using it to conduct business having substantial monetary or operational consequences. Inappropriate use of provisional data could cause personal injury or property damage. If you have questions or comments, please contact us.

Username or E-mail
Password
Forgot Password? Forgot Username?

Account Manager Login