Great Falls

Latest Operating Information
WARNING! Water release schedules can change without notice due to unanticipated weather changes or power system requirements. Large amounts of water could be discharged at any time. Use caution! Obey all posted safety regulations and precautions!  Vital safety information.
Great Falls will be spilling until further notice

Generation Releases

Caption
Day Time Period Generators
11/13/2018 midnight - midnight 1

Observed Data

Caption
Day Time (Central) Reservoir Elevation (behind dam)* Tailwater Elevation (below dam)* Average Hourly Discharge*
11/13/2018 2 AM 794.48 657.03 4,230
11/13/2018 3 AM 794.66 657.19 4,413
11/13/2018 4 AM 794.84 657.35 4,580
11/13/2018 5 AM 795.02 657.50 4,767
11/13/2018 6 AM 795.21 657.65 4,974
11/13/2018 7 AM 795.40 657.82 5,185
11/13/2018 8 AM 795.56 657.99 5,377
11/13/2018 9 AM 795.75 658.12 5,578
11/13/2018 10 AM 795.89 658.25 5,763

Predicted Data

Caption
Day Average Inflow* Midnight Elevation* Average Outflow*
11/13/2018 7,848 796.79 6,075
11/14/2018 6,363 796.35 6,713
11/15/2018 10,265 796.52 10,128

*Elevations are in feet above sea level. Discharges are in cubic feet per second and are reported at the end of the hour.

Notes:

Water release schedules are updated periodically throughout the day. Next-day release schedules are usually available by 6 p.m. of the current day.

Observed water levels also are updated periodically throughout the day. Predicted water levels are updated at least once a day, by 1 p.m. Eastern time, and may be updated more frequently when conditions warrant.

More Information on Great Falls

Operating Guide

General Overview

Sport Fish Survey Results

 

 

 

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