Nechako Reservoir Updates - November 12, 2020

13 Nov 2020

Reporting Period: November 7 to 12, 2020

  • Reservoir level has decreased in the past 7 days from 2798.39 feet to 2798.34 feet.
  • Inflow to the reservoir continues to be much higher than usual due to recent rain and melting snow, and is expected to stay higher than normal for several weeks.
  • Skins Lake Spillway discharge was reduced from 250 m3/s to 60 m3/s on November 10 to allow water level in the Nechako River to decrease before freeze-up in order to reduce the risk of ice jams and flooding.
  • Spillway discharge may be increased or decreased through the winter depending on inflow to the reservoir and snowpack. Discharge from September to April is normally 32 m3/s.
  • Nechako River flow discharge changes in the past 7 days at various locations are as follows:
    • Flow at Nautley increased from 23 m3/s to 28 m3/s.
    • Flow at Vanderhoof increased from 154 m3/s to 222 m3/s.
    • Flow at Cheslatta Falls increased from 120 m3/s to 175 m3/s.
  • Seven (7) mm of precipitation was observed last week and twenty-nine (29) mm of precipitation is expected for next week.
  • You can monitor continuous reservoir elevation by clicking here. Select the Nechako Reservoir at Skins Lake Spillway and station number 08JA023. Reservoir normal maximum level is 12.55m on this gauge, which is equal to 853.44 m or 2800 feet.
  • Please see graphs below for elevation and flow projections. To view real-time and historical information on reservoir activity, click here.

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