Water Supply Outlook for Alberta

June 2017

Water Supply Forecast as of June 1, 2017 - North Saskatchewan River Basin (Natural Flows)

Volume Forecast for June 1 to September 30, 2017 Year to date
Locations Volume in dam3 Volume as a % of Average Probable Range as a % of Average Potential Minimum
as % of
Forecast Ranking (lowest to highest) Recorded March-May 2017 Volume as a % of Average Ranking (lowest to highest)
Lake Abraham Inflow 2,317,000* 125 120-129 117 90/100 142** 84/100
Brazeau Reservoir Inflow 1,138,000* 94 83-105 73 47/100 120** 64/100
North Saskatchewan River at Edmonton 4,720,000* 110 107-119 93 63/100 205** 99/100

*NOTE: The forecast shown is the March to September 2017 forecast minus the recorded volume to date

** Recorded 2017 natural flows are preliminary and subject to change

Average is calculated for the March 1 to September 30 period 1981 to 2010

NOTE: There is: a 50% chance that the actual natural flow will fall within the probable range given; a 25% chance that the actual flow will be less than the lower bound of the probable range given; and a 10% chance that the actual natural flow will be less than the reasonable minimum. Actual day to day streamflow conditions may vary throughout the season as a result of the effects of streamflow diversion and reservoir storage.

For technical enquires about this web page please contact Alberta Environment - Environmental Management Water Management Operations Branch at AENV-WebWS@gov.ab.ca