Water Supply Outlook for Alberta

May 2017

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

Volume Forecast for March 1 to September 30, 2017
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-September 2016 Volume as a % of Average
Lake Abraham Inflow 2,533,000 117 113-121 109 81/100 97
Brazeau Reservoir Inflow 1,428,000 92 81-104 70 38/100 69
North Saskatchewan River at Edmonton 6,378,000 116 109-123 103 68/100 101


Average is calculated for the March 1 to September 30 period from 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 potential 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