Water Supply Outlook for Alberta

July 2015

Water Supply Forecast as of July 1, 2015 - North Saskatchewan River Basin (Natural Flows)

Volume Forecast for July 1 to September 30, 2015 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-June 2015 Volume as a % of Average Ranking (lowest to highest)
Lake Abraham Inflow 1,203,000* 89 83-96 77 24/100 118** 75/100
Brazeau Reservoir Inflow 669,000* 82 55-110 31 32/100 72** 15/100
North Saskatchewan River at Edmonton 2,583,000* 86 76-96 67 28/100 87** 27/100

*NOTE: The forecast shown is the March to September 2015 forecast minus the recorded volume to date

** Recorded 2015 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