Water Supply Outlook for Alberta

August 2013

Water Supply Forecast as of August 1, 2013 - North Saskatchewan River Basin (Natural Flows)

Volume Forecast for August 1 to September 30, 2013 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-July 2013 Volume as a % of Average Ranking (lowest to highest)
Lake Abraham Inflow 706,000* 97 88-105 80 51/100 120** 85/100
Brazeau Reservoir Inflow 465,000* 112 93-137 75 63/100 122** 70/100
North Saskatchewan River at Edmonton 1,654,000* 105 96-115 88 56/100 144** 100/100

*NOTE: The forecast shown is the March to September 2013 forecast minus the recorded volume to date

** Recorded 2013 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