Water Supply Outlook for Alberta

August 2014

Water Supply Forecast as of August 1, 2014 - Bow River Basin (Natural Flows)

Volume Forecast for August 1 to September 30, 2014 Year to date
Locations Volume in dam3 Volume as a
% of Average 		Probable Range as a % of Average Potential Minimum
as % of Average 		Forecast Ranking (lowest to highest) Recorded March-July 2014 Volume as a % of Average Ranking (lowest to highest)
Bow River at Banff 261,000* 102 93-111 84 40/99 101** 47/99
Lake Minnewanka Inflow 39,000* 99 82-117 66 52/99 110** 60/99
Spray River near Banff 84,000* 104 90-118 78 57/99 92** 33/99
Kananaskis River 91,100* 97 87-110 78 27/99 118** 75/99
Bow River at Calgary 597,000* 100 95-106 90 53/99 121** 74/99
Elbow River 45,000* 97 87-121 79 55/99 148** 81/99
Highwood River 82,100* 102 62-144 27 64/99 164** 82/99

*NOTE: The forecast shown is the March to September 2014 forecast minus the recorded volume to date

** - Recorded 2014 natural volumes are preliminary and subject to change

Average is calculated for the March to September 30 period from 1981-2009

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