Water Supply Outlook for Alberta

March 2007

Table 5 - Water Supply Forecast as of March 1, 2007 - Bow River Basin (Natural Flows)

Volume Forecast for March 1 to September 30, 2007
Locations Volume in dam3 Volume as a % of Average Probable Range as a % of Average Reasonable Minimum
as % of Average 		Forecast Ranking (lowest to highest) Recorded March-September 2006 Volume as a % of Average
Bow River at Banff 1,081,000 101 93-118 84 47/91 84
Lake Minnewanka Inflow 201,000 108 89-131 76 58/91 77
Spray River near Banff 379,000 103 93-120 81 51/91 98
Kananaskis River 421,000 103 88-122 77 52/91 88
Bow River at Calgary 2,485,000 102 87-120 78 52/91 83
Elbow River 204,000 93 75-127 59 49/91 80
Highwood River 581,000 93 73-126 55 46/91 71

Note: Click on the site Location to see the Water Supply Forecast graphically

 

Average is calculated for the March 1 to September 30 period from 1912 to 2001

 
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.

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