Water Supply Outlook for Alberta

March 2003

Table 4 - Water Supply Forecast as of March 1, 2003 - Bow River Basin (Natural Flows)

Volume Forecast for March 1 to September 30
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 2002 Volume as a % of Average
Bow River at Banff 841,000 78 65-99 58 6/84 88
Lake Minnewanka Inflow 125,000 66 53-92 46 6/84 101
Spray River near Banff 275,000 75 61-97 55 6/84 92
Kananaskis River 325,000 79 65-103 57 10/84 117
Bow River at Calgary 1,870,000 77 60-99 54 11/84 95
Elbow River 151,000 68 55-112 45 17/84 114
Highwood River 337,000 53 43-105 34 10/84 109
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 1995

 
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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