Water Supply Outlook for Alberta

February 2008

Table 4 - Water Supply Forecast as of February 1, 2008 - Bow River Basin (Natural Flows)
Volume Forecast for March 1 to September 30, 2008
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 2007 Volume as a % of Average
Bow River at Banff 978,000 91 83-104 75 27/91 n/a**
Lake Minnewanka Inflow 175,000 94 80-124 71 41/91 n/a**
Spray River near Banff 358,000 98 83-118 77 41/91 n/a**
Kananaskis River 402,000 98 88-119 77 42/91 n/a**
Bow River at Calgary 2,242,000 92 81-111 71 31/91 n/a**
Elbow River 206,000 95 75-135 61 51/91 n/a**
Highwood River 553,000 88 65-129 50 41/91 n/a**

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

** The recorded March-September 2007 volumes will be published in the next Water Supply Outlook Report.

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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