Water Supply Outlook for Alberta

February 2004

Table 4 - Water Supply Forecast as of February 1, 2004 - Bow River Basin (Natural Flows)

Volume Forecast for March 1 to September 30, 2004
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 2003 Volume as a % of Average
Bow River at Banff 1,011,000 94 82-110 71 36/91 84
Lake Minnewanka Inflow 166,000 89 75-120 68 33/91 93
Spray River near Banff 335,000 91 76-113 68 32/91 84
Kananaskis River 372,000 91 76-118 67 33/91 80
Bow River at Calgary 2,249,000 93 75-113 66 33/91 81
Elbow River 184,000 84 64-120 51 37/91 74
Highwood River 518,000 83 49-133 42 38/91 72

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.

For technical enquires about this web page please contact Alberta Environment - Environmental Management Water Management Operations Branch at AENV-WebWS@gov.ab.ca