Water Supply Outlook for Alberta

February 2005

Bow River Basin - Water Supply Forecasts

As of February 1, 2005, natural runoff volumes for the March to September 2005 period are forecast to be average in the Bow River basin, except below average to average for the Elbow and Highwood Rivers (Table 4). Current natural runoff volume forecasts range from 87 to 101% of average. Current March to September 2005 volume forecasts are 7 to 13% higher than runoff volumes recorded during the same period last year for Banff, Calgary and the Highwood River, but 6 to 10% lower than last year for the Cascade and Spray Reservoirs and the Elbow River. The Kananaskis River is forecast to record similar volume to last year. Current forecasted volumes for the March to September 2005 period for the Bow River at Calgary would rank 47th lowest in 91-years of record (1912-2001).

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