Water Supply Outlook for Alberta

April 2007

North Saskatchewan River Basin - Water Supply Forecasts

As of April 1, 2007, natural runoff volumes for the March to September 2007 period are forecast to be average to above average into the Bighorn and Brazeau Reservoirs and at Edmonton, ranging from 101 to 103% of average (Table 7a). This represents a 1% increase since the March 1 forecasts at the two reservoirs, and no change at Edmonton. The March to September 2007 forecast volumes are 25 to 40% higher than those recorded during the same period last year at Edmonton and the Brazeau Reservoir, and 2% higher at the Bighorn Reservoir. Current forecasted values for the March to September period for the North Saskatchewan River at Edmonton would rank 52nd lowest in 91-years of record (1912-2001). March natural runoff volumes are ice affected and not yet available, but comprise a small portion of the March to September total.

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