Water Supply Outlook for Alberta

May 2010

Water Supply Forecast as of May 1, 2010 - Red Deer River Basin (Natural Flows)


Volume Forecast for May 1 to September 30, 2010 Year to date
Locations Volume in dam3 Volume as a % of Average Probable Range as a % of Average Potential Minimum as % of Average Forecast Ranking (lowest to highest) Recorded March-April 2010 Volume as a % of Average Ranking (lowest to highest)
Red Deer River
at Dickson Dam 		695,000* 84 67-108 57 37/91 59** 6/91
Red Deer River
at Red Deer 		893,000* 81 60-107 48 39/91 39** 7/91

*NOTE: The forecast shown is the March to September 2010 forecast minus the recorded volume to date

** Recorded 2010 natural volumes are preliminary and subject to change

Average is calculated for the period 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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