Water Supply Outlook for Alberta
May 2009
Water Supply Forecast as of May 1, 2009 - Red Deer River Basin
(Natural Flows) |
Volume Forecast for May 1 to September 30, 2009 | 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 2009 Volume as a % of Average | Ranking (lowest to highest) | |
Red Deer River at Dickson Dam |
678,000* | 81 | 60-100 | 60 | 33/91 | 106** | 61/91 | |
Red Deer River at Red Deer |
853,000* | 78 | 53-102 | 47 | 36/91 | 84** | 41/91 |
*NOTE: The forecast shown is the March to September 2009 forecast minus the recorded volume to date ** Recorded 2009 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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