Water Supply Outlook for Alberta
May 2007
Table 6b - Water Supply Forecast as of May 1, 2007 - Red Deer River Basin
(Natural Flows) |
Volume Forecast for May 1 to September 30, 2007 | Year to date | |||||||
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-April 2007 Volume as a % of Average | Ranking (lowest to highest) | |
Red Deer River at Dickson Dam |
876,000* | 105 | 82-135 | 75 | 61/91 | 216** | 90/91 | |
Red Deer River at Red Deer |
1,150,000* | 105 | 78-136 | 70 | 60/91 | 184** | 84/91 |
*NOTE: The forecast shown is the March to September 2007 forecast minus the recorded volume to date
|
** Recorded 2007 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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