Water Supply Outlook for Alberta
August 2008
Table 6b - Water Supply Forecast as of August 1, 2008 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for August 1 to September 30, 2008 | 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-July 2008 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 722,000 | 95 | 87-115 | 79 | 21/43 | 105 | 19/30 | |
Brazeau Reservoir Inflow | 407,000* | 105 | 95-123 | 69 | 25/44*** | 124**** | 31/41 | |
North Saskatchewan River at Edmonton | 1,776,000* | 103 | 91-131 | 70 | 60/91 | 112**** | 65/91 |
*NOTE: The forecast shown is the March to September 2008 forecast minus the recorded volume to date  
**** Recorded 2008 natural flows 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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