Water Supply Outlook for Alberta
August 2004
Table 6b - Water Supply Forecast as of August 1, 2004 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for August 1 to September 30, 2004 | 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 2004 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 751,000* | 99 | 94-124 | 83 | 22/43** | 103**** | 16/30 | |
Brazeau Reservoir Inflow | 292,000* | 75 | 60-118 | 51 | 12/44*** | 76**** | 10/41 | |
North Saskatchewan River at Edmonton | 1,448,000* | 84 | 76-112 | 60 | 30/91 | 70**** | 10/91 |
*NOTE: The forecast shown is the March to September 2004 forecast minus the recorded volume to date  
**** Recorded 2004 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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