Water Supply Outlook for Alberta
July 2010
Water Supply Forecast as of July 1, 2010 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for July 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-June 2010 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 1,324,000* | 94 | 90-101 | 87 | 18/43** | 78**** | 4/30 | |
Brazeau Reservoir Inflow | 700,000* | 85 | 67-98 | 54 | 17/44*** | 74**** | 8/41 | |
North Saskatchewan River at Edmonton | 2,988,000* | 93 | 81-104 | 70 | 46/91 | 73**** | 17/91 |
*NOTE: The forecast shown is the March to September 2010 forecast minus the recorded volume to date  
**** Recorded 2010 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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