Water Supply Outlook for Alberta
April 2010
Water Supply Forecast as of April 1, 2010 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for April 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 2010 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 1,901,000* | 89 | 82-96 | 79 | 8/32** | 111**** | 21/30 | |
Brazeau Reservoir Inflow | 1,191,000* | 85 | 69-99 | 61 | 12/41*** | 67**** | 6/41 | |
North Saskatchewan River at Edmonton | 4,619,000* | 80 | 69-93 | 63 | 18/91 | 80**** | 35/91 |
*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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