Water Supply Outlook for Alberta
April 2013
Water Supply Forecast as of April 1, 2013 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for April 1 to September 30, 2013 | 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 2013 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 2,081,000* | 98 | 93-104 | 88 | 41/100 | 117** | 75/100 | |
Brazeau Reservoir Inflow | 1,500,000* | 98 | 82-116 | 69 | 49/100 | 49** | 2/100 | |
North Saskatchewan River at Edmonton | 5,260,000* | 98 | 91-106 | 84 | 45/100 | 86** | 63/100 |
*NOTE: The forecast shown is the March to September 2013 forecast minus the recorded volume to date   Average is calculated for the March 1 to September 30 period 1981 to 2010 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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