Water Supply Outlook for Alberta
July 2008
Table 6b - Water Supply Forecast as of July 1, 2008 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for July 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-June 2008 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 1,365,000 | 97 | 91-110 | 83 | 21/43 | 101 | 14/30 | |
Brazeau Reservoir Inflow | 871,000* | 105 | 89-130 | 77 | 28/44*** | 147**** | 37/41 | |
North Saskatchewan River at Edmonton | 3,272,000* | 101 | 90-124 | 78 | 57/91 | 122**** | 72/91 |
*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. |
For technical enquires about this web page please contact Alberta Environment - Environmental Management Water Management Operations Branch at AENV-WebWS@gov.ab.ca