Water Supply Outlook for Alberta
August 2003
Table 6b - Water Supply Forecast as of August 1, 2003 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for August 1 to September 30, 2003 | 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 2003 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 682,000* | 90 | 86-103 | 83 | 10/31** | 102**** | 11/18 | |
Brazeau Reservoir Inflow | 293,000* | 75 | 70-93 | 50 | 9/32*** | 88**** | 12/29 | |
North Saskatchewan River at Edmonton | 1,513,000* | 87 | 77-93 | 65 | 29/85 | 92**** | 37/85 |
*NOTE: The forecast shown is the March to September 2003 forecast minus the recorded volume to date Click on the site Location to see the Water Supply Forecast graphically ** Lake Abraham is compared to 30 years of data Average is calculated for the period 1912 to 1995 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