Water Supply Outlook for Alberta
July 2002
Table 6b - Water Supply Forecast as of July 1, 2002 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for July 1 to September 30 | 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 2002 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 1,270,000* | 90 | 82-94 | 75 | 10/31** | 109**** | 14/18 | |
Brazeau Reservoir Inflow | 590,000* | 70 | 54-92 | 49 | 12/29*** | 81**** | 12/29 | |
North Saskatchewan River at Edmonton | 2,526,000* | 78 | 69-98 | 57 | 19/84 | 85**** | 27/84 |
*NOTE: The forecast shown is the March to September 2002 forecast minus the recorded volume to date Click on the site Location to see the Water Supply Forecast graphically ** Lake Abraham is compared to 31 years of data 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