Water Supply Outlook for Alberta
June 2004
Table 6b - Water Supply Forecast as of June 1, 2004 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for June 1 to September 30, 2004 | 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-May 2004 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 1,686,000* | 87 | 83-91 | 79 | 10/43** | 96**** | 10/30 | |
Brazeau Reservoir Inflow | 819,000* | 73 | 61-86 | 56 | 10/44*** | 56**** | 1/41 | |
North Saskatchewan River at Edmonton | 3,710,000* | 80 | 72-96 | 67 | 21/91 | 56**** | 2/91 |
*NOTE: The forecast shown is the March to September 2004 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 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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