Water Supply Outlook for Alberta
April 2002
Table 6b - Water Supply Forecast as of April 1, 2002 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for April 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 2002 Volume as a % of Average | Ranking (lowest to highest) | |
Lake Abraham Inflow | 1,940,000* | 92 | 84-102 | 79 | 7/20** | 117 | 17/18 | |
Brazeau Reservoir Inflow | 1,182,000* | 84 | 68-111 | 62 | 11/29*** | 28 | 1/29 | |
North Saskatchewan River at Edmonton | 4,574,000* | 79 | 67-100 | 63 | 17/84 | 43 | 1/84 |
*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 20 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. |
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