Water Supply Outlook for Alberta
February 2007
Table 6 - Water Supply Forecast as of February 1, 2007 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2007 | ||||||
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) | Actual March-September 2006 Volume as a % of Average |
Lake Abraham Inflow | 2,207,000 | 103 | 94-111 | 90 | 18/30* | 101 |
Brazeau Reservoir Inflow | 1,510,000 | 105 | 82-127 | 70 | 23/41** | 63 |
North Saskatchewan River at Edmonton | 5,958,000 | 102 | 86-118 | 74 | 52/91 | 76 |
Note: Click on the site Location to see the Water Supply Forecast graphically
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* Lake Abraham is compared to 30 years of data Average is calculated for the March 1 to September 30 period from 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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