Water Supply Outlook for Alberta
April 2005
Table 6 - Water Supply Forecast as of April 1, 2005 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2005 | ||||||
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 2004 Volume as a % of Average |
Lake Abraham Inflow | 2,189,000 | 102 | 95-115 | 89 | 16/30* | 103 |
Brazeau Reservoir Inflow | 1,364,000 | 95 | 77-125 | 68 | 20/41** | 88 |
North Saskatchewan River at Edmonton | 5,597,000 | 95 | 78-111 | 72 | 44/91 | 79 |
Note: 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 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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