Water Supply Outlook for Alberta
July 2004
Table 6a - Water Supply Forecast as of July 1, 2004 - North Saskatchewan River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2004 | ||||||
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 2003 Volume as a % of Average |
Lake Abraham Inflow | 1,968,000 | 91 | 89-93 | 86 | 9/30* | 98 |
Brazeau Reservoir Inflow | 1,038,000 | 72 | 65-79 | 61 | 7/41** | 77 |
North Saskatchewan River at Edmonton | 4,459,000 | 76 | 70-87 | 66 | 13/91 | 91 |
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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