Water Supply Outlook for Alberta
August 2004
| Table 4a - Water Supply Forecast as of August 1, 2004 - Bow 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) | Recorded March-September 2003 Volume as a % of Average |
| Bow River at Banff | 881,000 | 82 | 80-87 | 77 | 11/91 | 84 |
| Lake Minnewanka Inflow | 186,000 | 100 | 95-113 | 91 | 49/91 | 93 |
| Spray River near Banff | 322,000 | 88 | 86-93 | 83 | 29/91 | 84 |
| Kananaskis River | 348,000 | 85 | 80-95 | 78 | 25/91 | 80 |
| Bow River at Calgary | 2,075,000 | 85 | 78-92 | 73 | 22/91 | 81 |
| Elbow River | 169,000 | 78 | 76-84 | 73 | 29/91 | 74 |
| Highwood River | 379,000 | 61 | 58-69 | 56 | 17/91 | 72 |
|
Note: Click on the site Location to see the Water Supply Forecast graphically 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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