Water Supply Outlook for Alberta
February 2002
| Table 4 Water Supply Forecast as of February 1, 2002 - Bow River Basin (Natural Flows) |
| Volume Forecast for March 1 to September 30 | ||||||
| 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 2001 Volume as a % of Average |
| Bow River at Banff | 981,000 | 91 | 79-107 | 69 | 34/84 | 72 |
| Lake Minnewanka Inflow | 169,000 | 90 | 68-119 | 61 | 32/84 | 67 |
| Spray River near Banff | 329,000 | 90 | 70-118 | 65 | 30/84 | 55 |
| Kananaskis River | 348,000 | 84 | 70-107 | 62 | 21/84 | 66 |
| Bow River at Calgary | 2,182,000 | 89 | 71-110 | 63 | 26/84 | 66 |
| Elbow River | 166,000 | 75 | 56-103 | 39 | 26/84 | 64 |
| Highwood River | 411,000 | 65 | 40-98 | 28 | 20/84 | 49 |
|
Average is calculated for the March 1 to September 30 period from 1912 to 1995 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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