Water Supply Outlook for Alberta
May 2002
| Table 4a Water Supply Forecast as of May 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) | Recorded March-September 2001 Volume as a % of Average |
| Bow River at Banff | 1,047,000 | 97 | 86-115 | 78 | 38/84 | 72 |
| Lake Minnewanka Inflow | 182,000 | 96 | 72-122 | 64 | 39/84 | 67 |
| Spray River near Banff | 345,000 | 94 | 76-120 | 72 | 33/84 | 55 |
| Kananaskis River | 389,000 | 94 | 79-114 | 74 | 36/84 | 66 |
| Bow River at Calgary | 2,344,000 | 96 | 77-116 | 69 | 38/84 | 66 |
| Elbow River | 189,000 | 86 | 64-115 | 57 | 35/84 | 64 |
| Highwood River | 519,000 | 82 | 55-115 | 44 | 35/84 | 49 |
|
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 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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