Water Supply Outlook for Alberta
May 2005
| Table 4 - Water Supply Forecast as of May 1, 2005 - Bow 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) | Recorded March-September 2004 Volume as a % of Average |
| Bow River at Banff | 1,028,000 | 96 | 84-109 | 80 | 38/91 | 88 |
| Lake Minnewanka Inflow | 170,000 | 91 | 80-121 | 72 | 35/91 | 108 |
| Spray River near Banff | 338,000 | 92 | 82-112 | 80 | 32/91 | 104 |
| Kananaskis River | 371,000 | 91 | 83-111 | 78 | 33/91 | 95 |
| Bow River at Calgary | 2,277,000 | 94 | 79-111 | 73 | 37/91 | 92 |
| Elbow River | 177,000 | 81 | 69-106 | 63 | 33/91 | 96 |
| Highwood River | 477,000 | 76 | 64-104 | 57 | 33/91 | 77 |
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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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