Water Supply Outlook for Alberta
April 2005
| Table 4 - Water Supply Forecast as of April 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 | 1,043,000 | 97 | 84-113 | 78 | 40/91 | 88 |
| Lake Minnewanka Inflow | 174,000 | 93 | 81-126 | 72 | 39/91 | 108 |
| Spray River near Banff | 343,000 | 94 | 82-118 | 77 | 34/91 | 104 |
| Kananaskis River | 387,000 | 95 | 85-114 | 76 | 38/91 | 95 |
| Bow River at Calgary | 2,324,000 | 96 | 80-115 | 73 | 41/91 | 92 |
| Elbow River | 186,000 | 85 | 71-115 | 63 | 38/91 | 96 |
| Highwood River | 505,000 | 81 | 66-112 | 56 | 34/91 | 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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