Water Supply Outlook for Alberta
August 2011
| Water Supply Forecast as of August 1, 2011 - Bow River Basin
(Natural Flows) |
| Volume Forecast for March 1 to September 30, 2011 | ||||||
| Locations | Volume in dam3 | Volume as a % of Average | Probable Range as a % of Average |
Potential Minimum as % of Average |
Forecast Ranking (lowest to highest) | Recorded March-September 2010 Volume as a % of Average |
| Bow River at Banff | 1,071,000 | 100 | 98-101 | 97 | 45/91 | 69 |
| Lake Minnewanka Inflow | 260,000 | 139 | 135-146 | 132 | 85/91 | 89 |
| Spray River near Banff | 304,000 | 83 | 82-84 | 79 | 15/91 | 73 |
| Kananaskis River | 428,000 | 105 | 102-107 | 100 | 53/91 | 75 |
| Bow River at Calgary | 2,499,000 | 115 | 112-116 | 110 | 54/91 | 77 |
| Elbow River | 297,000 | 136 | 128-138 | 126 | 79/91 | 88 |
| Highwood River | 1,005,000 | 160 | 149-173 | 146 | 83/91 | 79 |
|
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 potential minimum. Actual day to day streamflow conditions may vary throughout the season as a result of the effects of streamflow diversion and reservoir storage. |
For technical enquires about this web page please contact Alberta Environment - Environmental Management Water Management Operations Branch at AENV-WebWS@gov.ab.ca
