Water Supply Outlook for Alberta
June 2006
Table 5b Water Supply Forecast as of June 1, 2006 - Bow River Basin
(Natural Flows) |
Volume Forecast for June 1 to September 30, 2006 | Year to date | |||||||
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-May 2006 Volume as a % of Average | Ranking (lowest to highest) | |
Bow River at Banff | 777,000* | 88 | 81-100 | 79 | 24/91 | 125** | 71/91 | |
Lake Minnewanka Inflow | 128,000* | 88 | 80-114 | 77 | 33/91 | 108** | 71/91 | |
Spray River near Banff | 261,000* | 90 | 82-108 | 75 | 33/91 | 148** | 84/91 | |
Kananaskis River | 303,000* | 92 | 85-110 | 83 | 31/91 | 109** | 59/91 | |
Bow River at Calgary | 1,765,000* | 91 | 78-106 | 72 | 32/91 | 116** | 32/91 | |
Elbow River | 143,000* | 91 | 77-123 | 67 | 45/91 | 76** | 28/91 | |
Highwood River | 376,000* | 90 | 72-130 | 55 | 46/91 | 57** | 17/91 |
*NOTE: The forecast shown is the March to September 2006 forecast minus the recorded volume to date Note: Click on the site Location to see the Water Supply Forecast graphically ** - Recorded 2004 natural volumes are preliminary and subject to change Average is calculated for the period 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. |
For technical enquires about this web page please contact Alberta Environment - Environmental Management Water Management Operations Branch at AENV-WebWS@gov.ab.ca