Water Supply Outlook for Alberta
May 2012
| Water Supply Forecast as of May 1, 2012 - Bow River Basin
(Natural Flows) |
| Volume Forecast for March 1 to September 30, 2012 | ||||||
| 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 2011 Volume as a % of Average |
| Bow River at Banff | 1,149,000 | 107 | 103-109 | 93 | 65/91 | 95 |
| Lake Minnewanka Inflow | 228,000 | 122 | 107-126 | 87 | 76/91 | 133 |
| Spray River near Banff | 388,000 | 106 | 95-115 | 83 | 57/91 | N/A |
| Kananaskis River | 413,000 | 101 | 88-114 | 80 | 49/91 | 97 |
| Bow River at Calgary | 2,498,000 | 103 | 98-108 | 86 | 54/91 | 113 |
| Elbow River | 213,000 | 98 | 81-105 | 68 | 54/91 | 128 |
| Highwood River | 662,000 | 106 | 86-118 | 77 | 56/91 | 146 |
|
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
