Water Supply Outlook for Alberta
May 2015
| Water Supply Forecast as of May 1, 2015 - Bow River Basin
(Natural Flows) |
| Volume Forecast for March 1 to September 30, 2015 | ||||||
| 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 2014 Volume as a % of Average |
| Bow River at Banff | 928,000 | 92 | 88-97 | 85 | 24/99 | 101 |
| Lake Minnewanka Inflow | 147,000 | 83 | 73-98 | 64 | 21/99 | 110 |
| Spray River near Banff | 331,000 | 92 | 84-99 | 78 | 34/99 | 88 |
| Kananaskis River | 352,000 | 86 | 75-99 | 65 | 17/99 | 116 |
| Bow River at Calgary | 2,077,000 | 90 | 85-95 | 81 | 26/99 | 144 |
| Elbow River | 190,000 | 94 | 85-94 | 73 | 42/99 | 144 |
| Highwood River | 520,000 | 94 | 76-111 | 61 | 42/99 | 156 |
|
Average is calculated for the March 1 to September 30 period from 1981 to 2009
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
