Water Supply Outlook for Alberta
April 2015
Water Supply Forecast as of April 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 | 916,000 | 91 | 87-96 | 84 | 20/99 | 101 |
Lake Minnewanka Inflow | 152,000 | 85 | 75-100 | 66 | 24/99 | 110 |
Spray River near Banff | 371,000 | 103 | 96-110 | 89 | 50/99 | 88 |
Kananaskis River | 378,000 | 99 | 90-110 | 82 | 38/99 | 116 |
Bow River at Calgary | 2,205,000 | 96 | 91-101 | 86 | 32/99 | 144 |
Elbow River | 199,000 | 98 | 86-121 | 75 | 49/99 | 144 |
Highwood River | 438,000 | 79 | 62-95 | 47 | 30/99 | 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