Water Supply Outlook for Alberta
July 2017
Water Supply Forecast as of July 1, 2017 - Bow River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2017 | ||||||
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 2016 Volume as a % of Average |
Bow River at Banff | 1,338,000 | 133 | 129-136 | 126 | 95/99 | 88 |
Lake Minnewanka Inflow | 203,000 | 115 | 109-123 | 104 | 64/99 | 74 |
Spray River near Banff | 379,000 | 105 | 102-109 | 99 | 54/99 | 78 |
Kananaskis River | 397,000 | 104 | 100-109 | 97 | 44/99 | 81 |
Bow River at Calgary | 2,669,000 | 116 | 113-118 | 111 | 73/99 | 80 |
Elbow River | 184,000 | 91 | 86-101 | 82 | 39/99 | 72 |
Highwood River | 530,000 | 95 | 87-107 | 80 | 43/99 | 55 |
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