Water Supply Outlook for Alberta
February 2013
Water Supply Forecast as of February 1, 2013 - Bow River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2013 | ||||||
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 2012 Volume as a % of Average |
Bow River at Banff | 986,000 | 98 | 92-104 | 87 | 35/99 | 135 |
Lake Minnewanka Inflow | 162,000 | 91 | 80-106 | 70 | 34/99 | 168 |
Spray River near Banff | 372,000 | 103 | 97-111 | 91 | 50/99 | 114 |
Kananaskis River | 385,000 | 101 | 90-112 | 80 | 42/99 | 125 |
Bow River at Calgary | 2,288,000 | 99 | 95-104 | 90 | 42/99 | 135 |
Elbow River | 176,000 | 87 | 78-109 | 69 | 35/99 | 125 |
Highwood River | 541,000 | 97 | 80-125 | 65 | 44/99 | 130 |
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