Water Supply Outlook for Alberta
November 2011
Recorded March 1 to September 30, 2011 Natural Runoff Volumes - Oldman River Basin
(Natural Flows) |
2011 Recorded Volumes March 1 to September 30 | 2011 Forecast Volumes | ||||
Locations | Volume in dam3 |
Volume as a % of Average |
Ranking (lowest to highest) | Average difference between Forecast and Recorded natural volumes | |
St. Mary River | 1,065,000** | 143 | 85/91 | 29% | |
Belly River | 354,000* | 146 | 88/91 | 30% | |
Waterton River | 873,000* | 144 | 86/91 | 34% | |
Oldman River near Brocket | 1,620,000* | 148 | 82/91 | 22% | |
Oldman River at Lethbridge | 4,338,000* | 145 | 82/91 | 33% |
* - Recorded 2011 natural volumes are preliminary and subject to change Average and rankings are based on the period 1912 to 2001 |
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