Water Supply Outlook for Alberta

October 2005

Table 2 - Recorded March 1 to September 30, 2005 Natural Runoff Volumes - Oldman River Basin (Natural Flows)

2005 Recorded Volumes
March 1 to September 30 		2005 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 571,000** 77 17/91 4.1%
Belly River 217,000* 89 28/91 11.6%
Waterton River 517,000* 85 25/91 11.8%
Oldman River near Brocket 1,403,000* 129 75/91 55.2%
Oldman River at Lethbridge 3,330,000* 112 62/91 43.0%

 

* - Recorded 2005 natural volumes are preliminary and subject to change
** - This value is the natural volume and includes the U.S. share
Average and rankings are based on the period 1912 to 2001

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