Water Supply Outlook for Alberta

Table 3 - Recorded March 1 to September 30, 2002 Natural Runoff Volumes - Oldman River Basin (Natural Flows)

2002 Recorded Volumes
March 1 to September 30
2002 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 1,136,000** 155 83/85 -47.7%
Belly River 367,000* 150 83/85 -45.3%
Waterton River 947,000* 143 80/85 -41.9%
Oldman River near Brocket 1,616,000* 147 75/85 -52.4%
Oldman River at Lethbridge 4,480,000* 151 78/85 -52.8%

Note: Click on the site Location to see the Water Supply Forecast graphically

* - Recorded 2002 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 1995


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