Water Supply Outlook for Alberta
March 2011
Water Supply Forecast as of March 1, 2011 - Oldman River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2011 | ||||||
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 2010 Volume as a % of Average |
St. Mary River | 721,000* | 97 | 82-106 | 78 | 43/91 | 124 |
Belly River | 234,000 | 95 | 83-109 | 75 | 38/91 | 109 |
Waterton River | 599,000 | 99 | 78-110 | 70 | 46/91 | 85 |
Oldman River near Brocket | 1,149,000 | 105 | 77-127 | 69 | 55/91 | 94 |
Oldman River at Lethbridge | 2,930,000 | 98 | 71-114 | 65 | 48/91 | 114 |
* - This value is the natural volume and includes the U.S. share Average is calculated for the March 1 to September 30 period from 1912 to 2001
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