Water Supply Outlook for Alberta
April 2009
Water Supply Forecast as of April 1, 2009 - Oldman River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2009 | ||||||
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 2008 Volume as a % of Average |
St. Mary River | 608,000* | 82 | 68-102 | 56 | 21/91 | 111 |
Belly River | 208,000 | 85 | 74-104 | 67 | 24/91 | 96 |
Waterton River | 511,000 | 84 | 64-102 | 55 | 24/91 | 108 |
Oldman River near Brocket | 919,000 | 84 | 69-107 | 56 | 31/91 | 97 |
Oldman River at Lethbridge | 2,407,000 | 81 | 61-103 | 51 | 27/91 | 102 |
* - 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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