Water Supply Outlook for Alberta
August 2009
Water Supply Forecast as of August 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 | 526,000* | 71 | 69-73 | 68 | 16/91 | 111 |
Belly River | 193,000 | 79 | 77-82 | 76 | 19/91 | 96 |
Waterton River | 454,000 | 75 | 73-78 | 72 | 19/91 | 108 |
Oldman River near Brocket | 641,000 | 59 | 58-61 | 57 | 12/91 | 97 |
Oldman River at Lethbridge | 1,892,000 | 63 | 61-68 | 59 | 15/91 | 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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