Water Supply Outlook for Alberta
May 2009
Water Supply Forecast as of May 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 | 644,000* | 86 | 71-103 | 59 | 25/91 | 111 |
Belly River | 222,000 | 91 | 77-103 | 72 | 29/91 | 96 |
Waterton River | 553,000 | 91 | 72-104 | 63 | 33/91 | 108 |
Oldman River near Brocket | 954,000 | 87 | 72-108 | 59 | 37/91 | 97 |
Oldman River at Lethbridge | 2,499,000 | 84 | 65-103 | 55 | 29/91 | 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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