Water Supply Outlook for Alberta
May 2015
Water Supply Forecast as of May 1, 2015 - Oldman River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2015 | ||||||
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 2014 Volume as a % of Average |
St. Mary River | 643,000* | 96 | 87-104 | 80 | 30/99 | 146 |
Belly River | 212,000 | 91 | 84-115 | 78 | 28/99 | 129 |
Waterton River | 498,000 | 91 | 82-100 | 74 | 27/99 | 137 |
Oldman River near Brocket | 904,000 | 92 | 81-115 | 71 | 35/99 | 155 |
Oldman River at Lethbridge | 2,405,000 | 85 | 74-97 | 63 | 30/99 | 147 |
* - This value is the natural volume and includes the U.S. share Average is calculated for the March 1 to September 30 period from 1981 to 2009
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