Water Supply Outlook for Alberta
May 2009
Water Supply Forecast as of May 1, 2009 - Milk River Basin
(Natural Flows) |
Volume Forecast for March 1 to September 30, 2009 | ||||||
Locations |
Volume in dam3 |
Volume as a % of Median | Probable Range as a % of Median | Potential Minimum as % of Median | Forecast Ranking (lowest to highest) |
Recorded March-September 2008 Volume as a % of Median |
Milk River at Western Crossing |
42,500 | 78 | 69-87 | 41 | 25/70* | 108 |
Milk River at Milk River |
61,900 | 65 | 57-73 | 33 | 27/91 | 78 |
Milk River at Eastern Crossing |
70,500 | 61 | 53-69 | 27 | 26/91 | 71 |
* Western Crossing data is from 1931-2001 Median is calculated for the March 1 to September 30 period from 1912 to 2001 NOTE: There is: a 50% chance that the actual natural flow will fall within the probable range given; a 25% chance that the actual flow will be less than the lower bound of the probable range given; and a 10% chance that the actual natural flow will be less than the potential minimum. Actual day to day streamflow conditions may vary throughout the season as a result of the effects of streamflow diversion and reservoir storage. |
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