Water Supply Outlook for Alberta
April 2009
Water Supply Forecast as of April 1, 2009 - Milk River Basin
(Natural Flows) |
Volume Forecast for April 1 to September 30, 2009 | Year to date | |||||||
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 2009 Volume as a % of Median | Ranking (lowest to highest) | |
Milk River at Western Crossing |
40,900* | 83 | 53-103 | 24 | 29/72** | 134*** | 46/70* | |
Milk River at Milk River |
65,400* | 83 | 53-102 | 25 | 36/91 | 76*** | 35/91 | |
Milk River at Eastern Crossing |
77,000* | 83 | 51-103 | 21 | 34/91 | 74*** | 33/91 |
* NOTE: The forecast shown is the March to September 2009 forecast minus the recorded volume to date ** Western Crossing data is from 1931-2001 *** Recorded 2009 natural volumes are preliminary and subject to change Median is calculated for period 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 reasonable 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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