Water Supply Outlook for Alberta
May 2007
Table 3b - Water Supply Forecast as of May 1, 2007 - Milk River Basin
(Natural Flows) |
Volume Forecast for May 1 to September 30, 2007 | Year to date | |||||||
Locations |
Volume in dam3 |
Volume as a % of Median |
Probable Range as a % of Median |
Reasonable Minimum as % of Median |
Forecast Ranking (lowest to highest) | Recorded March-April 2007 Volume as a % of Median | Ranking (lowest to highest) | |
Milk River at Western Crossing |
23,800* | 75 | 59-89 | 23 | 30/72** | 83*** | 30/72** | |
Milk River at Milk River |
38,900* | 77 | 62-91 | 26 | 34/91 | 68*** | 30/91 | |
Milk River at Eastern Crossing |
43,200* | 76 | 58-91 | 25 | 32/91 | 66*** | 30/91 |
* NOTE: The forecast shown is the March to September 2007 forecast minus the recorded volume to date Click on the site Location to see the Water Supply Forecast graphically |
** Western Crossing data is from 1931-2001 *** Recorded 2007 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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