Water Supply Outlook for Alberta

April 2006

Table 3b - Water Supply Forecast as of April 1, 2006 - Milk River Basin (Natural Flows)

Volume Forecast for April 1 to September 30, 2006 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 2006 Volume as a % of Median Ranking (lowest to highest)
Milk River at
Western Crossing
36,000* 73 37-96 22 27/72** 192*** 54/70*
Milk River
at Milk River
57,700* 73 37-95 23 31/91 167*** 62/91
Milk River at
Eastern Crossing
67,300* 72 34-96 21 32/91 165*** 63/91

* NOTE: The forecast shown is the March to September 2006 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 2006 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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