Water Supply Outlook for Alberta

April 2006

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

Volume Forecast for March 1 to September 30, 2006
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-September 2005
Volume as a
% of Median
Milk River at
Western Crossing
45,000 83 50-103 36 27/70* 53
Milk River
at Milk River
74,700 79 49-97 37 33/91 60
Milk River at
Eastern Crossing
93,400 81 50-100 39 33/91 67

Note: Click on the site Location to see the Water Supply Forecast graphically

* 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 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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