Water Supply Outlook for Alberta

July 2002

Table 2b Water Supply Forecast as of July 1, 2002 - Milk River Basin (Natural Flows)


Volume Forecast for July 1 to September 30 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-June 2002 Volume as a % of Median Ranking (lowest to highest)
Milk River at
Western Crossing 		14,100* 269 180-393 152 55/63** 222*** 60/63**
Milk River
at Milk River 		31,100* 274 180-445 118 73/84 201*** 78/84
Milk River at
Eastern Crossing 		33,200* 257 133-441 91 72/84 206*** 75/84

* NOTE: The forecast shown is the March to September 2002 forecast minus the recorded volume to date

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

** Western Crossing data is from 1931-95

*** Recorded 2002 natural volumes are preliminary and subject to change

Median is calculated for period 1912 to 1995

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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