Water Supply Outlook for Alberta

April 2017

Water Supply Forecast as of April 1, 2017 - Milk River Basin (Natural Flows)

Volume Forecast for April 1 to September 30, 2017 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 2017 Volume as a % of Median Ranking (lowest to highest)
Milk River at
Western Crossing
47,200* 145 125-166 106 44/98 858** 96/98
Milk River
at Milk River
72,400* 136 113-184 92 45/98 450** 91/98
Milk River at
Eastern Crossing
84,100* 134 108-159 85 48/98 254** 79/98

* NOTE: The forecast shown is the March to September 2017 forecast minus the recorded volume to date

** Recorded 2017 natural volumes are preliminary and subject to change

Median is calculated for period 1981 to 2008

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.

For technical enquires about this web page please contact Alberta Environment - Environmental Management Water Management Operations Branch at AENV-WebWS@gov.ab.ca