Water Supply Outlook for Alberta

April 2015

Water Supply Forecast as of April 1, 2015 - Milk River Basin (Natural Flows)

Volume Forecast for April 1 to September 30, 2015 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 2015 Volume as a % of Median Ranking (lowest to highest)
Milk River at
Western Crossing
31,700* 97 73-122 50 30/98 264** 80/98
Milk River
at Milk River
55,400* 104 80-128 59 35/98 206** 67/98
Milk River at
Eastern Crossing
63,000* 93 64-122 38 27/98 184** 67/98

* NOTE: The forecast shown is the March to September 2015 forecast minus the recorded volume to date

** Recorded 2015 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