The Water Supply Outlook from Alberta Environment (updated: September 9, 2009) indicates that volumes for the year are low, ranking 15 to 20th lowest in 91 years of record in most areas, with North Saskatchewan River basins ranking among the 3 lowest on record and the Bow River at Banff ranking second lowest. Fortunately, volumes in all areas have increased since August 1, due to improved precipitation, except for the Milk River at Eastern Crossing where volume decreased slightly. A year in review report will be published in mid November. Click here... for additional water supply details throughout the province (by basin).
Also click here... to view Agriculture and Agri-Food Canada compelling map showing the "Departure from Average Precipitation (Prairie Region)" from April 1 to September 16, 2009.