Forecast study for Prairie Provinces Water Board

TitleForecast study for Prairie Provinces Water Board
Publication TypeConference Proceedings
Year of Conference1972
AuthorsNemanishen, W.
Conference Name40th Annual Western Snow Conference
Series TitleProceedings of the 40th Annual Western Snow Conference
Date PublishedApril 1972
PublisherWestern Snow Conference
Conference LocationPhoenix, Arizona
KeywordsForecast accuracy, Precipitation analysis, Water supply forecasting

The Prairie Provinces Water Board has spearheaded a study to improve and coordinate water supply forecasts for Alberta, Saskatchewan and Manitoba. Initial forecasts for the April to October period are based on winter storage precipitation data, summer rainfall and winter base flows. Further the use of percent correction factor, based on data for three integrating loss basins, significantly improved the accuracy of forecasts for the South Saskatchewan River. Extreme residuals were reduced from plus-or-minus 23 percent to plus-or-minus 8 percent.