Reviewed the performance of the inflow models (developed in 1984) used by the British Columbia River Forecast Centre to predict spring inflow volumes to Kalamalka and Okanagan Lakes. Developed new forecast models using principal component analysis and an extended calibration data set. These new models have reduced the uncertainty of the inflow predictions, especially for early (February & March) forecasts. Developed a user-friendly computer interface to make forecasts and record input variables and inflow forecasts.
