McPhee Reservoir Inflow Daily Average Forecast Flow (ending 12z on given date) Units: CFSD Created: July 04 2017 DAILY TOTAL: deterministic forecast flow (official forecast on CBRFC website) ESP TOTAL: 50% exceedance forecast flow based on climatology DATE,TOTAL, 2017-07-05,339,Daily Model Output (20170704) 2017-07-06,330 2017-07-07,314 2017-07-08,301 2017-07-09,289 2017-07-10,278 2017-07-11,268 2017-07-12,259 2017-07-13,251 2017-07-14,244 2017-07-15,251,ESP Model Output (20170703) 2017-07-16,241 2017-07-17,232 2017-07-18,224 2017-07-19,215 2017-07-20,206 2017-07-21,198 2017-07-22,192 2017-07-23,188 2017-07-24,184 2017-07-25,197 2017-07-26,184 2017-07-27,188 2017-07-28,178 2017-07-29,172 2017-07-30,190 2017-07-31,182 SPECIFIC SITE NOTES: GENERAL NOTES: - Days 1-10 are from the CBRFC deterministic model. This uses 5 days of precipitation forecasts and 10 days of temperature forecasts. These are updated daily and will change as the weather forecast changes, so there is increasing uncertainty past days 3-5. - Days 11 and beyond are from the Ensemble Prediction Model (ESP). This model is driven primarily by climatology for the 1981-2015 period. This guidance is probabilistic and used the 50% exceedance value. It is best to use this as a possible pattern of flow into the future as opposed to an exact value that will occur. - An abrupt change in guidance may occur at the switch from the daily model to the ESP model, some possible reasons are: - The daily model is using a temperature forecast that is either much above or below normal before reverting to normal temperatures in ESP. - If there is regulation (reservoirs, diversions, etc.) above the forecast point there may be differences between the two runs in how they are being handled. Please check with CBRFC forecasters for details on specific forecast points.