McPhee Reservoir Inflow Daily Average Forecast Flow (ending 12z on given date) Units: CFSD Created: May 24 2018 DAILY TOTAL: deterministic forecast flow (official forecast on CBRFC website) ESP TOTAL: 50% exceedance forecast flow based on climatology DATE,TOTAL, 2018-05-25,215,Daily Model Output (20180524) 2018-05-26,216 2018-05-27,216 2018-05-28,207 2018-05-29,191 2018-05-30,183 2018-05-31,177 2018-06-01,169 2018-06-02,161 2018-06-03,153 2018-06-04,146 2018-06-05,140 2018-06-06,134 2018-06-07,128 2018-06-08,123 2018-06-09,118,ESP Model Output (20180523) 2018-06-10,113 2018-06-11,109 2018-06-12,105 2018-06-13,101 2018-06-14,97 2018-06-15,93 2018-06-16,90 2018-06-17,87 2018-06-18,84 2018-06-19,81 2018-06-20,78 2018-06-21,75 2018-06-22,73 2018-06-23,70 2018-06-24,68 2018-06-25,66 2018-06-26,64 2018-06-27,62 2018-06-28,60 2018-06-29,58 2018-06-30,57 2018-07-01,55 2018-07-02,54 2018-07-03,52 2018-07-04,51 2018-07-05,49 2018-07-06,48 2018-07-07,47 2018-07-08,46 2018-07-09,45 2018-07-10,44 2018-07-11,43 2018-07-12,42 2018-07-13,42 2018-07-14,43 2018-07-15,45 2018-07-16,41 2018-07-17,48 2018-07-18,49 2018-07-19,45 2018-07-20,45 2018-07-21,45 2018-07-22,46 2018-07-23,45 2018-07-24,52 2018-07-25,53 2018-07-26,56 2018-07-27,54 2018-07-28,59 2018-07-29,60 2018-07-30,72 2018-07-31,64 SPECIFIC SITE NOTES: GENERAL NOTES: - Days 1-15 are from the CBRFC deterministic model. This uses 5 days of precipitation forecasts and 15 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 16 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.