McPhee Reservoir Inflow Daily Average Forecast Flow (ending 12z on given date) Units: CFSD Created: May 18 2018 DAILY TOTAL: deterministic forecast flow (official forecast on CBRFC website) ESP TOTAL: 50% exceedance forecast flow based on climatology DATE,TOTAL, 2018-05-19,398,Daily Model Output (20180518) 2018-05-20,378 2018-05-21,356 2018-05-22,355 2018-05-23,385 2018-05-24,361 2018-05-25,312 2018-05-26,261 2018-05-27,236 2018-05-28,219 2018-05-29,206 2018-05-30,194 2018-05-31,184 2018-06-01,175 2018-06-02,166 2018-06-03,164,ESP Model Output (20180517) 2018-06-04,156 2018-06-05,152 2018-06-06,145 2018-06-07,138 2018-06-08,132 2018-06-09,126 2018-06-10,119 2018-06-11,116 2018-06-12,111 2018-06-13,107 2018-06-14,103 2018-06-15,99 2018-06-16,96 2018-06-17,93 2018-06-18,89 2018-06-19,86 2018-06-20,83 2018-06-21,79 2018-06-22,76 2018-06-23,74 2018-06-24,71 2018-06-25,69 2018-06-26,67 2018-06-27,67 2018-06-28,65 2018-06-29,63 2018-06-30,61 2018-07-01,60 2018-07-02,58 2018-07-03,56 2018-07-04,54 2018-07-05,54 2018-07-06,51 2018-07-07,55 2018-07-08,53 2018-07-09,51 2018-07-10,50 2018-07-11,49 2018-07-12,47 2018-07-13,48 2018-07-14,48 2018-07-15,50 2018-07-16,49 2018-07-17,48 2018-07-18,49 2018-07-19,47 2018-07-20,46 2018-07-21,45 2018-07-22,46 2018-07-23,48 2018-07-24,53 2018-07-25,57 2018-07-26,57 2018-07-27,54 2018-07-28,59 2018-07-29,67 2018-07-30,75 2018-07-31,66 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.