McPhee Reservoir Inflow Daily Average Forecast Flow (ending 12z on given date) Units: CFSD Created: May 20 2017 DAILY TOTAL: deterministic forecast flow (official forecast on CBRFC website) ESP TOTAL: 50% exceedance forecast flow based on climatology DATE,TOTAL, 2017-05-21,1456,Daily Model Output (20170520) 2017-05-22,1441 2017-05-23,1589 2017-05-24,1763 2017-05-25,1846 2017-05-26,2002 2017-05-27,2176 2017-05-28,2124 2017-05-29,1987 2017-05-30,1938 2017-05-31,2394,ESP Model Output (20170519) 2017-06-01,2145 2017-06-02,2060 2017-06-03,2096 2017-06-04,1991 2017-06-05,2069 2017-06-06,2042 2017-06-07,1978 2017-06-08,1902 2017-06-09,1896 2017-06-10,1763 2017-06-11,1722 2017-06-12,1682 2017-06-13,1616 2017-06-14,1514 2017-06-15,1512 2017-06-16,1480 2017-06-17,1375 2017-06-18,1257 2017-06-19,1281 2017-06-20,1215 2017-06-21,1108 2017-06-22,1040 2017-06-23,994 2017-06-24,910 2017-06-25,829 2017-06-26,798 2017-06-27,754 2017-06-28,677 2017-06-29,651 2017-06-30,580 2017-07-01,539 2017-07-02,491 2017-07-03,480 2017-07-04,439 2017-07-05,409 2017-07-06,383 2017-07-07,367 2017-07-08,349 2017-07-09,336 2017-07-10,319 2017-07-11,303 2017-07-12,289 2017-07-13,284 2017-07-14,279 2017-07-15,266 2017-07-16,255 2017-07-17,245 2017-07-18,233 2017-07-19,220 2017-07-20,208 2017-07-21,205 2017-07-22,197 2017-07-23,198 2017-07-24,209 2017-07-25,206 2017-07-26,193 2017-07-27,211 2017-07-28,213 2017-07-29,210 2017-07-30,206 2017-07-31,198 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.