Several inputs to the Forecast model are hand-entered based on the forecast and user preferences for generating forecast hydrographs. The following steps should be followed to set up the Forecast Model.

Open the StartDay table slot in the green InputForecastData data object. Set the input to match the Forecast date as a Julian day (i.e. a value of 91 if the forecast date is April 1st and it is not a leap year).
Adjust the Run Control to have an Initial Timestep of December 31 of the previous year (Start Timestep of January 1) and a Finish Timestep as the day prior to the forecast date.
Select all objects – except for the red historical data objects – and synchronize the objects with the run control by selecting Workspace – Objects – Synchronize Object and then selecting Synchronize Selected Objects with Run Period and then clicking on the Sync button.
Invoke the UpdatePointInflow and UpdateRGStorage DMIs to bring in needed information exported from the Accounting Model.

-Check the imported values in the reach and reservoir objects.

Input forecasts to the Forecasts table slot based on the forecast information available at http://www.wcc.nrcs.usda.gov/cgibin/bor.pl for a selected exceedence level (i.e. 10%, 50%, 90%, etc.) for each forecast location.

-Input NaNs for the forecast for later months if needed.

1 Res

2 Reach