If ‘According to import date in weather forecast file’ selected, the latest available weather forecast is determined by the import date that is stored along each weather forecast in the fc-file. This can be applied for weather forecast series that has been imported regularly during the period evaluated. However, if the weather forecast data for past periods has been imported once using the ‘Get consecutive forecasts’ option in Weather Client, the time for a virtual import date can be set based on the ‘Forecast start relative import date’ setting.