Request an Outlook Briefing when your proposed departure time
is six hours or more from the time of the briefing.
An outlook briefing is used for a weather outlook usually greater than six hours from proposed departure time
. This helps get an idea of what the actual weather will be and gives you an opportunity to consider the go/no-go decision.
When your proposed departure time
is within two hours, current conditions will be given including a summary of current weather, PIREPs and weather radar information.
Most [ARTCCs] have this parameter set so as to delete these flight plans a minimum of 1 hour after the proposed departure time
. To ensure that a flight plan remains active, pilots whose actual departure time will be delayed 1 hour or more beyond their filed departure time, are requested to notify ATC of their departure time." To ensure your flight plan is waiting when you need it:
In Item 13, put the ICAO designation for your departure airport and proposed departure time