Plain English Meaning
Before flying, the pilot gets a complete weather picture for the trip — what the weather is doing now, what it will do during the flight, and anything unusual to watch out for.
Full Definition
A formal review of current and forecast weather conditions obtained by a pilot before a flight, covering the departure, en route, and destination areas, plus alternates. It typically includes adverse conditions, synopsis, current and forecast weather, winds and temperatures aloft, NOTAMs, and any other information relevant to the planned route and time of flight.
Context Anchor
Used before departure, especially before , when the pilot is checking for such as , , poor , storms, , and along the planned .