1409 (Meteorological) Flight was formed on 1 April 1943 to provide meteorological information for RAF Bomber Command and the USAAF. Equipped with unarmed de Havilland Mosquito aircraft, the crews of the Flight undertook long range meteorological reconnaissance flights until the end of the Second World War in Europe and continued in this role until 1946.Formed at RAF Oakington as part of the disbandment of 521 Squadron, the Flight was part of No. 8 Group RAF, the Pathfinders.