From 1899–1912, he was an assistant master at Merchant Taylors' School, and then worked at the Meteorological Office from 1912.[7] From 1925, he was Assistant-Director of the Meteorological Office and Superintendent of Kew Observatory, where he succeeded Charles Chree. Whipple remained in this post until he retired in 1939.[3] He also served as president of the Royal Meteorological Society from 1936 to 1937.[8]
In his role as Superintendent of Kew Observatory, Whipple played an important part in the recording of earthquakes, since Kew had been the site of a seismological observatory since 1898.[9] During his time as superintendent, Whipple devoted considerable time and energy to improve the quality of the seismological observations. He realised that the sensitivity of the seismometers was badly affected by wind, since wind would cause the whole observatory building to move. So he designed and commissioned a new, underground bunker to hold the Kew seismometers.[10] Whipple was Chair of the Seismological Investigations Committee of the British Association for the Advancement of Science from 1931-1939,[11] and also served on the National Committee for Geodesy and Geophysics.[12] These roles brought him into contact with prominent seismologists around the world. Whipple was a Fellow of the Institute of Physics, and was awarded the ScD degree from Cambridge in 1929.
W. N., Bailey (1943). "Francis John Welsh Whipple". Journal of the London Mathematical Society. s1-18 (4): 249–256. doi:10.1112/jlms/s1-18.4.249. Obituary of Francis John Welsh Whipple by W. N. Bailey: J. London Math. Soc., October 1943; s1-18: 249 - 256