With his usual dedication and purpose, Norman Warren applied himself to the tasks and problems of readjustment post-war. Although he suffered a setback in health in the late 1940s, he placed duty before personal considerations. In 1950, he attended an international meteorological conference in Geneva, during which he suffered a heart attack. On his return voyage to Australia in August, he passed away at Adelaide at the untimely age of 61 years. Five days before he died, Warren contacted his headquarters in Melbourne. He mentioned that he was tired of travelling, and was anxious to get back, 'as his whole hobby was work'. Norman Warren was succeeded as Commonwealth Director of Meteorology by former Wing-Commander E. W. Timcke.

One of the major post-war problems was the replacement of personnel who left the service after the war. These replacements were needed to man a greatly expanded civilian organisation. RAAF personnel were invited to remain in the Met. Service—and, in fact, many did.

The ranks of the RAAF Met. Service are still reasonably strong but are thinning rapidly. Many former members belong to the Frosterley Club, which meets monthly in Melbourne in Victoria and in other States. There are provisions in the Club rules to admit post-war members of the profession. We, of the former RAAF Met. Service who are left, might join with Bill Gibbs in the spirit of a letter in which he wrote: 'Those of us who have participated in the development of meteorology both nationally in Australia and internationally have indeed been fortunate'.[102]

After the war, many letters of commendation were received. Perhaps one of the most interesting of these came from the wartime Chief of the Air Staff RAAF, Air Marshall Sir George Jones, stating: 'In the performance of its war tasks, the service (Met.) contributed materially to the success of Operations in which climatic and meteorological conditions can forma dominant factor. It earned and retained the confidence of Allied operational commanders and associated Allied weather organisations'.[103]

Bureau of Meteorology