We will gradually be adding a number of pages relating to weather conditions which affected operations and training sessions in Bomber Command.

We will also be giving information on the way in which Bomber Command tried to minimise losses by its use of meteorological experts to forecast what the weather would be. On the Pathfinder Force, 1409 Met Flight was the most invaluable of aids in forecasting weather over the routes to the target.

On Black Thursday, 16/17 December 1943, a huge number of casualties were caused by fog, which produced the worst bad-weather losses in Bomber Command for the entire war.

However, casualties were often caused by other meteorological conditions such as icing, and so seriously was that particular danger taken that Air Ministry orders dictated that any pilot who experienced icing must report it on his return to land.