12 Bostons bombed a railway viaduct at Morlaix and 2 of 12 Venturas dispatched bombed a steelworks at Ijmuiden. 1 Boston lost.
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LORIENT
75 Wellingtons and 41 Halifaxes of 1, 4 and 6 Groups. 2 Halifaxes and 2 Wellingtons lost.
Crews encountered thick cloud and icing and, with no Pathfinder marking, the bombing was well scattered.
Minor Operations: 17 Wellingtons minelaying off Biscay ports and 5 O.T.U. sorties to France also encountered bad weather. 1 aircraft from each operation was lost.