The weather was crucial to the success of D-Day. Actor David Haig has written a play called 'Pressure'.
The play, at the Minerva Theatre in Chichester, tells the true story of the tensions between General Eisenhower, the Allied Supreme Commander, and Dr James Stagg, the Chief Meteorological Officer for the Met Office.
When should the attack be launched? Simon has been to find out more.
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Thursday morning's weather for the west of the region
Thursday morning's weather for the east of the region
Wednesday night's weather for the east of the region