
In the three days before D-Day, everything was set for the invasion except the weather. Britain’s top weather forecaster, James Stagg, faced immense pressure to deliver an accurate forecast, putting him in a difficult situation with Allied leaders. A bad forecast could doom the massive seaborne invasion, and any hesitation risked alerting German forces. Haunted by a disastrous practice run, Supreme Commander Dwight D. Eisenhower, with only his aide Captain Kay Summersby as a confidante, had to make the final, critical decision. With just hours remaining, the outcome of the war and the lives of millions were at stake.