<P style="MARGIN: 0in 0in 0pt; mso-list: l0 level1 lfo1" class=MsoNormal>Unknown story of a very well-known war: The story of the Supreme Headquarters for the Allied Expeditionary Force’s (SHAEF’s) chief meteorologist on whom Eisenhower relied, yet who was not a meteorologist at all, but a geophysicist whose specialty was the earth’s magnetic field and whose appointment to the post was roundly criticized by both British and American weathermen. Explains how if Eisenhower had postponed for two weeks until tide and moonlight were right, a completely un-forecast gale would have caused the invasion to fail.