In 1865 a broken Admiral Robert Fitz Roy locked himself in his dressing room & cut his throat. His grand meteorological project had failed. Yet only a decade later, Fitz Roy`s storm-warning system & `forecasts` would return, the model for what we use today. In an age when a storm at sea was evidence of God`s great wrath, nineteenth-century meteorologists had to fight against convention & religious dogma. But buoyed by the achievements of the Enlightenment a generation of mavericks set out to explain the secrets of the atmosphere & learned to predict the future. Among them were Luke Howard, the first to classify the clouds, Francis Beaufort who quantified the winds, James Glaisher, who explored the upper atmosphere in a hot-air balloon, Samuel Morse whose electric telegraph gave scientists the means by which to transmit weather warnings, & Fitz Roy himself, master sailor, scientific pioneer & founder of the Met Office. Reputations were built & shattered. Fractious debates raged over decades between scientists from London to Galway, Paris to New York. Explaining the atmosphere was one thing, but predicting what it was going to do seemed a step too far. In 1854, when a politician suggested to the Commons that Londoners might soon know the weather twenty-four hours in advance, the House roared with laughter. Peter Moore`s exhilarating account navigates treacherous seas, rough winds & uncovers the obsession that drove these men to great invention & greater understanding.