The marvellous Tempest Prognosticator, a machine of unsurpassed ingenuity, harnessing the uncanny precognitive abilities inherent in the natural world for the benefit of science and mankind. Dark clouds gather. There’s a storm brewing. Tempest Prognosticator, a luscious robust porter, infused with finest cocoa nibs, cinnamon, vanilla and hand roasted burned mandarin. Prepare yourself, we’re in for wild weather.