World's Biggest Hurricane Simulator Aims To Improve Forecasts

Miami (AFP) - The world's largest hurricane simulator is now complete and experts hope it will improve forecasters' ability to predict how strong a storm will get, which has been a key weak spot for science until now.The $15 million wind and wave machine at the University of Miami Rosenstiel School of Marine and Atmospheric Science resembles a giant aquarium tank, without the fish. When lead scientist Brian Haus switches on the 1,700 horsepower engine, a roaring sound fills the $47 million building that houses the tank, known formally as SUSTAIN (SUrge-STructure-Atmosphere INteraction Facility).Paddles begin to roil the 38,000 gallons (144,000 liters) of fresh water, though salt water can also be used.Aquamarine waves arc gracefully against the acrylic windows, then grow increasingly frenetic as a Category 5 wind blows over the top at a speed of 156 miles per hour (251 kph).Soon, spray droplets scatter across the sides of the steel-framed tank, which measures 75 feet (23 meters) long, 20 feet wide and 6.5 feet deep. A miniature model of a green-and-white house gets drenched by crashing waves that resemble a real-life storm surge assaulting a coastal property.Haus, a self-described "wave-junkie," stares intently at the indoor storm he has helped create.- How strong will it get?