GUESTS: DUANE GUBLER Director Division of Vector-Borne Infectious Diseases Centers for Disease Control and Prevention Fort Collins, Colorado ROGER PIELKE Author Hurricanes: Their Nature and Impact on Society (John Wiley and Sons, 1998) Researcher National Center for Atmospheric Research Boulder, Colorado PAUL KNIGHT Meterologist Senior Forecaster, New York Times Pennsylvania State Climatologist Department of Meteorology Pennsylvania State University State College, Pennsylvania Back in April, scientists predicted that this would be a busy hurricane season, thanks in part to La Nina. At least four major hurricanes, with winds over 110 miles per hour, are expected to rise from the Atlantic this season, which runs from June to December. As the focus shifts from Floyd to Gert, we'll take a look at the science of hurricanes. What causes them, how are they predicted, and what can we do to prepare? Plus, a look at the outbreak of Saint Louis encephalitis in New York City.