El Nino: Making Sense of the Weather

This El Nino site explains the abnormal warming of surface ocean waters in the eastern tropical Pacific and how it affects global weather, ocean circulation, and coral reef ecosystems. The activities involve wind direction and the Coriolis effect, global wind patterns, and cloud formation. There are sections comparing normal conditions to El Nino conditions and a video clip of the 1982-1983 El Nino event showing the movement of warm water across the Pacific region. Educational levels: High school, Middle school