This web site allows students to predict future weather events. Use current data to build a predictive model for weather in your location.
http://www.powayschools.com/projects/elnino/
Features: Hands-on Investigation, Lesson Ideas, Online Interactivity, Graphics/Multimedia, Assessment, Data Sources, History, Inquiry Materials
As an introduction to El Niño, consider using this web quest. Students learn about the phenomenon, find and interpret data, and report on El Niño's effects for a given geographic area.
http://projects.edtech.sandi.net/roosevelt/elnino/studentelnino.html
Features: Hands-on Investigation, Lesson Ideas, Graphics/Multimedia, Assessment, Data Sources, Inquiry Materials