The jet stream is a complex phenomenon involving the interplay between many variables. This resource provides a variety of materials, including Giving Rise to the Jet Stream, which is a simplified introduction that shows what generates the jet stream and why it flows from west to east. The site also contains a five-day view of the jet stream, which is a realistic depiction of how the jet stream flows; a page that provides some answers to frequently asked questions about the jet stream; and a glossary of terms used in the Giving Rise to the Jet Stream feature.