What is the jetstream?

February 15, 2008 7:50:07 AM PST
The jet stream describes the fastest moving wind in the upper levels of the atmosphere.

Erica's Answer:

The jet stream moves west-to-east in the Northern Hemisphere, and if you could see it, it would look sort of like a ribbon or a tube. The jet stream is sort of like the conductor in the big orchestra that is our weather. This is because the jet stream determines the movement of most of our storm systems in the United States. The jet also brings us cold air when it dips south, and warmer air when it moves north.

- Erica


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