Meteorology (Weather)/Jet Streams


How are jet streams formed?
They are said to be wavy latitudinally. Why do they adopt such a wavy pattern?

Hi Bhavnish

Jet streams are formed by temperature contrasts between air masses:

The wavy pattern is also caused by temperature differences from the artic extending down through Canada & Siberia:

Here are a few more links you might find of interest:  

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Donald Rosenfeld


Any questions (except private) answered from the 1st grade level on up pertaining to any aspect of Weather. I am a 20 year member of the American Meteorological society and a long time forecaster of eastern United States snow storms and Hurricanes.

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