In the Northern Hemisphere, the polar jet stream is strongest when:
Answer: air north of the polar front is much colder than air south of the polar front.
In the Northern Hemisphere, the polar jet stream is strongest when:
Answer: air north of the polar front is much colder than air south of the polar front.
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.