The Northern Hemisphere typically has three or more upper-level ...

[lak]

The Northern Hemisphere typically has three or more upper-level waves called ___________________ _ ___________________ _ encircling it.
 Fill in the blank(s) with correct word

Question 2

The warmer winds of the ___________________ _ ___________________ _ meets the colder winds of the polar easterlies at the polar front.
 Fill in the blank(s) with correct word

[frankwu0507]

Answer to Question 1

Rossby waves

Answer to Question 2

midlatitude westerlies

[lak]

Thanks for the timely response, appreciate it

[Dominic]

Great answer, keep it coming