When a Pacific coast cyclone crosses the Rocky Mountains
A) it gains strength while over the mountain range.
B) it heads south.
C) its relative vorticity increases on the east side of the mountain range.
D) it spins down on the east side of the mountain range.
E) all of the above
Question 2Potential vorticity
A) does not depend upon planetary vorticity.
B) does not depend upon relative vorticity.
C) need not obey Conservation of Angular Momentum.
D) is unrelated to the Coriolis force.
E) none of the above
Question 3The storm that sank the Edmund Fitzgerald
A) was a classic Alberta Clipper.
B) rode in on the Pineapple Express.
C) began as a nor'easter.
D) was a Panhandle Hook.
E) none of the above
Question 4The Pineapple Express
A) is part of the polar jet stream.
B) is less common in El Nio years.
C) can bring heavy rains to the West Coast.
D) brings nor'easters to the East Coast.
E) all of the above
Question 5In spring, most storms that hit the Great Lakes come from the
A) west.
B) east.
C) north.
D) south.
E) south and east.
Question 6In autumn, the Great Lakes is most likely to get hit by storms that originated in
A) the Great Basin and the Lower Mississippi Valley.
B) Alberta and the Texas Panhandle.
C) British Columbia and eastern California.
D) the Rocky Mountains and the North Atlantic.
E) subtropical Pacific and the Pacific Northwest.
Question 7In which season is the main region of North American cyclogenesis farthest north?
A) spring
B) summer
C) early winter
D) late winter
E) indeterminate