Mesoscale convective complexes
A) can last for a week.
B) often form under a ridge of high pressure.
C) are most common in the Southeast.
D) reach peak activity in late afternoon or early evening.
E) none of the above
Question 2
Squall lines need this in order to form
A) a boundary of unstable air.
B) convergence aloft.
C) weak updrafts.
D) an abrupt change of elevation, such as the eastern edge of the Rocky Mountains.
E) a stable cP air mass.
