Aperson who is able to motivate others to identify with and commit themselves to the group's mission would be best described as a(n)

Transformational leader.

Explanation:

This leadership style is primarily about inspiring employees through their own example. A transformational leader must act on what he expects from his employees, this form of leadership inspires and motivates employees to develop their own capabilities, build trust and cooperate, and create and enforce organizational standards of effectiveness, ethics and freedom of communication.

they encountered severe weather for which they were poorly prepared.