Final answer:
In the southern hemisphere, winds in the Pacific Ocean normally come from the east and southeast. During an El Niño event, the wind patterns can change, resulting in weaker trade winds and potentially a reversal of wind direction.
Step-by-step explanation:
In the southern hemisphere, in the Pacific Ocean, the wind normally comes from the east and southeast. The wind direction is influenced by the Coriolis force, which causes winds to rotate clockwise in the southern hemisphere.
During an El Niño event, the wind patterns in the Pacific Ocean can change. The warm ocean current that flows off the west coast of South America during El Niño can disrupt the normal wind patterns. This can result in weaker trade winds and even a reversal of wind direction in some areas.