Flashcard 27: Science: Earth and Space (Sections 9.1–9.2)

Front

What direction do tropical cyclones in the Northern Hemisphere generally move?

Back

northwest

Front

How does the visible funnel of a waterspout form?

Back

Cloud droplets condense inside the waterspout.

Front

When does a tropical disturbance become a tropical cyclone?

Back

When winds begin rotating.

Front

What two ingredients do hurricanes require for formation?

Back

warm ocean and Coriolis effect

Front

When is a tornado considered to have formed?

Back

when a rotating air column reaches the ground