What 2 types of clouds usually produce waterspouts?

• A. Cirrus and Stratus
• B. Nimbostratus and Altostratus
• C. Cumulus and Cumulonimbus
• D. Cirrostratus and Altocumulus

Answer: (C)

Waterspouts form from clouds that grow tall and drive strong vertical air movement. Cumulus clouds are the growing puffballs of rising air, and when they become more energetic they develop into cumulonimbus thunderstorms. This combination of vigorous updrafts, plenty of moisture, and wind shear creates a rotating column that can extend from the cloud down to the water, producing a waterspout. The other cloud types listed are either high and wispy or broad and flat, lacking the intense vertical development and dynamic winds needed to spin a column of air into a waterspout. So the clouds most associated with this phenomenon are the cumulus family, especially when they reach cumulonimbus thunderstorm status.