A cumulonimbus cloud produces rain.
Tornadoes are produced by cumulonimbus clouds.
Tornadoes are produced by cumulonimbus clouds. Often a wall cloud appears near the base of a cumulonimbus before a tornado forms.
Tornadoes are produced by cumulonimbus clouds. Other clouds associated with tornadoes include wall clouds and funnel clouds.
Cumulonimbus clouds are storm clouds.
the clouds are cumulonimbus clouds
cumulonimbus clouds
Cumulonimbus clouds.
Cumulonimbus clouds Cumulonimbus clouds.
Cumulonimbus are the clouds of thunderstorms.
Cumulonimbus clouds bring thunderstorms.
All tornadoes are produced by cumulonimbus clouds.
Cumulonimbus clouds are also called thunderheads.