What type of cloud can produce tornadoes?

My greatest fear is tornadoes, and we are supposed to have severe weather today in Boonville, Indiana, right above evansville indiana, zip code 47601, in case you want to look it up. The weather channel says mostly cumulonimbus clouds today, also for the storms. Do/can these clouds produce tornadoes/funnel clouds? If so, how often? if not, then what clouds can?What type of cloud can produce tornadoes?
While it is true that cumulonimbus clouds can produce tornadoes, most do not. I looked up your area and I really wouldn't be worried if I were you. You have the potential of getting some powerful storms later on in the afternoon and evening, but the chances of seeing a tornado is very very slim.
What to watch for is a line of alto-cumulus clouds with round half circle forms underneath. It looks sort of like bubble wrap. You may also see a very high cloud ( cumulonimbus) with an anvil shaped top pointing in the direction of the jet stream is flowing.If the wind on the ground is perpendicular to the direction the anvil is pointing this shows that there is wind shear or an spinning of air. If the air is very cold over warm air the cold air falls and the warm air rises and spins because of the direction of the wind above is near perpendicular to the wind at the surface. If the vorticity (spin) is great enough a sink is created like opening a drain plug in the bath tub.What type of cloud can produce tornadoes?
Tornadoes sometimes come out of thunderstorms which are cumulonimbus clouds. A more specific type of cloud they some appear is what is known as a wall cloud, a lowering of the base of the thunderstorm, typically on its back side.



In the great majority of cases thunderstorms do not produce tornadoes. It is even a rarity in severe storms. The chance that you would experience a tornado is extremely small, even today there as the atmosphere is not really favorable for tornado formation. Hail and strong, gusty winds are the more likely threat from any storms in that area today. A tornado is not impossible, just very unlikely.
Tornadoes form from cumulonimbus clouds only but all cumulonimbus clouds do not produce tornadoes. Cumulonimbus clouds form almost all over the world but tornadoes form only in a few places.A particular type of cumulonimbus cloud(which is nothing but a cluster of cumulonimbus clouds) called 'super cells' only produce tornadoes.These super cells are long-lived thunderstorms(produced by cumulonimbus clouds) having a rotating updraft which is tilted with height due to change in wind direction and wind speed with altitude.What type of cloud can produce tornadoes?
Most tornadoes form under unstable conditions. Weak tornadoes form under cumulonimbus clouds, anvil-shaped clouds filled with violent currents, and breed thunderstorms. Stronger tornadoes form under supercell clouds, enhanced cumulonimbus clouds who have developed severe thunderstorms, which tend to cause heavy rain, strong gusts of wind, frequent lightning and tornadoes
Cumulonimbus coulds create tornadoes..they are the biggest cloud formation so not hard to notice:)
Cumulonimbus clouds are the ones to watch for tornados.
Supercell with wall cloud 99% of the time