Tornadoes are not a result of oceanic conditions, they are a result of atmosphereic conditions. See the related question for more information.
Yes. All tornadoes are produced by thunderstormsYes, all tornadoes are produced by thunderstorms.However, only a small percentage of thunderstorms actually produce tornadoes.
Thunderstorms form from cumulonimbus clouds, but they don't have to be low. Some of these thunderstorms can produce tornadoes, but not all. A thunderstorm is the only thing that can produce a tornado. Tornadoes form best from low-based thunderstorms.
Yes, tornadoes typically form from severe thunderstorms known as supercells. These storms are characterized by rotating updrafts known as mesocyclones, which can produce the conditions necessary for tornado formation. However, not all thunderstorms produce tornadoes.
Tornadoes are often associate with a collision between cool, dry air and warm, moist air. This however is not the direct cause of tornadoes. Such collisions produce thunderstorms, which, given the right conditions, can produce tornadoes.
Yes, it is possible for tornadoes to occur during a blizzard. These tornadoes are known as "snow tornadoes" and typically form in the same way as traditional tornadoes, but are less common and generally weaker in intensity.
Cold fronts often do result in storms that produce tornadoes, but are not a direct cause of tornadoes. Not all tornadoes are associated with cold fronts, nor do all cold fronts result in the formation of tornadoes. Other conditions, such as wind shear and instability, need to be present for tornadoes to occur. Squall lines can produce tornadoes, but those tornadoes are usually short-lived and weak. Tornadoes are more often associated with discrete supercell thunderstorms.
Humidity itself does not cause tornadoes. Tornadoes form from the interaction of different air masses with varying temperature, humidity, and wind conditions. High humidity levels can contribute to the instability needed for severe thunderstorms that can produce tornadoes under the right atmospheric conditions.
Warm, moist air, such as that found in the tropics is what fuels thunderstorms, and strong thunderstorms are what produce tornadoes. However, tornadoes are more often found in more temperate areas, where colliding air masses can produce even stronger thunderstorms.
About 1% of thunderstorms produce tornadoes.
Tornadoes are most often associate with cold fronts. This is because a cold front can produce convection that leads to strong thunderstorms. Under the right conditions these thunderstorms can produce tornadoes.
Nimbus clouds can be associated with severe weather, including tornadoes, but they do not directly cause tornadoes. Tornadoes form when conditions such as instability, wind shear, and a triggering mechanism come together in the right way. Nimbus clouds can be a sign of these conditions, but they are not the sole cause of tornadoes.
About 1% of severe thunderstorms produce tornadoes.