GEOLOGY

Detailed explanation-1: -When warm, moist air collides with cold, dry air, tornadoes emerge. Generally, thunderstorms form when cooler, denser air is pushed over warmer air which is the cause of tornadoes. Updrafts are caused by warm air rising through the cold air.

Detailed explanation-2: -Tornadoes develop from severe thunderstorms in warm, moist, unstable air along and ahead of cold fronts. Such thunderstorms also may generate large hail and damaging winds. When intense springtime storm systems produce large, persistent areas that support tornado development, major outbreaks can occur.

Detailed explanation-3: -The key atmospheric ingredients that lead to tornado potential are instability-warm moist air near the ground, with cooler dry air aloft and wind shear-a change in wind speed and/or direction with height.

Detailed explanation-4: -The warm air rises from the lower atmosphere causing an updraft, which mixes with the heavier cold air.

Detailed explanation-5: -Tornadoes form when two different air masses meet during powerful storms. Under these conditions, cold air can trap warm air. With nowhere to rise, the warm air begins to spin.