GEOLOGY

Detailed explanation-1: -In this area, known as Tornado Alley, storms are caused when dry cold air moving south from Canada meets warm moist air traveling north from the Gulf of Mexico. Tornadoes can form at any time of year, but most occur in the spring and summer months along with thunderstorms.

Detailed explanation-2: -In Tornado Alley, warm, humid air from the equator meets cool to cold, dry air from Canada and the Rocky Mountains. This creates an ideal environment for tornadoes to form within developed thunderstorms and supercells.

Detailed explanation-3: -Tornadoes form from strong thunderstorms. In Canada, conditions that can create a tornado involve warm, moist air travelling up from the U.S., which then combines with cool air from am existing storm. As the airs mix, they create an instability and an updraft, which is strong winds pulling toward the clouds.

Detailed explanation-4: -In Canada, tornadoes most commonly occur in southernmost Saskatchewan, Manitoba and Ontario, but can also occur in southern Alberta, southern Quebec and New Brunswick. NTP data suggests peak tornado season in southern Ontario is now more likely later in the summer.

Detailed explanation-5: -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.