weather that exist in the world today
You need warm, moist air from the Gulf of Mexico and cool, dry air from Canada in order for a tornado to form and happen.
When these two air masses meet (the warm and cool air) they create instability in the atmosphere.
The form near the equator over warm ocean waters.
Actually, the term hurricane is used only for the large storms that form over the Atlantic Ocean or eastern Pacific Ocean.
The generic, scientific term for these storms, wherever they occur, is tropical cyclone.
The Sun's heat evaporates the water.
It remains in the atmosphere as an invisible vapor until it condenses, first into clouds and then into raindrops.
Condensation happens when the air is cooled.
When these tiny ice crystals collide they stick together in clouds to become snowflakes.
If enough ice crystals stick together, they'll become heavy enough to fall to the ground.
Warm air expands and rises up while cold air condenses and sinks, hence resulting the flow of air and forms wind.
The basic ingredients used to make a thunderstorm are moisture, unstable air and lift.
You need moisture to form clouds and rain.
You need unstable air that is relatively warm and can rise rapidly.
Cool air can't hold as much water vapor as warm air, so some of the vapor condenses onto tiny pieces of dust that are floating in the air and forms a tiny droplet around each dust particle.
When billions of these droplets come together they become a visible cloud.
High pressure signifies a region of sinking air which tends to dry out the atmosphere resulting in less moisture to form clouds.
Deserts are locations with sunny or mostly sunny skies due to high pressure systems influencing the weather pattern much of the year.
They may look just like snowballs, but the can do a lot of damage.
So basically, a cloud on the ground.
Your walking on a cloud whenever theirs fog around.