Extreme weather or extreme climate, according to Wikipedia refers to events that includes unexpected, unusual, severe, or unseasonal weather that cause severe devastation to human lives, properties and the ecosystem.
Examples of extreme weather events incudes:
1) Tornado - which is a powerful funnel-shaped column of spiralling air that is composed of clouds, strong winds and heaving rains.
2) Hurricane - which is also called a cyclone is storm that forms over warm tropical ocean water and is composed of strong winds and heavy rains.
3)Blizzard - which is a heavy snowstorm with heavy winds that range over 33mph. It is characterized by heavy snow and very cold temperatures.
4) Drought - which is a long period of no rainfall
5) Floods - Floods are characterized by heavy rainfall where water spreads over land that is normally covered in water.