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An environmental emergency is a sudden onset disaster or accident resulting from natural, technological or human-induced factors, or a combination of these, that cause or threaten to cause severeenvironmental damage as well as loss of human lives and property.
A tornado is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, inrare cases, the base of acumulus cloud.
A blizzard is a severe snowstorm characterized by strong winds and low temperatures
A tropical cyclone is a storm system characterized by a low-pressure centerand numerous thunderstorms that produce strong winds and heavy rain. 
In meteorology, a cyclone is an area of closed, circular fluid motion rotating in the same direction as the Earth. This isusually characterized by inwardspiraling winds that rotate counterclockwise in the Northern Hemisphere andclockwise in the Southern Hemisphere of the Earth.
Monsoon is traditionally defined as a seasonalreversing wind accompanied by corresponding changes in precipitation,[1] but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetricheating of land and sea.
An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth's crust that creates seismic waves. 
A wildfire is anyuncontrolled fire in combustible vegetation that occurs in the countryside or a wilderness area
A flood is an overflow of water that submerges land.[1] The European Union (EU) Floods Directive defines a floodas a covering by water of land not normally covered by water
A snowsquall (or snow squall) is a sudden moderately heavy snow fall with blowing snowand strong, gusty surface winds.
Winter storms canrange from a moderate snow over a few hours to a blizzard with blinding, wind-driven snow that lasts for several days. 
Wind chill (often popularly called the wind chill factor) is thefelt air...