Weather: cyclone (S Hemisphere)

Illustration of a hurricane, or tropical cyclone: a storm system characterized by a low pressure center and numerous thunderstorms that produce strong winds and flooding rain. Depending on its location and strength, a tropical cyclone is referred to by names such as hurricane, typhoon, tropical storm, cyclonic storm, tropical depression, and simply cyclone. Has counterclockwise rotation in the Northern Hemisphere and clockwise rotation in the Southern Hemisphere due to the Coriolis Effect

Illustration of wind flow

Illustration of a cloud belonging to a class characterized by globular masses or rolls in layers or patches. Alto, "high", cumulus, "heaped". Usually white or gray, and often occurs in sheets or patches with wavy, rounded masses or rolls. Often are seen preceding a cold front, and their presence on a warm, humid, summer morning frequently signals the development of thunderstorms later in the day

Wind

Illustration of stratocumulus clouds, belonging to a class characterized by large dark, rounded masses, usually in groups, lines, or waves. Weak convective currents create shallow cloud layers because of drier, stable air above preventing continued vertical development. Vast areas of subtropical and polar oceans are covered with massive sheets of stratocumuli

Illustration of a cumulus cloud, a cloud with noticeable vertical development and clearly defined edges. Cumulus means "heap" or "pile" in Latin. They are often described as "puffy" or "cotton-like" in appearance. Cumulus clouds typically form when warm air rises and reaches a level of comparatively cool air, where the moisture in the air condenses. This usually happens through convection, where a parcel of air is warmer than the surrounding air

Illustration of stratus clouds, meaning layer or blanket in Latin. Characterized by horizontal layering with a uniform base. Flat, featureless clouds of low altitude varying in color from dark gray to nearly white obscuring the disk of the sun. Essentially above-ground fog formed either through the lifting of morning fog or when cold air moves at low altitudes over a region

Illustration of cirrus clouds, which are characterized by thin, wisplike strands, often accompanied by tufts, leading to their common (non-standard) name of mare's tail. Cirrus clouds are formed when water vapor freezes into ice crystals at altitudes above 8000 meters (26,000 ft). Due to the sparse moisture at a high altitude, they tend to be very thin