An upper tropospheric cyclonic vortex is a vortex, or a circulation with a definable center, that usually moves slowly from east-northeast to west-southwest...

0.CO;2. Joint Typhoon Warning Center (2010). "2.5 Upper Tropospheric Cyclonic Vortices". United States Navy. Retrieved 2009-04-24. Jason E...

A multiple-vortex tornado is a tornado that contains several vortices (called subvortices or suction vortices) revolving around, inside of, and as part...

The Arctic tropospheric polar vortex A circumpolar vortex, or simply polar vortex, is a large region of cold, rotating air; polar vortices encircle both...

Cyclonic vortex may refer to: Upper tropospheric cyclonic vortex, a vortex that usually moves slowly from east-northeast to west-southwest, and generally...

opposite to that of the flow above a region of low pressure. Unlike a cyclonic storm, anticyclonic storms are typically associated with fair weather and...

to tornadoes. Funnel clouds are visual phenomena, but these are not the vortex of wind itself. If a funnel cloud touches the surface the feature is considered...

to form whirling eddies of air. These eddies can contract a tornado-like vortex that sucks in debris and combustible gases. The phenomenon is sometimes...

mesoscale. Upper level cyclones can exist without the presence of a surface low, and can pinch off from the base of the tropical upper tropospheric trough...

layer vorticity upward into a vertical axis and tightens it into a strong vortex. Landspouts can also occur due to interactions from outflow boundaries,...

tropical cyclone is called a hurricane (/ˈhʌrɪkən, -keɪn/), typhoon (/taɪˈfuːn/), tropical storm, cyclonic storm, tropical depression, or simply cyclone. A...

extratropical cyclone (or almost any other kind of cyclonic vortex in the atmosphere), the two may combine to become a binary cyclone, where the vortices...

within a region of higher pressure. Mid-tropospheric systems, such as the subtropical ridge, deflect tropical cyclones around their periphery and cause a temperature...

A waterspout is an intense columnar vortex (usually appearing as a funnel-shaped cloud) that occurs over a body of water. Some are connected to a cumulus...

that the white sharks dove in both cyclones but favored the anticyclone which had three times more dives as the cyclonic eddies. Additionally, in the Gulf...

horizontally inward to the bottom of the newly forming vortex. As more hot air rushes in toward the developing vortex to replace the air that is rising, the spinning...

largest tropical cyclones are observed in the western North Pacific tropics, where the largest values of relative SST and mid-tropospheric relative humidity...

showers and thunderstorms in areas of cyclonic flow on the backside of extratropical cyclones. A mesoscale convective vortex--(MCV)--is a mid-level low-pressure...

intense tropical cyclone. Eyewall mesovortices are similar, in principle, to small "suction vortices" often observed in multiple-vortex tornadoes. In these...

older subtropical cyclone definition term is still used, which requires a weak circulation forming underneath a mid to upper-tropospheric low which has cut...

A whirlwind is a phenomenon in which a vortex of wind (a vertically oriented rotating column of air) forms due to instabilities and turbulence created...

In meteorology, the synoptic scale (also called the large scale or cyclonic scale) is a horizontal length scale of the order of 1,000 km (620 mi) or more...

Dictionary of English Etymology. Oxford University Press. p. 965. typhoon. cyclonic storm in the China seas. XVI [century]. Adoption of Chinese tai fung, dialect...

mesocyclone is a meso-gamma mesoscale (or storm scale) region of rotation (vortex), typically around 2 to 6 mi (3.2 to 9.7 km) in diameter, most often noticed...

preferred tropical cyclone tracks. Areas west of Japan and Korea tend to experience far fewer September–November tropical cyclone impacts during El Niño...

northeastwards for a couple of days over unusually warmer waters, favorable upper-level tropospheric winds and strong low-level convergence, which led to its intensification...

hemisphere's polar region. Closely related to this concept is the polar vortex, a rotating low-pressure circle of cold air around the poles. Surface temperatures...

whirlwind over water (or sometimes wet land) that has drawn fog into the vortex, thus rendering it visible. They form over large lakes and oceans during...

clouds have a feature similar to an "eye", as in a mesoscale convective vortex. Attached to many wall clouds, especially in moist environments, is a cauda...

which is cyclonic in upwards of 98 percent of tornadoes.[citation needed] Many anticyclonic tornadoes are smaller and weaker than cyclonic tornadoes...