Search results
- Dictionarytornado/tɔːˈneɪdəʊ/
noun
- 1. a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system.
Powered by Oxford Dictionaries
Oct 10, 2024 · Tornado, a small-diameter column of violently rotating air developed within a convective cloud and in contact with the ground. Tornadoes occur most often in association with thunderstorms during the spring and summer in the mid-latitudes of both the Northern and Southern Hemispheres. These whirling.
A tornado is a storm with powerful rotating winds that form a column. The column reaches from a cloud down toward the ground. The winds of a tornado may reach speeds up to 300 miles (500 kilometers) per hour. Such violent winds can flatten buildings and whip heavy objects, such as cars, into the air.
Oct 10, 2024 · Tornado - Wind Speed, Vortex, Destruction: Fully developed tornadoes contain distinct regions of airflow. As is shown in the figure, the central axis of circulation is within the core region, a roughly cylindrical area of lower atmospheric pressure that is bounded by the maximum tangential winds (the fastest winds circulating around the centre of the tornado). If a visible funnel cloud forms, it will occur within the core region. The funnel cloud consists of a column of water droplets ...
tornado (noun) tornado /toɚ ˈ neɪdoʊ/ noun. plural tornadoes or tornados. Britannica Dictionary definition of TORNADO. [count] : a violent and destructive storm in which powerful winds move around a central point. in the path of a tornado. a tornado warning.
The updraft of warm air causes the vortex to swell with water vapor, creating a spiraling funnel cloud at its center—the first visible sign that a tornado is brewing. The cool downdraft of air then battles the funnel cloud’s upward spiral, focusing the cloud into a smaller area and increasing its speed. With enough pressure and weight from ...
A tornado cyclone is a core of concentrated rotation within the storm from which tornadoes are spawned. The strength of the tornado cyclone usually pulsates, creating a sequence of tornadoes. This gives rise to what is known as a tornado family. Tornado families typically have two or three members, though they can be much larger.
Below is the article summary. For the full article, see tornado. tornado, Violent low-pressure storm, relatively small in diameter but with very rapidly rotating winds and an intense updraft near the centre. The relatively low pressure at the centre of a tornado’s funnel-like vortex causes cooling and condensation, making the storm visible as ...
Oct 10, 2024 · Tornado - Prediction, Detection, Forecasting: The first step in predicting the likely occurrence of tornadoes involves identifying regions where conditions are favourable to the development of strong thunderstorms. Essential ingredients for the occurrence of such storms are cool, dry air at middle levels in the troposphere superimposed over a layer of moist, conditionally unstable air near the surface. Conditions commonly leading to thunderstorm development occur along the warm side of the ...
Oct 10, 2024 · Tornado - Wind, Vortex, Supercell: Tornadoes may occur wherever conditions favour the development of strong thunderstorms. Essential conditions for such storms are the presence of cool, dry air at middle levels in the troposphere, overlying a layer of moist, conditionally unstable air near the surface of the Earth. Conditional instability occurs when a saturated air parcel (air at 100 percent relative humidity) continues to rise once set in motion, but an unsaturated air parcel resists being ...
Other articles where tornado outbreak is discussed: tornado: Tornado outbreaks: A tornado outbreak is the occurrence of several tornadoes over a region, usually due to thunderstorms embedded in the same synoptic-scale weather system. Outbreaks are classified according to the number of tornadoes reported: small (6 to 9 tornadoes), medium (10 to 19), and…
