The state of the atmosphere at a given time and place, with respect to variables such as temperature, moisture, wind velocity, and barometric pressure.
A severe tropical cyclone having winds greater than 64 knots (74 miles per hour; 119 kilometers per hour), originating in the equatorial regions of the Atlantic Ocean or Caribbean Sea or eastern regions of the Pacific Ocean, traveling north, northwest, or northeast from its point of origin, and usually involving heavy rains.
A tropical cyclone or hurricane of the western Pacific area and the China seas.
A very large ocean wave that is caused by an underwater earthquake or volcanic ...view middle of the document...
(meteorology) rapid inward circulation of air masses about a low pressure center; circling counterclockwise in the northern hemisphere and clockwise in the southern.
The filling or covering with water or other fluid; overflow; inundation; the filling anything to excess.
A depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof.
* Low Pressure Area (LPA)
Not forceful; "a low-pressure salesman"; "a low-pressure campaign".
Rainy season in southern Asia when the southwestern monsoon blows, bringing heavy rains.
* Inter Tropical Convergance Zone (ITCZ)
A broad area of low atmospheric pressure located in the equatorial region where the northeasterly and southeasterly trade winds converge, extending approximately 10° north and south of the equator. As warm, humid air converges on this zone, it rises and cools, forming clouds and frequent, heavy showers. The doldrums occur within the intertropical convergence zone.
A localized and violently destructive windstorm occurring over land characterized by a funnel-shaped cloud extending toward the ground.
A tornado passing over water and picking up a column of water and mist.
A wave of unusually hot weather.
To drop or descend under the force of gravity, as to a lower place through loss or lack of support.
The rising of a body of water and its overflowing onto normally dry land; "plains fertilized by annual inundations"
A sudden flood of great volume, usually caused by a heavy rain.
The established value of a monetary unit expressed in terms of a monetary unit of another country using the same metal standard.
* El Nino
A warm ocean current of variable intensity that develops after late December along the coast of Ecuador and Peru and sometimes causes catastrophic weather conditions.
* La Nina
A cooling of the surface water of the eastern and central Pacific Ocean, occurring somewhat less frequently than El Niño events but causing similar, generally opposite disruptions to global weather patterns. La Niña conditions occur when the Pacific trade winds blow more strongly than usual, pushing the sun-warmed surface water farther west and increasing the upwelling of cold water in the eastern regions. Together with the atmospheric effects of the related southern oscillation , the cooler water brings drought to western South America and heavy rains to eastern Australia and Indonesia.
* Tropical Storm
A tropical cyclone of less than hurricane force.
* Tropical Depression
A tropical depression is designated when the first appearance of a lowered pressure and organized circulation in the center of the thunderstorm complex occurs. A surface pressure chart will reveal...