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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

An organized mass of thunderstorms with a slight cyclonic wind circulation of less than 20 knots.  2, record 1, English, - tropical%20disturbance

Record number: 1, Textual support number: 1 CONT

The first sign of hurricane genesis(development) is the appearance of a cluster of thunderstorms over the tropical oceans, called a tropical disturbance. Tropical disturbances most commonly form in one of three different ways, all of which involve the convergence of surface winds. Near the equator, the easterly trade winds converge(come together) to trigger numerous thunderstorms in a region called the Intertropical Convergence Zone(ITCZ). Occasionally, a cluster of thunderstorms will break away from the ITCZ and become better organized. Another mechanism is the convergence of air that occurs along a mid-latitude frontal boundary that has made its way into the Gulf of Mexico or off the East Coast of Florida. The last mechanism is the easterly wave, a tropical disturbance that travels from east to west in the region of the tropical easterlies. Converging winds on the east side of the easterly wave trigger the development of thunderstorms. In fact, most Atlantic hurricanes can be traced to easterly waves that form over Western Africa.  3, record 1, English, - tropical%20disturbance

Record number: 1, Textual support number: 1 OBS

Tropical disturbance : light surface winds with indications of cyclonic circulation.  4, record 1, English, - tropical%20disturbance

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Zone dépressionnaire présentant une convection renforcée et une circulation tourbillonnaire dans laquelle les vents n'excèdent pas 50 km/h (force 6 Beaufort).  2, record 1, French, - perturbation%20tropicale

Record number: 1, Textual support number: 1 CONT

Dans un sens beaucoup plus précis, il arrive qu'une perturbation atmosphérique dénomme les conditions météorologiques régnant sur une région où apparaissent les signes de développement d'une circulation du vent associée à une faible dépression. En particulier, une perturbation tropicale (qui ne s'accompagne en surface que de vents faibles) s'oppose à une dépression tropicale (où le vent s'inscrit déjà dans une circulation bien caractérisée et où sa vitesse moyenne peut aller jusqu'à 33 nœuds, soit 61 km/h), à une tempête tropicale (où le maximum de cette vitesse moyenne se place entre 34 et 63 nœuds, soit un intervalle de 62 à 117 km/h) et à un cyclone tropical (où ce maximum est au moins de 64 nœuds, soit 118 km/h).  3, record 1, French, - perturbation%20tropicale

Record number: 1, Textual support number: 1 OBS

perturbation tropicale : vents de surface légers et indices de circulation cyclonique.  4, record 1, French, - perturbation%20tropicale

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 OBS

Perturbación tropical: Vientos de superficie ligeros con indicios de circulación ciclónica.  1, record 1, Spanish, - perturbaci%C3%B3n%20tropical

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The atmospheric process by which an intense tropical storm develops at a local heat-source(or "warm-core") over the ocean; a tremendous vertical disturbance is set up, indicated by a whorl of towering "cumulus" clouds.  2, record 2, English, - cyclogenesis

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Processus d'apparition ou d'intensification d'une circulation cyclonique.  3, record 2, French, - cyclog%C3%A9n%C3%A8se

Record number: 2, Textual support number: 1 CONT

En zone tempérée, la «cyclogénèse» résulte soit de l'«advection» d'air froid au sein d'une masse d'air chaud humide et instable [...], soit de «l'ondulation» d'un «front» stationnaire.  4, record 2, French, - cyclog%C3%A9n%C3%A8se

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Proceso de iniciación o intensificación de una circulación ciclónica.  2, record 2, Spanish, - ciclog%C3%A9nesis

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A synoptic-scale disturbance which moves from east to west, superimposed on the basic easterly flow of the tropics (trade winds zone).  4, record 3, English, - easterly%20wave

Record number: 3, Textual support number: 1 CONT

The last mechanism is the easterly wave, a tropical disturbance that travels from east to west in the region of the tropical easterlies. Converging winds on the east side of the easterly wave trigger the development of thunderstorms. In fact, most Atlantic hurricanes can be traced to easterly waves that form over Western Africa.  5, record 3, English, - easterly%20wave

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Perturbation à l'échelle synoptique qui se déplace d'est en ouest, superposée au courant de base des vents d'est tropicaux (zone des alizés).  3, record 3, French, - onde%20d%27est

Record number: 3, Textual support number: 1 CONT

Les vagues de l'est, que l'on appelle aussi «ondes tropicales», sont des creux barométriques orientés du nord au sud, qui se déplacent d'est en ouest sous les tropiques et sont accompagnés de nuages et d'orages.  2, record 3, French, - onde%20d%27est

Record 3,  Textual support,  Spanish

Record number: 3, Textual support number: 1 DEF

Perturbación en escala sinóptica que se desplaza del este al oeste, superpuesta a la corriente básica de los vientos del este tropicales (zona de los alisios).  1, record 3, Spanish, - onda%20del%20este

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

tropical disturbance : A discrete tropical weather system of apparently organized convection--generally 100 to 300 Nm in diameter--originating in the tropics or subtropics, having a nonfrontal migratory character, and maintaining its identity for 24 hours or more.  1, record 4, English, - subtropics

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

tropical disturbance : A discrete tropical weather system of apparently organized convection--generally 100 to 300 Nm in diameter--originating in the tropics or subtropics, having a nonfrontal migratory character, and maintaining its identity for 24 hours or more.  1, record 5, English, - organized%20convection

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

«Dépression tropicale» est le terme générique pour désigner un système synoptique de basses pressions, non frontal, situé au-dessus des mers tropicales ou subtropicales avec une convection organisée (ex : activité orageuse) et une circulation cyclonique de surface bien définie.  1, record 5, French, - convection%20organis%C3%A9e

Record 5,  Textual support,  Spanish