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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 OBS

In forecast discussions you will come across the terms positive, neutrally and negatively tilted trough. When a trough is positive or neutrally tilted it is usually not referenced as such. However, when it becomes negatively tilted it will be referenced as such. The tilt of a trough is the angle the trough axis makes with lines of longitude.  1, record 1, English, - tilted%20trough

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A large-scale tilted trough in the upper troposphere over the middle and lower latitudes of most major oceans(particularly the North Pacific) during summer.  5, record 2, English, - tropical%20upper%2Dtropospheric%20trough

Record number: 2, Textual support number: 1 OBS

In the Northern Hemisphere, it is usually oriented NNE-SSW and may contain one or more closed cyclonic circulations.  5, record 2, English, - tropical%20upper%2Dtropospheric%20trough

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Thalweg incliné de grande envergure dans la haute troposphère aux moyennes et basses latitudes de la plupart des grands océans (particulièrement le Pacifique Nord) en été.  7, record 2, French, - thalweg%20de%20la%20haute%20troposph%C3%A8re%20tropicale

Record number: 2, Textual support number: 1 OBS

Dans l'hémisphère Nord, il est généralement orienté NNE-SSW et peut contenir une ou plusieurs circulations cycloniques fermées.  7, record 2, French, - thalweg%20de%20la%20haute%20troposph%C3%A8re%20tropicale

Record number: 2, Textual support number: 2 OBS

talweg : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).  5, record 2, French, - thalweg%20de%20la%20haute%20troposph%C3%A8re%20tropicale

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Vaguada inclinada en gran escala que aparece durante el verano en la alta troposfera, sobre las latitudes medias y bajas de la mayoría de los grandes océanos (especialmente el Pacífico norte).  1, record 2, Spanish, - vaguada%20en%20la%20troposfera%20superior%20tropical

Record number: 2, Textual support number: 1 OBS

En el hemisferio Norte está orientada comúnmente en la dirección NNE-SSW y puede contener una o más circulaciones ciclónicas cerradas.  1, record 2, Spanish, - vaguada%20en%20la%20troposfera%20superior%20tropical

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Strong upper-level disturbances form negatively-tilted troughs. Sometimes you hear television meteorologists refer to a negative-tilt trough and how it is going to spawn an intense storm. A strong upper-level disturbance can turn a routine positive-tilt trough into massive, storm-spawning negative-tilt trough.... a positive tilt trough's axis is oriented from northeast to southwest while a negative tilt trough's axis is oriented from northwest to southeast.  1, record 3, English, - positive%20tilted%20trough

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

... if the upper level trough axis(500 mb and 300 mb) is located at a significantly different location than the low level trough axis(850 mb and 700 mb), then the trough is referred to as TILTED WITH HEIGHT.  1, record 4, English, - upper%2Dlevel%20trough%20axis

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

A deep low pressure, a negatively tilted trough, and a warm and moist warm sector combination east of the Rockies often produces a severe weather outbreak.  1, record 5, English, - severe%20weather%20outbreak

Record 5,  Textual support,  French

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

However, if the upper level trough axis(500 mb and 300 mb) is located at a significantly different location than the low level trough axis(850 mb and 700 mb), then the trough is referred to as TILTED WITH HEIGHT.  1, record 7, English, - low%20level%20trough%20axis

Record 7,  Textual support,  French

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

What is meant by a "vertically tilted trough"? The trough axis connects the center of a trough or the center of the lowest closed height contour(beginning of rotation axis) through the region of maximum cyclonic curvature.  1, record 8, English, - centre%20of%20a%20trough

Record 8,  Textual support,  French

Record 8,  Textual support,  Spanish