The arrows labelled 'v' represent the mean tracks of tropical revolving storms ? [ Certification weather ]

Question 145-1 : December to april and are called cyclones december to april and are called hurricanes may to november and are called typhoons may to november and are called willy willys

exemple 245 December to april and are called cyclones. — Cyclone from greek 'kuklos' means 'circle' is a generic term for all tropical revolving storms according to the geographical location the terminology differs . cylcone in the south western and northern pacific ocean and the south western indian ocean . hurricane as derived from huracàn a taino and carib god or hunraken the mayan storm in the northern atlantic ocean and the north eastern and south western pacific ocean east of 160e . typhoon from chinese t'ai fung located in in the north western pacific ocean . 603. December to april and are called cyclones.

In the north atlantic you can often see a series of depressions located in a ?

Question 145-2 : Are normally generated at the polar front are residuals of tropical cyclones in the florida area are primarily generated by the vaporization process that takes place above the ocean are mostly generated by convergence between the subtropical highs and the equatorial trough

Easa 2014..polar front depressions which develop due to the polar front and cause bad weather conditions from the surface to the tropopause move from the atlantic towards europe their tracks are variable .regions located south of each depression experience frontal weather

What are the typical weather conditions in an area with a flat pressure pattern ?

Question 145-3 : Generally fine weather possibly thunderstorms in the afternoon or evening fine weather with strong westerly winds steady rainfall only short term weather improvements

exemple 253 Generally fine weather, possibly thunderstorms in the afternoon or evening. — Easa 2014 ..during summer in the centre of a stationary high pressure zone = flat pressure pattern we have light or no wind . 492.thunderstorms may occur in the summer months in the afternoon or evening due to convective activity the land warms causing convective lifting = cb Generally fine weather, possibly thunderstorms in the afternoon or evening.

What change in pressure will occur at point b during the next hour . 392 ?

Question 145-4 : Approximately constant pressure a rise in pressure a drop in pressure irregular fluctuations

exemple 257 Approximately constant pressure. — Easa 2014..without a scale we can't tell if the cold front will pass through this position during the next hour but the question statement is during the next hour not 'in one hour' .spacing of isobars at point b and in front of the cold front are the same therefore the pressure will not change during the next hour .in about one and a half hours we can expect to see a drop in temperature and pressure Approximately constant pressure.

A stationary observer in the northern hemisphere is situated in front of a ?

Question 145-5 : Veering initially veers then backs initially backs then veers backing

exemple 261 Veering. — Ecqb03 july 2016 .warning looks like q978 but the center of the depression passes north of the observer in q978 it passes south .. 567.a weering wind is a wind that turns clockwise .a backing wind is a wind that turns counter clockwise Veering.

The eye of a hurricane ?

Question 145-6 : Extends from the surface to the top of the hurricane is filled with air which is colder than the air in the surrounding regions has a diameter of a least 100 nm cannot be spotted by satellites

exemple 265 Extends from the surface to the top of the hurricane. — Extends from the surface to the top of the hurricane.

What type of clouds visible even at a long distance could indicate the presence ?

Question 145-7 : Dense cirrus ci nimbostratus ns spread over a large area frequent stratocumulus sc excessive accumulation of cumulus cu

exemple 269 Dense cirrus (ci). — Dense cirrus (ci).

Assuming a generalised zonal system of world wind circulation the travelling ?

Question 145-8 : S and y t and x only t u and w

exemple 273 S and y. — Revised ecqb04 january 2018 S and y.

Troughs are extensions of ?

Question 145-9 : Low pressure areas and generally have large amounts of cloud low pressure areas and generally have small amounts of cloud high pressure areas and generally have small amounts of cloud high pressure areas and generally have small amounts of cloud

exemple 277 Low pressure areas and generally have large amounts of cloud. — Low pressure areas and generally have large amounts of cloud.

Refer to the chart 050 10850a the pressure system essentially located in square ?

Question 145-10 : A ridge a col a trough a low

An aircraft is flying from point a to point b at the flight level corresponding ?

Question 145-11 : The true altitude will be higher over b than over a the true altitude will be higher over a than over b wind speed over b is higher than over a the wind speeds over a and b are equal

exemple 285 The true altitude will be higher over b than over a. — Admin . 485.you are flying at a 'constant indicated altitude' since your altimeter setting is 1013 2 hpa .but you are flying to an aera where pressure is stronger your true altitude will be higher The true altitude will be higher over b than over a.

Refer to annex 050 10720a .assuming a generalised zonal system of world ?

Question 145-12 : Subtropical high pressure systems intertropical convergence zone itcz travelling low pressure systems ne trade winds systems

exemple 289 Subtropical high pressure systems. — Ecqb04 january 2018 .. 584 Subtropical high pressure systems.

In temperate latitudes what weather conditions may be expected over land during ?

Question 145-13 : Calm winds haze ts sh cb ts ns

exemple 293 Calm winds, haze. — Admin .during summer in the centre of a stationary high pressure zone = large flat pressure pattern we have light or no wind . 492.haze is an atmospheric phenomenon where dust smoke and other dry particles obscure the clarity of the sky Calm winds, haze.

Which weather phenomena are typical for the northern side of the alps with ?

Question 145-14 : Good visibility turbulence continuous precipitation severe turbulence decrease in temperature moderate to severe icing icing huge mass of clouds

exemple 297 Good visibility, turbulence. — Admin . 520.the southerly wind will give a foehn 'from south' clouds on the southern side good visibility on the northern side but turbulence due to the orographic waves and rotors . 610 Good visibility, turbulence.

What weather is prevalent in easterly waves ?

Question 145-15 : Thunderstorms and rain continuous rain clear skies frontal weather

exemple 301 Thunderstorms and rain. — Admin .easterly waves are 'long waves' that occur within the trade wind belt start over north western africa and propagate toward the west in the lower tropospheric tradewind flow across the atlantic ocean .approximate location amplitude and wavelength of easterly waves . 495.at first an easterly wave has a small amplitude and produces mild rain showers powerful thunderstorms and the force of high altitude winds amplify the wave when atmospheric conditions are favourable several severe thunderstorms begin to form and eventually a tropical storm may develop Thunderstorms and rain.

Assuming the usual direction of movement to which position will the polar ?

Question 145-16 : Position 3 position 4 position 2 position 1

exemple 305 Position 3. — Admin . 496.the isobars in the warm sector tend to be parallel and straight and give an indication in the direction of the system until it occludes Position 3.

Under the weather conditions depicted which of the following statements is ?

Question 145-17 : Thunderstorms may occur in the summer months over central europe severe gradient wind likely over central europe moderate to strong foehn in the alps radiation fog is unlikely in central europe in the winter

exemple 309 Thunderstorms may occur in the summer months over central europe. — Admin .over central europe you will certainly experience thunderstorms in the summer months and radiation fog in the winter but we do not have enough informations to guess the foehn intensity over the alps and definitively as the isohypses are well spaced severe gradient wind is unlikely to be encounter Thunderstorms may occur in the summer months over central europe.

For an aircraft what are the meteorological dangers associated with a harmattan ?

Question 145-18 : Dust and poor visibility thunderstorms sand up to fl 150 hail

exemple 313 Dust and poor visibility. — Dust and poor visibility.

What is the strong relatively cold katabatic wind blowing down the northern ?

Question 145-19 : Bora ghibli mistral scirocco

exemple 317 Bora. — Admin .the bora comes from the yugoslavian mountains to the adriatic sea it is a katabatic wind meaning 'going downhill' which means that it is cold dry and often strong .the air from the bora wind comes from the top of the mountains and it is set in motion because of the warmth below because the wind moves down the mountain it strengthens .the bora develops during the winter the word 'bora' means wind from the mountain in greek greece lies just below yugoslavia Bora.

Which one of the following statements regarding the intertropical convergence ?

Question 145-20 : Frequent and widespread thunderstorms are to be expected within the area of the itcz thunderstorms seldom occur within the area of the itcz the itcz is always associated with a strong jet stream the itcz does not change its position during the course of the year

exemple 321 Frequent and widespread thunderstorms are to be expected within the area of the itcz. — Frequent and widespread thunderstorms are to be expected within the area of the itcz.

In which of the following bands of latitude is the intertropical convergence ?

Question 145-21 : 0° 7°n 3° 8°s 8° 12°s 7° 12°n

exemple 325 0° - 7°n. — Admin .in january the itcz between dakar and rio de janeiro is most likely to be encountered between 0° et 7°n . 593.red lines show the maximum extreme positions 0° - 7°n.

When are the rainy seasons in equatorial africa ?

Question 145-22 : March to may and october to november december to february and july to october march to may and august to october april to july and december to february

exemple 329 March to may and october to november. — Admin .the rain is associated with the itcz which follows the sun and the sun crosses the equator at the equinoxes end of march end of september March to may and october to november.

Which of the following best describes the intertropical convergence zone ?

Question 145-23 : The zone where the trade winds of the northern hemisphere meet those of the southern hemisphere the zone where the harmattan meets the north easterly trade winds over africa the zone where cold fronts form in the tropics the zone where the west winds meet the subtropical high pressure belt

exemple 333 The zone where the trade winds of the northern hemisphere meet those of the southern hemisphere. — Admin . 596 The zone where the trade winds of the northern hemisphere meet those of the southern hemisphere.

What is the likely track for a hurricane in the caribbean area ?

Question 145-24 : West in the earlier stages and later turning north east east then south west deep into the usa west in the earlier stages and later turning south east

exemple 337 West in the earlier stages and later turning north east. — Admin . 510.map showing areas affected by hurricanes in the caribbean area West in the earlier stages and later turning north east.

During which seasons are hurricanes most likely to appear in the northern ?

Question 145-25 : Summer and autumn winter all seasons winter and spring

exemple 341 Summer and autumn. — Admin .the atlantic hurricane season runs from june 1st to november 30th the atlantic basin includes the atlantic ocean caribbean sea and gulf of mexico Summer and autumn.

At what time of the year are typhoons most likely to occur over the southern ?

Question 145-26 : July to november september to january january to may may to july

exemple 345 July to november. — Admin . 588.the season for typhoons tropical revolving storms in north western pacific ocean extends from summer to autumn July to november.

On which coast of north america is the danger of tropical revolving storms the ?

Question 145-27 : Se coast w coast n coast ne coast

exemple 349 Se coast. — Admin . 510.tracks of atlantic tropical cyclones from 1851 to 2005 . 519.the danger is the greatest along the south east coast including mexican gulf and new orleans l siana mississippi florida .tropical revolving storms are called 'hurricanes' in the northern atlantic ocean and the north eastern and south western pacific ocean east of 160e Se coast.

What is characteristic of the pamperos ?

Question 145-28 : A marked advance of cold air in south america katabatic winds in the atlas mountains a marked advance of cold arctic air in north america foehn conditions in the spanish pyrenees

exemple 353 A marked advance of cold air in south america — A marked advance of cold air in south america

Where during a flight from marseille to dakar in july may the itcz be ?

Question 145-29 : In the vicinity of dakar at the latitudes of gibraltar at the latitudes of algeria near the canary islands

exemple 357 In the vicinity of dakar. — Admin . 593.in july when arriving from europe the itcz is most likely to be encountered in the vicinity of dakar In the vicinity of dakar.

Which wind systems converge on the itcz when it lies at the equator ?

Question 145-30 : Se trade winds and ne trade winds sw monsoon and nw monsoon sw monsoon and nw trade winds nw monsoon and sw trade winds

exemple 361 Se trade winds and ne trade winds — Admin . 596 Se trade winds and ne trade winds

From which direction do the trade winds blow in the southern hemisphere ?

Question 145-31 : Se ne sw n

Considering the route indicates from lisbon to freetown the harmattan is a . 290 ?

Question 145-32 : Ne wind affecting north west africa during november to april reducing visibility in rising dust sw monsoonal wind causing extensive areas of advection fog along the west african coast south of 15°n warm southerly dust bearing wind affecting the coast of north africa localised depression giving squally winds

exemple 369 Ne wind affecting north-west africa during november to april reducing visibility in rising dust. — Admin .way to remember .harmattan an backwards stands for november april and north africa Ne wind affecting north-west africa during november to april reducing visibility in rising dust.

In which month does the humid monsoon in india start ?

Question 145-33 : In june in october in december in march

exemple 373 In june. — Admin .humid monsoon begins in june in southern india to reach pakistan in july .the areas of the northern and central indian subcontinent heats up considerably during the hot summers which causes a low pressure area over the northern and central indian subcontinent to fill this void the moisture laden winds the se trade winds from the indian ocean rush in to the subcontinent the wind veers it will be the south west monsoon . 592.thunderstorms and showers of heavy rain can be expected In june.

The intertropical convergence zone itcz particularly affects ?

Question 145-34 : Western africa between 10°n and 20°n and the northern coasts of the arabian sea in july western africa at a latitude of 25°n in july the atlantic ocean between latitudes 10°n and 30°n depending on the time of year western africa where it is situated between the 10°n and 30°n parallels depending on the time of the year

exemple 377 Western africa between 10°n and 20°n and the northern coasts of the arabian sea in july. — Admin . 557 Western africa between 10°n and 20°n and the northern coasts of the arabian sea in july.

The chinook is a ?

Question 145-35 : Warm and dry wind that forms as air descends on the leeward side of the rocky mountains very cold wind with blowing snow downslope wind that occurs particularly at night as air cools along mountain slopes warm anabatic wind up the slopes of snowfields or glaciers

exemple 381 Warm and dry wind that forms as air descends on the leeward side of the rocky mountains. — Admin . 596a foehn wind is a warm dry wind on the lee side of a mountain range when the humid air goes over a mountain it loses its moisture and cools down a bit but when it descends down the slope the temperature rises because of the compression result is a strong warm and dry wind it develops all over the world such as the chinook rocky mountains over southern alberta in canada Warm and dry wind that forms as air descends on the leeward side of the rocky mountains.

A dry sand and dust laden north easterly wind that blows in winter over large ?

Question 145-36 : Harmattan scirocco pampero khamsin

The transition from sw to ne monsoon in india occurs in ?

Question 145-37 : September october november july august september december january february february march april

exemple 389 September, october, november. — Admin .transition occurs when the itcz intertropical convergence zone goes down to the southern hemisphere .the itcz will reach its southernmost position in january at 10°s of latitude close to bombay . 2537 September, october, november.

Which of the following statements concerning the intertropical convergence zone ?

Question 145-38 : There are frequent occurrences of cb it lies totally in the northern hemisphere in july and totally in the southern hemisphere in january it does not change its position over the oceans during the year it is an area of low pressure and low relative humidity

exemple 393 There are frequent occurrences of cb. — There are frequent occurrences of cb.

An easterly wave is a ?

Question 145-39 : Wave in a trade wind belt moving from east to west with severe convective activity in rear of its trough wave like disturbance in the monsoon regime of india moving from east to west with severe convective activity ahead of its trough small scale wave disturbance in the tropics moving from east to west with severe convective activity ahead of its trough disturbance in the higher levels associated with the equatorial easterly jet moving from east to west with severe convective activity in rear of its trough

exemple 397 Wave in a trade wind belt, moving from east to west, with severe convective activity in rear of its trough. — Admin .easterly waves are 'long waves' that occur within the trade wind belt start over north western africa and propagate toward the west in the lower tropospheric tradewind flow across the atlantic ocean .approximate location amplitude and wavelength of easterly waves . 495.at first an easterly wave has a small amplitude and produces mild rain showers powerful thunderstorms and the force of high altitude winds amplify the wave when atmospheric conditions are favourable several severe thunderstorms begin to form and eventually a tropical storm may develop . 638.thunderstorms are most likely to develop on the east side of the wave Wave in a trade wind belt, moving from east to west, with severe convective activity in rear of its trough.

The prevailing surface wind in the area of the west coast of africa north of ?

Question 145-40 : Sw monsoon in summer and ne tradewind in winter ne monsoon in winter and se tradewind in summer sw monsoon in winter and ne monsoon in summer ne tradewind in summer and se tradewind in winter

exemple 401 Sw monsoon in summer and ne tradewind in winter. — Admin .se trade winds and ne trade winds converge on the itcz . 2537.in july the itcz will be to the north of ethiopia the gulf of guinea will be under the influence the summer monsoon . 592.in january the itcz will be far south of the equator near the south of tanzania the gulf of guinea will be under the influence of the ne tradewind Sw monsoon in summer and ne tradewind in winter.

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