Considering the route indicates from Lisbon to Freetown the Harmattan is a 290 ?
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In which month does the humid monsoon in India start ?
The intertropical convergence zone ITCZ particularly affects ?
The chinook a Warm dry wind that forms as air descends on leeward side of rocky mountains. a foehn wind a warm dry wind on lee side of a mountain range when humid air goes over a mountain it loses its moisture cools down a bit but when it descends down slope temperature rises because of compression result a strong warm dry wind it develops all over world such as chinook (rocky mountains over southern alberta in canada). 
A dry sand and dust laden north easterly wind that blows in winter over large parts of north west africa known as a Warm dry wind that forms as air descends on leeward side of rocky mountains. a foehn wind a warm dry wind on lee side of a mountain range when humid air goes over a mountain it loses its moisture cools down a bit but when it descends down slope temperature rises because of compression result a strong warm dry wind it develops all over world such as chinook (rocky mountains over southern alberta in canada). 
The transition from sw to ne monsoon in india occurs in September october november. transition occurs when itcz (intertropical convergence zone) goes down to southern hemisphere the itcz will reach its southernmost position in january at 10°s of latitude close to bombay . 
Which of following statements concerning intertropical convergence zone true There are frequent occurrences of cb. transition occurs when itcz (intertropical convergence zone) goes down to southern hemisphere the itcz will reach its southernmost position in january at 10°s of latitude close to bombay . Question 143-8
An easterly wave a Wave in a trade wind belt moving from east to west with severe convective activity in rear of its trough. easterly waves are 'long wave that occur within trade wind belt start over north western africa propagate toward west in lower tropospheric tradewind flow across atlantic ocean approximate location amplitude wavelength of easterly waves at first an easterly wave has a small amplitude produces mild rain showers powerful thunderstorms the force of high altitude winds amplify wave when atmospheric conditions are favourable several severe thunderstorms begin to form eventually a tropical storm may develop thunderstorms are most likely to develop on east side of wave. Question 143-9
The prevailing surface wind in area of west coast of africa north of equator gulf of guinea a Sw monsoon in summer ne tradewind in winter. se trade winds ne trade winds converge on itcz in july itcz will be to north of ethiopia gulf of guinea will be under influence summer monsoon in january itcz will be far south of equator near south of tanzania gulf of guinea will be under influence of ne tradewind. Question 143-10
Which of following statements concerning trade winds correct They occur only in lower part of troposphere more pronounced over oceans. the trade winds are surface winds are stronger over oceans because there less surface friction than over land above surface friction layer wind up to tropopause will vary depending on exact location time of year as indicated on upper wind charts. Question 143-11
In central part of atlantic ocean between 10°n and 20°n prevailing winds are They occur only in lower part of troposphere more pronounced over oceans. take care ! this question exists with 10°s 20°s answer 'se trade wind the question asks the prevailing winds only between 10°n 20°n above atlantic ocean se trade winds may reach 5°n above atlantic ocean this the reason why they ask only between 10°n 20°n. Question 143-12
Along west coast of india prevailing winds are Sw monsoon in july a ne monsoon in january. se trade winds ne trade winds converge on itcz in july itcz will be to north of india this the summer monsoon in january itcz will be to south of india this the winter monsoon . Question 143-13
The bora a Cold catabatic wind with possibility of violent gusts. the bora comes from yugoslavian mountains to adriatic sea it a katabatic wind (meaning 'going downhil) which means that it cold dry often strong the air from bora wind comes from top of mountains it set in motion because of warmth below because wind moves down mountain it strengthens. Question 143-14
What the name of northerly cold and strong wind that sometimes blows over a certain part of europe Cold catabatic wind with possibility of violent gusts. mistral strong cold dry squally northerly wind that blows offshore with great frequency along mediterranean coast from northern spain to northern italy that particularly frequent in lower rhone valley in south eastern france blowing way out into golfe du lion the wind may persist several days is best developed when a depression forming in gulf of genoa to east of a ridge of high pressure it might also be a purely katabatic wind the airstream that feeds mistral commonly derived from polar air of maritime origin it most violent in winter spring its strenght increased the funneling effect of rhone valley the mistral might easily reach a speed of 75 kt over rhone delta compared with typical 40 kt experienced along coast. Question 143-15
What are characteristics of bora It a cold very strong wind that blows mainly in winter from a tableland downwards to adriatic. the bora comes from yugoslavian mountains to adriatic sea it a katabatic wind (meaning 'going downhil) which means that it cold dry often strong the air from bora wind comes from top of mountains it set in motion because of warmth below because wind moves down mountain it strengthens. Question 143-16
Which one of following statements correct concerning movement of itcz intertropical convergence zone in region of west africa It reaches its maximum northerly position of 5° 2 °n in july. in region of west africa (dakar) itcz reaches its maximum northerly position of 15° 20° n in july. Question 143-17
What the name of wind or air mass which gives to main part of india its greatest proportion of precipitation It reaches its maximum northerly position of 5° 2 °n in july. humid monsoon begins in june in southern india to reach pakistan in july the areas of northern central indian subcontinent heats up considerably during hot summers which causes a low pressure area over northern central indian subcontinent to fill this void moisture laden winds (the se trade winds) from indian ocean rush in to subcontinent wind veers it will be south west monsoon thunderstorms showers of heavy rain can be expected. Question 143-18
What the type intensity and seasonal variation of precipitation in equatorial region Rainshowers hail showers thunderstorms occur whole year but frequency highest during two periods april may october november. humid monsoon begins in june in southern india to reach pakistan in july the areas of northern central indian subcontinent heats up considerably during hot summers which causes a low pressure area over northern central indian subcontinent to fill this void moisture laden winds (the se trade winds) from indian ocean rush in to subcontinent wind veers it will be south west monsoon thunderstorms showers of heavy rain can be expected. Question 143-19
Assuming a generalised zonal system of world wind circulation se trade winds are applicable to zone 318 Rainshowers hail showers thunderstorms occur whole year but frequency highest during two periods april may october november. . Question 143-20
Assuming a generalised zonal system of world climatic and wind circulation zone 't' an area of 318 Subtropical high pressure systems. . Question 143-21
Considering melbourne c in july weather predominantly influenced the zone of 2538 Subtropical high pressure with occasional passage of fronts originating in adjacent zone of westerly waves. july the southern hemisphere winter the itcz well north southern hemisphere sub tropical high pressure over centre of australia the polar front just south of melbourne westerlies average latitude are 50°n 50°s. Question 143-22
Assuming a generalised zonal system of world climatic and wind circulation zone 'y' an area of 318 Travelling low pressure systems. travelling low pressure systems = travelling depressions. Question 143-23
Assuming a generalised zonal system of world wind circulation ne trade winds are applicable to zone 318 Travelling low pressure systems. . Question 143-24
Assuming a generalised zonal system of world climatic and wind circulation zone 'u' in area of 318 Travelling low pressure systems. . Question 143-25
The dotted line labelled 'y' represents 322 Mean position of intertropical convergence zone (itcz) during january. . Question 143-26
What weather conditions are most likely to affect an approach to dakar during july 323 Wet thundery due to proximity of intertropical convergence zone (itcz). in july itcz in vicinity of dakar frequent widespread thunderstorms are to be expected within area of itcz. Question 143-27
Weather conditions at bombay during early july are mainly influenced the 324 Wet thundery due to proximity of intertropical convergence zone (itcz). se trade winds ne trade winds converge on itcz in july itcz will be to north of bombay indian ocean will be affected se trade winds the areas of northern central indian subcontinent heats up considerably during hot summers which causes a low pressure area over northern central indian subcontinent to fill this void moisture laden winds (the se trade winds) from indian ocean rush in to subcontinent wind veers it will be sw monsoon . Question 143-28
Weather conditions at bombay during january are mainly influenced the 325 Wet thundery due to proximity of intertropical convergence zone (itcz). se trade winds ne trade winds converge on itcz in january itcz will be to south of bombay bombay will be affected ne trade winds it will be ne monsoon. Question 143-29
Which one of following local winds a foehn wind Wet thundery due to proximity of intertropical convergence zone (itcz). a foehn wind a warm dry wind on lee side of a mountain range when humid air goes over a mountain it loses its moisture cools down a bit but when it descends down slope temperature rises because of compression result a strong warm dry wind it develops all over world such as chinook (rocky mountains over southern alberta in canada) the bora comes from yugoslavian mountains to adriatic sea it a katabatic wind (meaning 'going downhil) which means that it cold dry often strong the air from bora wind comes from top of mountains it set in motion because of warmth below because wind moves down mountain it strengthens the bora develops during winter the word 'bora' means wind from mountain in greek (greece lies just below yugoslavia) the scirocco blows from southerly directions can carry dust sand which may reach europe it a hot subsequently humid southeast to southwest winds originating as hot dry desert air over northern africa flowing northward into southern mediterranean basin the harmattan a dry dusty west african trade wind it blows south from sahara into gulf of guinea between end of november the middle of march (winter) it a cold wind. Question 143-30
During approach to mumbai 19°n 73°e on west coast of india you are listening to atis on 15 july at 0700 lt which of following reports most likely 25 4kt 45 shra sct 5 bkn 25cb 25/24 q 6 nosig=. over west india (mumbai located over west coast of india) tropical revolving storms (cylcones) occur from may to november you can expect rain showers (shra) cb reduced visibility due to precipitation. Question 143-31
On west coast of india it can be said in general that wind blows For six month from north east for six month from south west. over west india (mumbai located over west coast of india) tropical revolving storms (cylcones) occur from may to november you can expect rain showers (shra) cb reduced visibility due to precipitation. Question 143-32
What name given to low level wind system between subtropical high pressure belt and equatorial trough of low pressure itcz For six month from north east for six month from south west. the subtropical high pressure belt located at 30°n/s itcz moves along year around equator ne se trade winds are low level wind systems located between subtropical high pressure belt the itcz. Question 143-33
What a favourable synoptic situation the development of a scirocco Low pressure area in western part of mediterranean sea. sirocco a mediterranean wind that comes from sahara reaches hurricane speeds in north africa southern europe it arises from a warm dry tropical airmass that pulled northward low pressure cells moving eastward across mediterranean sea with wind originating in arabian or sahara deserts the hotter drier continental air mixes with cooler wetter air of maritime cyclone the counter clockwise circulation of low propels mixed air across southern coasts of europe the sirocco causes dusty dry conditions along northern coast of africa storms in mediterranean sea cold wet weather in europe the sirocco's duration may be as short as half a day or may last several days many people attribute health problems to sirocco either because of heat dust along african coastal regions or because of cool dampness in europe the dust within sirocco winds can cause abrasion in mechanical devices penetrate buildings sirocco winds reach a peak in march in november when it very hot with a maximum speed of about 55 kt low pressure area in western part of mediterranean a favourable synoptic situation the development of a sirocco. Question 143-34
What weather conditions are indications of summer monsoon in india Thunderstorms showers of heavy rain. sirocco a mediterranean wind that comes from sahara reaches hurricane speeds in north africa southern europe it arises from a warm dry tropical airmass that pulled northward low pressure cells moving eastward across mediterranean sea with wind originating in arabian or sahara deserts the hotter drier continental air mixes with cooler wetter air of maritime cyclone the counter clockwise circulation of low propels mixed air across southern coasts of europe the sirocco causes dusty dry conditions along northern coast of africa storms in mediterranean sea cold wet weather in europe the sirocco's duration may be as short as half a day or may last several days many people attribute health problems to sirocco either because of heat dust along african coastal regions or because of cool dampness in europe the dust within sirocco winds can cause abrasion in mechanical devices penetrate buildings sirocco winds reach a peak in march in november when it very hot with a maximum speed of about 55 kt low pressure area in western part of mediterranean a favourable synoptic situation the development of a sirocco. Question 143-35
Where do trade winds blow Between 'horse latitude the doldrums. the doldrums a colloquial expression derived from historical maritime usage the area affected the intertropical convergence zone the trade winds blow between 'horse latitude the itcz. Question 143-36
Where are easterly waves found Between subtropical high pressure cells itcz. easterly waves are 'long wave that occur within trade wind belt start over north western africa propagate toward west in lower tropospheric tradewind flow across atlantic ocean approximate location amplitude wavelength of easterly waves at first an easterly wave has a small amplitude produces mild rain showers powerful thunderstorms the force of high altitude winds amplify wave when atmospheric conditions are favourable several severe thunderstorms begin to form eventually a tropical storm may develop thunderstorms are most likely to develop on east side of wave. Question 143-37
Which statement concerning scirocco correct It blows from southerly directions can carry dust sand which may reach europe. sirocco a mediterranean wind that comes from sahara reaches hurricane speeds in north africa southern europe it arises from a warm dry tropical airmass that pulled northward low pressure cells moving eastward across mediterranean sea with wind originating in arabian or sahara deserts the hotter drier continental air mixes with cooler wetter air of maritime cyclone the counter clockwise circulation of low propels mixed air across southern coasts of europe the sirocco causes dusty dry conditions along northern coast of africa storms in mediterranean sea cold wet weather in europe the sirocco's duration may be as short as half a day or may last several days many people attribute health problems to sirocco either because of heat dust along african coastal regions or because of cool dampness in europe the dust within sirocco winds can cause abrasion in mechanical devices penetrate buildings sirocco winds reach a peak in march in november when it very hot with a maximum speed of about 55 kt low pressure area in western part of mediterranean a favourable synoptic situation the development of a sirocco. Question 143-38
What winds and air mass characteristics are mainly associated with winter monsoon in monsoon regions of indian sub continent North easterly winds bringing dry hazy air. se trade winds ne trade winds converge on itcz in january itcz will be to south of india this the winter monsoon north easterly winds will bring dry hazy air from northern central indian subcontinent. Question 143-39
The dotted line designated 'z' represents 330 Mean position of intertropical convergence zone (itcz) during july. . Question 143-40
Which true of nairobi kenya 331 There are two wet seasons. .
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