On a Significant Weather Chart we see the following for the area where a VFR flight will take place BKN CU SC 100 / 023If the flight is planned at FL 85 we can estimate ?
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On the Significant Weather Chart we see the following indications SCT CU100/060The forecast charts for FL 050 and FL 100 both indicate a wind from 320°/15 kt In flight at FL 055 over an area of ?
Refer to the following TAF message LFxx 180800Z 1809/1818 22020KT 6000 SCT015 SCT080 BEMCG 1812/1814 24025KT 2000 RA BKN009 OVC070=At 1400 UTC the lowest cloud base will be ?
The taf weather messages are The instability of air mass between surface the top of cumulus clouds. at 1400 utc forecast cloud bases are becmg 1214 24025kt 2000 ra bkn009 ovc070 bkn009 broken 900 ft agl ovc070 overcast 7000 ft agl the lowest cloud base therefore at 900 feet above groud level. 
The term prob as used in a taf indicates probability in percentage of phenomena described during a specific period the numerical values immediately following term prob are The instability of air mass between surface the top of cumulus clouds. icao annex 3 meteorological service international air navigation the probability of occurrence of an alternative value of a forecast element or elements should be indicated as necessary use of abbreviation 'prob' followed the probability in tens of per cent the time period during which alternative value(s) (are) expected to apply the probability information should be placed after element or elements forecast be followed the alternative value of element or elements the probability of a forecast of temporary fluctuations in meteorological conditions should be indicated as necessary use of abbreviation 'prob' followed the probability in tens of per cent placed before change indicator 'tempo' associated time group a probability of an alternative value or change of less than 30 per cent should not be considered sufficiently significant to be indicated a probability of an alternative value or change of 50 per cent or more aviation purposes should not be considered a probability but instead should be indicated as necessary use of change indicators 'becmg' or 'tempo' therefore numerical values immediately following term prob are 30 or 40 only. 
What type of precipitation might occur at 1700 utc mkjp 160430z 160606 36010kt 9999 few025 becmg 1315 14020g34kt few015cb sct025 prob30 tempo 1720 6000 +shra sct010 bkn015cb becmg 2224 34010kt few025= The instability of air mass between surface the top of cumulus clouds. icao annex 3 meteorological service international air navigation the probability of occurrence of an alternative value of a forecast element or elements should be indicated as necessary use of abbreviation 'prob' followed the probability in tens of per cent the time period during which alternative value(s) (are) expected to apply the probability information should be placed after element or elements forecast be followed the alternative value of element or elements the probability of a forecast of temporary fluctuations in meteorological conditions should be indicated as necessary use of abbreviation 'prob' followed the probability in tens of per cent placed before change indicator 'tempo' associated time group a probability of an alternative value or change of less than 30 per cent should not be considered sufficiently significant to be indicated a probability of an alternative value or change of 50 per cent or more aviation purposes should not be considered a probability but instead should be indicated as necessary use of change indicators 'becmg' or 'tempo' therefore numerical values immediately following term prob are 30 or 40 only. 
What the lowest possible cloudbase forecast 2300 utc eddf 272200z 2806/2824 vrb05kt4000 br sct005 ovc013 becmg 2813/2814 9000 shra ovc015 prob40 tempo 2814/2816 vrb15g25kt 1600 tsra ovc010cb becmg 2816/2818 26010kt bkn030 becmg 2821/2822 cavok= The instability of air mass between surface the top of cumulus clouds. becmg 2122 cavok lowest possible cloudbase forecast 2300 utc 5000 ft in cavok conditions there are no clouds below 5000ft cavok definition is 1 no cloud below 5000 ft above airfield level (or minimum sector altitude whichever higher) 2 no cb or tcu at any height 3 visibility 10 km or more 4 no significant weather. Question 152-8
What the meaning of expression 'few' The instability of air mass between surface the top of cumulus clouds. becmg 2122 cavok lowest possible cloudbase forecast 2300 utc 5000 ft in cavok conditions there are no clouds below 5000ft cavok definition is 1 no cloud below 5000 ft above airfield level (or minimum sector altitude whichever higher) 2 no cb or tcu at any height 3 visibility 10 km or more 4 no significant weather. Question 152-9
Which of following layers of fog above land coded as mifg A layer of 5 feet deep. icao annex 3 meteorological service international air navigation 4 4 2 6 recommendation in local routine special reports in metar speci following characteristics of present weather phenomena as necessary should be reported using their respective abbreviations relevant criteria as appropriate shallow mi less than 2 m (6 ft) above ground level. Question 152-10
Which of following phenomena has to be mentioned in a sigmet A layer of 5 feet deep. icao annexe 3 (met services) sigmet or significant meteorological information a weather advisory that contains meteorological information concerning safety of all aircraft the following are examples of weather phenomena that may be described in a sigmet thunderstorms cyclones (tropical revolving storms) severe turbulence severe icing severe mountain waves dust or sand storms volcanic ash. Question 152-11
Which of following phenomena has to be mentioned in a sigmet A layer of 5 feet deep. icao annexe 3 (met services) sigmet or significant meteorological information a weather advisory that contains meteorological information concerning safety of all aircraft the following are examples of weather phenomena that may be described in a sigmet thunderstorms cyclones (tropical revolving storms) severe turbulence severe icing severe mountain waves dust or sand storms volcanic ash. Question 152-12
On an upper wind and temperature chart The pressure constant all over chart. icao annexe 3 (met services) sigmet or significant meteorological information a weather advisory that contains meteorological information concerning safety of all aircraft the following are examples of weather phenomena that may be described in a sigmet thunderstorms cyclones (tropical revolving storms) severe turbulence severe icing severe mountain waves dust or sand storms volcanic ash. Question 152-13
What the most likely forecast lowest cloud base that can be expected during an approach to madrid into 2300 utc taf lemd 281200z 281812 13005kt cavok tempo 1821 8000 sct020 sct030 becmg 2123 21005kt 9999 sct015 bkn080 prob40 tempo 2306 6000 sct008 The pressure constant all over chart. the tempo group used any conditions in wind visibility weather or sky condition which are expected to last generally less than an hour at a time (occasional) are expected to occur during less than half time period the tempo indicator followed a four digit group giving beginning hour ending hour of time period during which temporary conditions are expected only changing forecast meteorological conditions are included in tempo groups the omitted conditions are carried over from previous time group becmg 2123 21005kt 9999 sct015 bkn080 prob40 tempo 2306 6000 sct008 sct008 concerns less than half of period so most likely conditions to expect will be cloud base to 1500 feet. Question 152-14
What the lowest visibility forecast bangkok at eta 1400 utc taf vtbd 271800z 2800/2824 vrb05kt 1200 br tempo 2800/2802 4000 becmg 2802/2805 9999 sct015 bkn100 tempo 2811/2818 04010g20kt 5000 tsra sct009 bkn014 bkn018cb becmg 2820/2824 6000= The pressure constant all over chart. at eta 1400 utc taf indicates ' tempo 2811/2818 04010g20kt 5000 tsra sct009 bkn014 bkn018cb ' the tempo group used any conditions in wind visibility weather or sky condition which are expected to last generally less than an hour at a time (occasional) are expected to occur during less than half time period it means that between 1100 utc 1800 utc visibility could come down to 5000 m this the lowest visibility forecast arrival at 1400 utc. Question 152-15
What the lowest probable cloud base forecast eta 1700 utc at kingston taf mkjp 160000z 1606/1706 36010kt 9999 few025 becmg 1613/1615 14020g34kt few015cb sct025 prob30 tempo 1615/1620 6000 +shra sct010 bkn015cb becmg 1623/1701 34010kt few025= The pressure constant all over chart. the lowest probable cloud base forecast eta 1700 utc at kingston 1000 ft 'becmg 1613/1615' changes lowest cloud base to 1500 ft (1 to 2 oktas few015cb) but there a 30% probability (prob30 tempo) that there could be 3 to 4 oktas at 1000 ft (sct010). Question 152-16
What the lowest cloud base forecast arrival at geneva eta 1200 utc taf lsgg 020900z 021019 18007kt 9999 sct020 bkn100 becmg 1114 8000 ra sct010 ovc020 prob30 tempo 1018 vrb10g25kt tsra sct005 bkn015cb= The pressure constant all over chart. taf lsgg 020900z 021019 18007kt 9999 sct020 bkn100 becmg 1114 8000 ra sct010 ovc020 prob30 tempo 1018 vrb10g25kt tsra sct005 bkn015cb= the tempo group used any conditions in wind visibility weather or sky condition which are expected to last generally less than an hour at a time (occasional) are expected to occur during less than half time period at 1200 utc lowest cloud base forecast 500 ft (tempo between 10h00 to 18h00 utc) for information a cloud base few or sct a cloud ceiling bkn or ovc (coverage of one half of sky). Question 152-17
What the height of lowest cloud forecast bangkok at eta 1400 utc taf vtbd 271800z 280024 vrb05kt 1200 br tempo 2800/2802 4000 becmg 2802/2805 9999 nsw sct015 bkn100 tempo 2811/2818 04010g20kt 4500 tsra sct009 bkn014 bkn018cb becmg 2820/2824 4000= The pressure constant all over chart. at 1400 utc forecast cloud bases are tempo 1118 04010g20kt 5000 tsra sct009 bkn014 bkn018cb becmg 2024 6000 sct009 scatered 900 ft agl bkn014 broken 1400 ft agl bkn018 broken 1800 ft agl the lowest cloud base therefore at 900 feet above ground level. Question 152-18
Why can following metar not be abbreviated to cavok dllo 121550z 31018g30kt 9999 few060 bkn070 14/08 q1016 tempo 4000 ts= aerodrome elevation 1000 ft msa sector 000 190° 5800 ft sector 190 360° 7300 ft Because cloud base below highest minimum sector altitude. icao annex 3 amendment 74 1 no cloud below 5000 ft above airfield level (or minimum sector altitude whichever higher ) 2 no cb or tcu at any height 3 visibility 10 km or more 4 no significant weather note highest minimum sector altitude defined in icao pans?ops part 1 definitions as lowest altitude which may be used under emergency conditions which will provide a minimum clearance of 300 metres (1000 ft) above all objects located in an area contained within a sector of a circle of 46 km (25 nautical miles) radius centred on a radio aid to navigation. Question 152-19
What does code taf amd mean Because cloud base below highest minimum sector altitude. the report type header will always appear as first element in taf forecast there are two types of taf reports a routine forecast taf an amended forecast taf amd an amended taf issued when current taf no longer adequately describes ongoing weather or forecaster feels taf not representative of current or expected weather. Question 152-20
What does code r24r/p1500 mean Rvr rwy 24 right above 5 metres. the report type header will always appear as first element in taf forecast there are two types of taf reports a routine forecast taf an amended forecast taf amd an amended taf issued when current taf no longer adequately describes ongoing weather or forecaster feels taf not representative of current or expected weather. Question 152-21
What conditions are necessary vertical visibility to be reported Whenever sky obscured fog or heavy precipitation the height of cloud base cannot be measured. the report type header will always appear as first element in taf forecast there are two types of taf reports a routine forecast taf an amended forecast taf amd an amended taf issued when current taf no longer adequately describes ongoing weather or forecaster feels taf not representative of current or expected weather. Question 152-22
The term cavok used when weather conditions are Whenever sky obscured fog or heavy precipitation the height of cloud base cannot be measured. icao annex 3 amendment 74 when following conditions occur simultaneously at time of observation we can use abbreviation of c eiling a nd v isibility ok (cavok ) 1 no cloud below 5000 ft above airfield level (or minimum sector altitude whichever higher) 2 no cb or tcu at any height 3 visibility 10 km or more 4 no significant weather visibility 10 km or more abbreviated in 9999 nsc means 'no significant clou nsw means 'no significant weather'. Question 152-23
How a ceiling defined Height above ground or water of lowest layer of cloud below 2 ft covering more than half of sky. icao annex 2 rules of the air ceiling the height above ground or water of base of lowest layer of cloud below 6 000 metres (20 000 feet) covering more than half sky. Question 152-24
In metar code abbreviation vc indicates Present weather between approximately 8 6 km of aerodrome reference point. icao annex 3 meteorological service vicinity between approximately 8 16 km of aerodrome reference point used only in metar speci. Question 152-25
In metar code abbreviation vcbldu means Blowing dust in vicinity. icao annex 3 meteorological service vicinity between approximately 8 16 km of aerodrome reference point used only in metar speci. Question 152-26
Which of following statements an interpretation of metar 00000kt 0200 r14/0800u r16/p1500u fzfg vv001 m03/m03 q1022 becmg 0800 = Rvr runway 4 8 metres vertical visibility feet calm visibility improving to 8 metres in next 2 hours. 00000kt surface wind direction speed calm 0200 visibility 200 metres r14/0800u runway 14 visibility 800 meters runway visual range value shows an upward tendency annex 3 if runway visual range values during 10 minute period have shown a distinct tendency such that mean during first 5 minutes varies 100 m or more from mean during second 5 minutes of period this should be indicated when variation of runway visual range values shows an upward or downward tendency this should be indicated the abbreviation 'u' or ' respectively in circumstances when actual fluctuations during 10 minute period show no distinct tendency this should be indicated using abbreviation 'n' r16/p1500u runway 16 visibility 1500 m (p runway visual range above maximum value that can be determined the system in use) runway visual range value shows an upward tendency fzfg freezing fog m03/m03 temperature 3°c dew point 3°c q1022 qnh 1022 hpa becmg 0800 visibility improving to 800 metres in next 2 hours. Question 152-27
Which of four answers a correct interpretation of data from following metar lszh 050820z 16003kt 0400 r14/p1500 r16/1000 fzfg vv003 m02/m02 q1026 becmg 2000 br = Visibility 4 m rvr runway 6 m with no distinct tendency dew point 2°c freezing fog. metar geneva issued on 5th of month at 08h20 utc 16003kt surface wind direction 160° speed 3 kt 0400 visibility 400 metres r14/p1500 runway 14 visibility 1500 m (p runway visual range above maximum value that can be determined the system in use) r16/1000 runway 16 visibility 1000 m fzfg freezing fog vv003 vertical visibility 300 feet m02/m02 temperature 2°c dew point 2°c q1026 qnh 1026 hpa becmg 2000 br = visibility improving to 2000 metres in next 2 hours with mist (br reported when visibility at least 1000 m but not more than 5000 m). Question 152-28
Which of these four metar reports suggests that a thunderstorm likely in next few hours 2 35 z 2 5kt 9999 sct 4 cb sct 26/ 8 q 6 tempo 24 8g3 kt ts =. ts thunder storm. Question 152-29
Which of following weather reports could be in accordance with regulations abbreviated to 'cavok' msa minus airport elevation equals lszb 10000 ft lszh 8000 ft lsgg 12000 ft lfsb 6000 ft Lszb 28 2kt 9999 ovc 6/ 2 q 2 becmg 5 ra=. icao annex 3 amendment 74 when following conditions occur simultaneously at time of observation 1 no cloud below 5000 ft above airfield level (or minimum sector altitude whichever higher ) 2 no cb or tcu at any height 3 visibility 10 km or more 4 no significant weather lszh has a visibility less than 10 km lfsb has cloud below minimum sector altitude (msa 6000 ft cloud base 5000 ft) lsgg has cloud below minimum sector altitude (msa 12000 ft cloud base 10000 ft) note highest minimum sector altitude defined in icao pans?ops part 1 definitions as lowest altitude which may be used under emergency conditions which will provide a minimum clearance of 300 metres (1000 ft) above all objects located in an area contained within a sector of a circle of 46 km (25 nautical miles) radius centred on a radio aid to navigation. Question 152-30
Which of following weather reports could be in accordance with regulations abbreviated to 'cavok' 27 9g37kt 9999 bkn 5 8/ 4 q 6 nosig =. icao annex 3 amendment 74 when following conditions occur simultaneously at time of observation 1 no cloud below 5000 ft above airfield level (or minimum sector altitude whichever higher ) 2 no cb or tcu at any height 3 visibility 10 km or more 4 no significant weather. Question 152-31
Which of following statements correct Fg reported only when visibility reduced water droplets or ice crystals to less than m. icao annex 3 amendment 74 when following conditions occur simultaneously at time of observation 1 no cloud below 5000 ft above airfield level (or minimum sector altitude whichever higher ) 2 no cb or tcu at any height 3 visibility 10 km or more 4 no significant weather. Question 152-32
Flight from bordeaux to amsterdam eta 2100 utc what lowest cloud base forecast arrival at amsterdam taf eham 281500z 281601 14010kt 6000 ra sct025 becmg 1618 12015g25kt sct008 bkn013 tempo 1823 3000 ra bkn005 ovc010 becmg 2301 25020kt 8000 nsw bkn020 = Fg reported only when visibility reduced water droplets or ice crystals to less than m. tempo 18h to 23h broken 005 = 500ft. Question 152-33
What the lowest cloud base that can be expected from forecast 1500 utc kchs 280430z 280606 vrb05kt 4000 br sct005 ovc013 prob40 shra becmg 1314 9000 shra ovc015 prob40 tempo 1416 vrb15g25kt 1600 tsra ovc010cb becmg 1618 26010kt bkn030 becmg 2122 cavok Fg reported only when visibility reduced water droplets or ice crystals to less than m. tempo 18h to 23h broken 005 = 500ft. Question 152-34
What the symbol hail on a significant weather chart 373 Fg reported only when visibility reduced water droplets or ice crystals to less than m. icao annex 3 meteorological service international air navigation . Question 152-35
To which type of does following text belong mbst apch rwy26 rep at 1510 b747 30kt aspeedl 2nm fna= Fg reported only when visibility reduced water droplets or ice crystals to less than m. icao annex 3 meteorological service international air navigation . Question 152-36
What determined a transmissometer Visibility runway visual range. icao annex 3 meteorological service international air navigation . Question 152-37
Which of following constant pressure charts would be most relevant planning a flight at fl330 Visibility runway visual range. Cqb15 july 2011 there a few questions at exam that take information directly from that table below write these down on a sticky have them on wall beside you 1013 hpa = msl 850 hpa = fl50 700 hpa = fl100 500 hpa = fl180 300 hpa = fl300 200 hpa = fl390 any others you can interpolate between these figure it out the decrease of 1hpa/27ft only applicable at lower levels of troposphere as you go up air pressure decreases change of height per 1 hpa increases (at msl 1hpa/27ft at fl180 it's 50ft/hpa at fl390 it's 105ft/hpa). Question 152-38
A cold air pool can be best identified means of The isohypses on an upper air chart. isohypses (contour lines) are drawn on a constant pressure chart therefore they indicate true altitude of a pressure level on an upper air chart as it includes temperature wind indications you can easily identify a cold air pool (you will have an area with light or no wind low temperature). Question 152-39
What wind direction will occur over sea at point 'f' 374 The isohypses on an upper air chart. we know that wind blows parallel to isobars we can see a warm front (c) a cold front (a) a warm sector (b) a cold occlusion (d) note it's a cold occlusion since line of occlusion approximately along same line as cold front with cold occlusion the warm sector it's a depression located in northern hemisphere over sea angle between wind direction isobars changes 10° (value to be used in examinations) we can assume that wind direction at point 'f' south. Question 152-40
What are normal and official sources of meteorological information an aircraft in flight Volmet broadcast atis all ats units. we know that wind blows parallel to isobars we can see a warm front (c) a cold front (a) a warm sector (b) a cold occlusion (d) note it's a cold occlusion since line of occlusion approximately along same line as cold front with cold occlusion the warm sector it's a depression located in northern hemisphere over sea angle between wind direction isobars changes 10° (value to be used in examinations) we can assume that wind direction at point 'f' south.
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