SIGMET - Dgca question bank for pilots

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#1. Given the following METAR: EDDM 250850Z 33005KT 2000 R26R/P1500N R26L/1500N BR SCT002 OVC003 05/05 Q1025 NOSIGGiven the following METAR: EDDM 250850Z 33005KT 2000 R26R/P1500N R26L/1500N BR SCT002 OVC003 05/05 Q1025 NOSIG

Runway 26R and runway 26L have the same RVR

RVR on runway 26R is increasing

Visibility is reduced by water droplets

There is a distinct change in RVR observed

#2. What does the abbreviation “nosig” mean?

Not signed by the meteorologist

No significant changes

No report received

No weather related problems

#3. Refer to TAF below. EGBB 261812 28015G25KT 9999 SCT025 TEMPO 1822 29018G35KT 5000 SHRASN BKN010CB PROB30 TEMPO 1821 1500 TSGR BKN008CB BECMG 2124 26010KT From the TAF above you can assume that visibility at 2055Z in Birmingham (EGBB) will be:

more than 10 km

not less than 1,5 km but could be in excess of 10 km

a maximum 5 km

a minimum of 1,5 km and a maximum of 5 km

#4. Refer to the following TAF for Zurich. LSZH 261019 20018G30KT 9999 -RA SCT050 BKN080 TEMPO 23012KT 6000 -DZ BKN015 BKN030 BECMG 1518 23020G35KT 4000 RA OVC010= The lowest visibility forecast at ETA Zurich 1430 UTC is:

6 km.

6 NM.

4 km.

10 km.

#5. Which of the following statements is an interpretation of the SIGMET? SIGMET VALID 121420/121820 embd ts obs and fcst in w part of athinai fir / mov e / intst nc =

Athens Airport is closed due to thunderstorms. The thunderstorm zone should be east of Athens by 1820 UTC

The thunderstorms in the Athens FIR are increasing in intensity, but are stationary above the western part of the Athens FIR

Thunderstorms must be expected in the western part of the Athens FIR. The thunderstorm zone is moving east. Intensity is constant

Thunderstorms have formed in the eastern part of the Athens FIR and are slowly moving west

#6. In the weather briefing room during the pre-flight phase of a passenger flight from Zurich to Rome, you examine the following weather reports of pressing importance at the time: EINN SHANNON 2808 sigmet 2 valid 0800/1100 loc sev turb fcst einn fir blw fl 050 south of 53n wkn = LIMM MILANO 2809 sigmet 2 valid 0900/1500 mod sev cat btn fl 250 and fl 430 fcst limm fir stnr nc = EGLL LONDON 2808 sigmet nr01 valid 0800/1200 for london fir isol cb embd in lyr cloud fcst tops fl 300 btn 52n and 54n east of 002e sev ice sev turb ts also fcst mov e wkn = Which decision is correct?

Because of the expected turbulence you select a flight level below FL 250.

You show no further interest in these reports, since they do not concern the route to be flown

Owing to these reports and taking into account the presence of heavy thunderstorms at planned FL 310 you select a higher flight level (FL 370).

You cancel the flight since the expected dangerous weather conditions along the route would demand too much of the passengers.

#7. Refer to the TAF for Bordeaux airport. FCFR31 281400 LFBD 1524 26015KT 9999 SHRA BKN020 TEMPO 1620 26020G30KT 8000 +SHRA BKN015CB PROB30 TSRA = Flight Lisbon to Bordeaux, ETA 1800 UTC. What type of precipitation is forecast on the approach to Bordeaux ?

Continuous moderate rain

Light drizzle and fog

Moderate snow showers

Heavy rain showers

#8. What does the term TREND signify?

It is a flight forecast, issued by the meteorological station several times daily

It is a brief landing forecast added to the actual weather report

It is the actual weather report at an aerodrome and is generally issued at half-hourly intervals

It is a warning of dangerous meteorological conditions

#9. Compare the following TAF and VOLMET reports for Nice: TAF 240716 VRB02KT CAVOK = 0920Z 13012KT 8000 SCT040CB BKN100 20/18 Q1015 TEMPO TS = What can be concluded from the differences between the two reports ?

That the weather at Nice is clearly more volatile than the TAF could have predicted earlier in the morning

That the weather conditions at 0920 were actually predicted in the TAF

That the weather in Nice after 0920 is also likely to be as predicted in the TAF

That the VOLMET speaker has got his locations mixed up, because there is no way the latest VOLMET report could be so different from the TAF

#10. Which statement is true?

QNH can be 1013.25 only for a station at MSL

QNH can be only lower than 1013.25 hPa

QNH can not be 1013.25 hPa

QNH is lower than 1013.25 hPa at any time

#11. Which of the following statements is an interpretation of the SIGMET? LSAW SWITZERLAND 0307 SIGMET 2 VALID 030700/031100 LSSW mod to sev cat fcst north of alps btn fl 260 and fl 380 / stnr / intsf =

Severe turbulence observed below FL 260 north of the Alps. Pilots advised to cross this area above FL 380

Moderate to strong clear air turbulence of constant intensity to be expected north of the Alps

Moderate to severe clear air turbulence to be expected north of the Alps. Intensity increasing. Danger zone between FL260 and FL 380

Zone of moderate to severe turbulence moving towards the area north of the Alps. Intensity increasing. Pilots advised to cross this area above FL 260

#12. Refer to the TAF for Amsterdam airport: FCNL31 281500 EHAM 281601 14010KT 6000 -RA SCT025 BECMG 1618 12015G25KT SCT008 BKN013 TEMPO 1823 3000 RA BKN005 OVC010 BECMG 2301 25020KT 8000 NSW BKN020 = Flight from Bordeaux to Amsterdam, ETA 2100 UTC. What is the minimum visibility forecast for ETA Amsterdam ?

5 NM

6 km

3 km

5 km

#13. At a weather station, at 0600 UTC, the air temperature and dew point are respectively: T = – 0,5°C,Td = -1,5°C. In the METAR message transmitted by this station, the “temperature group” will be:

M00/M01

M01/M02

00/M01

M01/M01

#14. Refer to the TAF for Zurich Airport TAF LSZH 250716 00000KT 0100 FG VV001 BECMG 0810 0800 VV002 BECMG 1012 23005KT 2500 BKN005 TEMPO 1316 6000 SCT007 = Which of these statements best describes the weather that can be expected at 1200 UTC?

Meteorological visibility 6 kilometres, cloudbase 500 feet, windspeed 5 knots

Meteorological visibility 2,5 kilometres, cloudbase 500 feet, windspeed 5 knots

Meteorological visibility 800 metres, wind from 230°, cloudbase 500 feet

Meteorological visibility 800 metres, vertical visibility 200 feet, calm

#15. In which of the following METAR reports, is the probability of fog formation in the coming night the highest?

1850Z 21003KT 8000 SCT250 12/m08 Q1028 NOSIG =

1850Z 06018G30KT 5000 OVC010 04/01 Q1024 NOSIG =

1850Z 25010KT 4000 RA BKN012 OVC030 12/10 Q1006 TEMPO 1500 =

1850Z 15003KT 6000 SCT120 05/04 Q1032 BECMG 1600 =

#16. In which of the following circumstances is a SIGMET issued ?

Marked mountain waves.

Fog or a thunderstorm at an aerodrome.

Clear ice on the runways of an aerodrome.

A sudden change in the weather conditions contained in the METAR.

SIGMET, or Significant Meteorological Information, is a severe weather advisory that contains meteorological information concerning the safety of all aircraft. Compared to AIRMETs, SIGMETs cover more severe weather, hence atc should issue sigmet

#17. What is the wind speed given in a METAR report based on?

The average speed of the previous 30 minutes

The strongest gust in the previous hour

The actual speed at the time of recording

The average speed of the previous 10 minutes

#18. Which of the following weather reports could be, in accordance with the regulations, abbreviated to “CAVOK”? (MSA above ground : LSZB 10000 FT, LSZH 8000 FT, LSGG 12000 FT, LFSB 6000 FT)

LFSB 24008KT 9999 SCT050 18/11 Q1017 RERA NOSIG =

LSZH VRB02KT 9000 BKN080 21/14 Q1022 NOSIG =

LSGG 22006KT 9999 BKN090 17/15 Q1008 RERA NOSIG =

LSZB 28012KT 9999 OVC100 16/12 Q1012 BECMG 5000 =

#19. What does the term METAR signify?

A METAR is a flight forecast, issued by the meteorological station several times daily.

A METAR is a landing forecast added to the actual weather report as a brief prognostic report

A METAR signifies the actual weather report at an aerodrome and is generally issued in half-hourly intervals

A METAR is a warning of dangerous meteorological conditions within a FIR.

#20. Does the following report make sense? LSZH VRB02KT 5000 MIFG 02/02 Q1015 NOSIG

The report would never be seen, because shallow fog is not reported when the meteorological visibility is more than 2km

The report is nonsense, because it is impossible to observe a meteorological visibility of 5 km if shallow fog is reported

The report is not possible, because, with a temperature of 2°C and a dew point of 2°C there must be uniform fog

The report is possible, because shallow fog is defined as a thin layer of fog below eye level

#21. Runway Visual Range (RVR) is

measured with ceilometers alongside the runway

usually better than meteorological visibility

reported when meteorological visibility is less than 2000m

reported in TAF and METAR

#22. When will the surface wind in a METAR record a gust factor?

With gusts of at least 25 knots

With gusts of at least 35 knots

When gusts are at least 10 knots above the mean wind speed

When gusts are at least 15 knots above the mean wind speed

#23. What does the term SIGMET signify?

A SIGMET is a brief landing forecast added to the actual weather report

A SIGMET is an actual weather report at an aerodrome and is generally issued at halfhourly intervals

A SIGMET is a warning of dangerous meteorological conditions

A SIGMET is a flight forecast, issued by the meteorological station several times daily

#24. In which weather report would you expect to find information about icing conditions on the runway?

GAFOR

TAF

METAR

SIGMET

#25. A SPECI is

an aviation routine weather report

a warning for special weather phenomena

a forecast for special weather phenomena

an aviation selected special weather report

#26. Refer to the following TAF for Zurich. LSZH 061019 20018G30KT 9999 -RA SCT050 BKN080 TEMPO 23012KT 6000 -DZ BKN015 BKN030 BECMG 1518 23020G35KT 4000 RA OVC010= The lowest cloud base forecast at ETA Zurich (1200 UTC) is:

1000 FT.

1500 m.

5000 FT.

1500 FT.

#27. Refer to the TAF for Bordeaux airport. FCFR31 281400 LFBD 1524 26015KT 9999 SHRA BKN020 TEMPO 1620 26020G30KT 8000 +SHRA BKN015CB PROB30 TSRA = Flight Lisbon to Bordeaux, ETA 1800 UTC. At ETA Bordeaux what is the lowest quoted visibility forecast?

10 or more km

8 km

8 NM

10 NM

#28. Which of the following weather reports could be, in accordance with the regulations, abbreviated to “CAVOK”?

26012KT 8000 SHRA BKN025 16/12 Q1018 NOSIG =

27019G37KT 9999 BKN050 18/14 Q1016 NOSIG =

34004KT 7000 MIFG SCT260 09/08 Q1029 BECMG 1600 =

00000KT 0100 FG VV001 11/11 Q1025 BECMG 0500 =

#29. Which of the following weather reports is a warning of conditions that could be potentially hazardous to aircraft in flight ?

SIGMET.

ATIS.

SPECI.

TAF.

#30. Refer to the TAF for Amsterdam airport. FCNL31 281500 EHAM 281601 14010KT 6000 -RA SCT025 BECMG 1618 12015G25KT SCT008 BKN013 TEMPO 1823 3000 RA BKN005 OVC010 BECMG 2301 25020KT 8000 NSW BKN020 = Flight from Bordeaux to Amsterdam, ETA 2100 UTC. At ETA Amsterdam what surface wind is forecast ?

120° / 15 kt gusts 25 kt

140° / 10 kt

300° / 15 kt maximum wind 25 kt

250° / 20 kt

#31. Within a short interval, several flight crews report that they have experienced strong clear air turbulence in certain airspace. What is the consequence of these reports?

The airspace in question, will be temporarily closed

The competent aviation weather office will issue a SPECI

The competent aviation weather office will issue a storm warning

The competent aviation weather office will issue a SIGMET

#32. In Zurich during a summer day the following weather observations were taken: 160450Z 23015KT 3000 +RA SCT008 SCT020 OVC030 13/12 Q1010 NOSIG = 160650Z 25008KT 6000 SCT040 BKN090 18/14 Q1010 RERA NOSIG = 160850Z 25006KT 8000 SCT040 SCT100 19/15 Q1009 NOSIG = 161050Z 24008KT 9999 SCT040 SCT100 21/15 Q1008 NOSIG = 161250Z 23012KT CAVOK 23/16 Q1005 NOSIG = 161450Z 23016KT 9999 SCT040 BKN090 24/17 Q1003 BECMG 25020G40KT TS = 161650Z 24018G35KT 3000 +TSRA SCT006 BKN015CB 18/16 Q1002 NOSIG = 161850Z 28012KT 9999 SCT030 SCT100 13/11 Q1005 NOSIG = What do you conclude based on these observations?

A cold front passed the station early in the morning and a warm front during late afternoon

A trough line passed the station early in the morning and a warm front during late afternoon

Storm clouds due to warm air came close to and grazed the station

A warm front passed the station early in the morning and a cold front during late afternoon

#33. Refer to the following TAF extract: BECMG 1821 2000 BKN004 PROB30 BECMG 2124 0500 FG VV001 What does the abbreviation “PROB30” mean?

Change expected in less than 30 minutes.

Probability of 30%.

Conditions will last for at least 30 minutes

The cloud ceiling should lift to 3000 FT

#34. Refer to the following TAF extract: BECMG 1821 2000 BKN004 PROB30 BECMG 2124 0500 FG VV001 What visibility is forecast for 2400 UTC?

500 m.

2000 m.

Between 500 m and 2000 m.

Between 0 m and 1000 m.

#35. What is a trend forecast?

An aerodrome forecast valid for 9 hours

A route forecast valid for 24 hours

A routine report

A landing forecast appended to METAR/SPECI, valid for 2 Hours

#36. SIGMET information is issued as a warning for significant weather to

VFR operations only

heavy aircraft only

all aircraft

light aircraft only

#37. Which of the following phenomena can produce a risk of aquaplaning?

+RA

BCFG

#38. In which of the following 1850 UTC METAR reports, is the probability of fog formation, in the coming night, the highest?

00000KT 9999 SCT300 21/01 Q1032 NOSIG =

VRB01KT 8000 SCT250 11/10 Q1028 BECMG 3000 =

22004KT 6000 -RA SCT012 OVC030 17/14 Q1009 NOSIG =

VRB02KT 2500 SCT120 14/M08 Q1035 NOSIG =

#39. How long from the time of observation is a TREND in a METAR valid?

1 hour.

30 minutes.

2 hours.

9 hours.

#40. Refer to the following TAF extract: BECMG 1821 2000 BKN004 PROB30 BECMG 2124 0500 FG VV001 What does the abbreviation “BKN004” mean?

4 - 8 oktas, ceiling 400 m.

1 - 4 oktas, ceiling 400 m.

5 - 7 oktas, ceiling 400 FT.

1 - 4 oktas, ceiling 400 FT

#41. What is a SPECI?

A warning of meteorological dangers at an aerodrome, issued only when required.

An aerodrome forecast issued every 9 hours

A selected special aerodrome weather report, issued when a significant change of the weather conditions have been observed

A routine aerodrome weather report issued every 3 hours.

#42. Which of these four METAR reports suggests that rain is most likely in the next few hours?

05016G33KT 8000 OVC015 08/06 Q1028 NOSIG =

23015KT 8000 BKN030 OVC070 17/14 Q1009 BECMG 4000 =

34004KT 9999 SCT040 SCT100 m05/m08 Q1014 NOSIG =

16002KT 0100 FG SCT300 06/06 Q1022 BECMG 1000 =

#43. Refer to the following TAF extract: BECMG 1821 2000 BKN004 PROB30 BECMG 2124 0500 FG VV001 What does the abbreviation “VV001” mean?

Vertical visibility 100 m

Vertical visibility 100 FT

RVR less than 100 m

RVR greater than 100 m

#44. If CAVOK is reported then

low level windshear has not been reported

any CB’s have a base above 5000 FT

no low drifting snow is present

no clouds are present

#45. The following weather report EDDM 241322 VRB03KT 1500 HZ OVC004 BECMG 1517 00000KT 0500 FG VV002 TEMPO 2022 0400 FG VV001 is a :

24 hour TAF.

SPECI.

METAR.

9 hour TAF.

#46. Which of the following statements is an interpretation of the METAR? 25020G38KT 1200 +TSGR BKN006 BKN015CB 23/18 Q1016 BECMG NSW =

Mean wind speed 20-38 knots, meteorological visibility 1200 metres, temperature 23°C

Broken, cloudbase 600 feet and 1500 feet, temperature 18°C

Wind 250°, thunderstorm with moderate hail, QNH 1016 hPa

Gusts of 38 knots, thunderstorm with heavy hail, dew point 18°C

#47. Which of the following weather reports could be, in accordance with the regulations, abbreviated to “CAVOK”? (MSA above ground: LSZB 10000 FT, LSZH 8000 FT, LSGG 12000 FT, LFSB 6000 FT)

LSZH 26024G52KT 9999 BKN060 17/14 Q1012 RETS TEMPO 5000 TSRA =

LSZB 30004KT 9999 SCT090 10/09 Q1006 NOSIG =

LFSB 00000KT 9000 SCT080 22/15 Q1022 NOSIG =

LSGG 22003KT 9999 SCT120 BKN280 09/08 Q1026 BECMG 5000 =

#48. On the European continent METARs of main airports are compiled and distributed with intervals of

0.5 hour

1 hour

2 hours

3 hours

#49. The RVR, as reported in a METAR, is always the

highest value of the A-, B- and C-position

lowest value of the A-, B- and C-position

value representative of the touchdown zone

average value of the A-, B- and C-position

#50. In the TAF for Dehli (India), during the summer, for the time of your landing you note: TEMPO TS. What is the maximum time this deterioration in weather can last in anyone instance ?

60 minutes

120 minutes

10 minutes

20 minutes

#51. Refer to the following TAF extract: BECMG 1821 2000 BKN004 PROB30 BECMG 2124 0500 FG VV001 What does the “BECMG” data indicate for the 18 to 21 hour time frame?

A quick change to new conditions between 1800 UTC and 1900 UTC

Many short term changes in the original weather

Many long term changes in the original weather

The new conditions are achieved between 1800 and 2100 UTC

#52. The cloud base, reported in the METAR, is the height above

airfield level

mean sea level

the pressure altitude of the observation station at the time of observation

the highest terrain within a radius of 8 km from the observation station

#53. Appended to a METAR you get the following runway report: 01650428 What must you consider when making performance calculations?

The braking action will be medium to good

The runway will be wet

Aquaplaning conditions

The friction coefficient is 0.28

#54. Which of these four METAR reports suggests that a thunderstorm is likely in the next few hours?

1350Z 16004KT 8000 SCT110 OVC220 02/m02 Q1008 NOSIG =

1350Z 34003KT 0800 SN VV002 m02/m04 Q1014 NOSIG =

1350Z 04012KT 3000 OVC012 04/03 Q1022 BECMG 5000 =

1350Z 21005KT 9999 SCT040CB SCT100 26/18 Q1016 TEMPO 24018G30 TS =

#55. The wind direction in a METAR is measured relative to

magnetic north

the 0-meridian

grid north

true north

#56. Which of the following weather reports could be, in accordance with the regulations, abbreviated to “CAVOK”?

04012G26KT 9999 BKN030 11/07 Q1024 NOSIG =

15003KT 9999 BKN100 17/11 Q1024 NOSIG =

24009KT 6000 RA SCT010 OVC030 12/11 Q1007 TEMPO 4000 =

29010KT 9999 SCT045TCU 16/12 Q1015 RESHRA NOSIG =

#57. Marseille Information gives you the following meteorological information for Ajaccio and Calvi for 1600 UTC : Ajaccio: wind 360°/2 kt, visibility 2000 m, rain, BKN stratocumulus at 1000 FT, OVC altostratus at 8000 FT, QNH 1023 hPa. Calvi: wind 040°/2 kt, visibility 3000 m, mist, FEW stratus at 500 FT, SCT stratocumulus at 2000 FT, OVC altostratus at 9000 FT, QNH 1023 hPa. The ceilings (more than 4 oktas) are therefore:

1000 FT at Ajaccio and 9000 FT at Calvi

1000 FT at Ajaccio and 500 FT at Calvi

8000 FT at Ajaccio and 9000 FT at Calvi

1000 FT at Ajaccio and 2000 FT at Calvi

#58. Which of the four answers is a correct interpretation of data from the following METAR ? 16003KT 0400 R14/P1500 R16/1000N FZFG VV003 M02/M02 Q1026 BECMG 2000 =

Meteorological visibility 400 m, RVR for runway 16 1000 m, dew point -2°C, freezing fog

RVR for runway 16 1000 m, meteorological visibility increasing in the next 2 hours to 2000 m, vertical visibility 300 m, temperature -2°C

RVR for runway 14 1500 m, meteorological visibility 400 m, QNH 1026 hPa, wind 160° at 3 kt

Meteorological visibility 1000 m, RVR 400 m, freezing level at 300 m, variable winds, temperature 2°C

#59. You receive the following METAR : LSGG 0750Z 00000KT 0300 R05/0700N FG VV001 M02/M02 Q1014 NOSIG = What will be the RVR at 0900 UTC?

900 m

The RVR is unknown, because the “NOSIG” does not refer to RVR.

300 m

700 m

#60. Which of the following statements is an interpretation of the METAR ? 00000KT 0200 R14/0800U R16/P1500U FZFG VV001 m03/m03 Q1022 BECMG 0800 =

Meteorological visibility 200 metres, RVR for runway 16 1500 metres, temperature -3°C, vertical visibility 100 metres

Meteorological visibility 200 feet, RVR for runway 16 more than 1500 metres, vertical visibility 100 feet, fog with hoar frost

Meteorological visibility for runway 14 800 metres, fog with hoar frost, RVR for runway 16 more than 1500 metres

RVR for runway 14 800 metres, vertical visibility 100 feet, calm, meteorological visibility improving to 800 metres in the next 2 hours

#61. Look at this TAF for Zurich Airport TAF LSZH 211322 22018G35KT 9999 SCT012 BKN030 BECMG 1315 25025G45KT TEMPO 1720 4000 +SHRA BKN025TCU BECMG 2022 25015KT T1815Z T1618Z = Which of these statements best describes the weather most likely to be experienced at 1500 UTC?

Meteorological visibility 10 kilometres or more, main cloudbase 3000 feet, wind 250°, temperature 18°C

Meteorological visibility 4000 metres, gusts up to 25 knots, temperature 18°C

Meteorological visibility 10 kilometres or more, main cloudbase 1200 feet, gusts up to 45 knots

Severe rain showers, meteorological visibility 4000 metres, temperature 15°C, gusts up to 35 knots

#62. The validity of a TAF is

2 hours

between 6 and 9 hours

9 hours from the time of issue

stated in the TAF

#63. Runway visual range can be reported in

a METAR

a TAF

a SIGMET

both a TAF and a METAR

#64. Refer to the TAF for Amsterdam airport. FCNL31 281500 EHAM 281601 14010KT 6000 -RA SCT025 BECMG 1618 12015G25KT SCT008 BKN013 TEMPO 1823 3000 RA BKN005 OVC010 BECMG 2301 25020KT 8000 NSW BKN020 = Flight from Bordeaux to Amsterdam, ETA 2100 UTC. What lowest cloud base is forecast for arrival at Amsterdam?

250 FT

500 m

800 FT

500 FT

#65. ATIS information contains

only operational information

meteorological and operational information

only meteorological information

operational information and if necessary meteorological information

#66. In METAR messages, the pressure group represents the

QFE rounded to the nearest hPa

QNH rounded down to the nearest hPa

QFE rounded down to the nearest hPa

QNH rounded up to the nearest hPa

#67. What do the first four letters of the SIGMET message identify?

The issue number

The ICAO identifier for the relevant airport

The name of the air traffic services controlling unit

The validity time

#68. What is the expected change in the weather intensity indicated by this SIGMET? EGTT SIGMET 1 VALID 310730/311130 EGRR LONDON FIR ISOL CB FCST TOPS FL370 ROUTES W OF W00400 NC=

Weakening

Strengthening

Dissipating

No change

#69. How would a severe mountain wave be coded in a SIGMET message?

+ MTW

SEV MTW

SEV MNTW

SEVERE MNTW

#70. In the following SIGMET message, what is the hazard forecast? LFFF SIGMET 1 VALID 310600/311100 LFPW- UIR FRANCE MOD TURB FCST BLW FL420 W of 04W MOVE E 30KT NC=

Moderate turbulence at 42 000 ft west of 4 degrees west and moving eastwards

Moderate turbulence below 42 000 ft west of 4 degrees west and moving from the east

Turbulence at 42 000 ft west of 4 degrees west and moving at 30 kts

Moderate turbulence below 42 000 ft west of 4 degrees west and moving eastwards

Finish