SIGMET

#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=

• AWeakening
• BStrengthening
• CDissipating
• DNo change

#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?

• ABecause of the expected turbulence you select a flight level below FL 250.
• BYou show no further interest in these reports, since they do not concern the route to be flown
• COwing to these reports and taking into account the presence of heavy thunderstorms at planned FL 310 you select a higher flight level (FL 370).
• DYou cancel the flight since the expected dangerous weather conditions along the route would demand too much of the passengers.

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

• A+ MTW
• BSEV MTW
• CSEV MNTW
• DSEVERE MNTW