Chapter 26 - Terminal Aerodrome Forecasts

The following TAF was issued by Shanghai Pudong Airport:

TAF ZSPD 260905Z 2612/2712 14012G20MPS 6000 -SHRA BKN013 TX27/2706Z TN25/2620Z TEMPO 2612/2618 +SHRA BKN010 FEW030CB TEMPO 2618/2624 +SHRA BKN010 FEW030CB

Which of the following statements is correct?

• The dew point temperature is forecasted to be 25^oC

• The cloud cover is expected to be 5-7 octas between 1200Z and 1800Z

• From 1200Z on the 26th until 1200Z on the 27th, the airport is expected to face heavy showers and rain throughout

• this is a 24-hour TAF

The following TAF was issued for VELR:

TAF VELR 260800Z 2609/2618 08007KT 4000 -RA HZ FEW010 SCT018 FEW025CB BKN090 BECMG 2613/2615 00000KT 2500 RA BR FEW010 SCT018 BKN090

Which of the following statements is correct?

• Visibility at the airport is expected to be affected by haze for most of the forecasted period

• Visibility at the airport is expected to be affected by mist for most of the forecasted period

• Between 1300Z and 1500Z the wind is expected to be calm

• There will be 3-4 octas of cumulonimbus clouds during the forecasted period

The following TAF was issued for Mumbai Airport:

TAF VABB 261100Z 2612/2618 25008G18KT 3000 -RA HZ FEW012 SCT025 BKN090 TEMPO 2612/2618 25012G22KT 1500 -TSRA SHRA FEW012 SCT018 FEW030CB BKN090 BECMG 2615/2617 2500 -RA HZ BECMG 2622/2624 2000 RA HZ TEMPO 2700/2704 25007G17KT 1500 -TSRA SHRA FEW012 SCT018 FEW030CB BKN090 BECMG 2704/2706 3000 -RA HZ BECMG 2715/2717 2500 -RA HZ

Which of the following statements is correct?

• From 0001UTC on 27th onwards until the end of the forecasted period, the airport will experience thunderstorms

• Any thunderstorms at the airport are expected to not last more than 60 minutes

• The condition will be CAVOK after the forecasted thunderstorms

• Visibility at the airport is mainly affected by rain

The following METAR and TAF was issued for London Heathrow Airport:

METAR EGLL 261220Z AUTO VRB03KT 9999 SCT029 BKN046 23/16 Q1010 NOSIG

TAF EGLL 261052Z 2612/2718 8000 -SHRA 22005KT 9999 SCT025 PROB30 TEMPO 2612/2616 8000 -SHRA PROB30 TEMPO 2701/2704 BKN010 PROB30 TEMPO 2704/2708 4000 +SHRA TEMPO 2710/2718 7000 SHRA PROB30 TEMPO 2711/2718 3000 +SHRA BKN014 BKN030CB

Which of the following statements is correct?

• A cold front is about to approach the airport

• A cold front has passed through the airport

• A warm front has passed through the airport

• A hurricane is approaching the airport

Which of the following statements is correct regarding TAFs?

• PROB 30 indicates a high chance of the forecasted weather actually happening

• BECMG indicates a permanent change in the forecast conditions

• TEMPO indicates a permanent change in the forecast conditions

• TEMPO indicates a rapid change in the forecast condition is expected