weather servicesFAA-published sample question (ATM, Aug 2021)
You are planning to arrive at the KHOU airport at 0900Z, what conditions can be expected as indicated by this TAF: KHOU 151720Z 1518/1618 22009KT P6SM SCT030 SCT250 FM160000 18005KT P6SM BKN050 BKN120 FM160600 21007KT P6SM VCSH SCT025 BKN200 FM160900 34010KT P6SM VCTS BKN035CB BKN250 TEMPO 1611/1613 TSRA BKN012 OVC025CB FM161600 35007KT P6SM BKN020
A
Winds from the south. blowing to the north at 10 knots.
B
Thunderstorm activity 5-10 miles from the airport's runway complex.✓ Correct Answer
C
Rain showers, scattered clouds at 2500 feet, and overcast at 20,000 feet.
Explanation
The group in effect at 0900Z is FM160900 34010KT P6SM VCTS BKN035CB: wind from 340 at 10 knots and thunderstorms in the vicinity, which in a TAF means 5 to 10 statute miles from the airport. The wind is northerly, not southerly, and the showers with SCT025/BKN200 belong to the earlier FM160600 group.
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