Part 107 METAR and TAF Practice Questions

Answer: C. Cloud heights in a METAR are in hundreds of feet AGL, and the ceiling is the lowest broken or overcast layer, so OVC008 is an 800 ft AGL ceiling. Visibility is 3 SM in mist (BR), which meets the §107.51(c) minimum of 3 statute miles (that rule is about flight visibility at your control station). §107.51(d) requires at least 500 ft below clouds, so 800 − 500 = 300 ft AGL. Wind is from 240° true at 15 knots, gusting to 25.

Source: FAA-G-8082-22 Remote Pilot sUAS Study Guide, Ch. 3a, Aviation Routine Weather Report (METAR), pp. 15–17; AC 00-45H Chg 2, Aviation Weather Services, para 3.1.5.5 (Wind Group), p. 3-6, and para 3.1.5.9 (Sky Condition Group), pp. 3-13 to 3-15; 14 CFR §107.51(c)–(d)

Answer: A. Per AC 00-45H, TEMPO forecasts temporary fluctuations that are expected to (1) have a high (greater than 50 percent) probability of occurring, (2) last one hour or less in each instance, and (3) in aggregate, cover less than half of the stated period. 1920/1922 = from the 19th at 2000Z to the 19th at 2200Z. 2SM TSRA = visibility 2 statute miles in a thunderstorm with (moderate) rain. That would be below Part 107's 3 SM flight-visibility minimum.

Source: AC 00-45H Chg 2, Aviation Weather Services, para 5.13.2.12.2 (TEMPO Group), p. 5-101; FAA-G-8082-22 Remote Pilot sUAS Study Guide, Ch. 3a, Terminal Aerodrome Forecasts (TAF), pp. 18–19; 14 CFR §107.51(c)

Answer: C. The ceiling is the lowest broken or overcast layer: BKN015 = 1,500 ft AGL. Staying 500 ft below clouds would allow 1,000 ft AGL, but §107.51(b) still caps you at 400 ft AGL. Visibility of 10 SM meets the 3 SM minimum.

Source: AC 00-45H Chg 2, Aviation Weather Services, para 3.1.5.9 (Sky Condition Group), pp. 3-13 to 3-15; FAA-G-8082-22 Remote Pilot sUAS Study Guide, Ch. 3a, METAR, pp. 15–17; 14 CFR §107.51(b)–(d)

Answer: A. In a METAR, wind direction may be coded VRB in place of the three-digit direction when it was variable and the speed was 6 knots or less during the 2-minute evaluation period. Speed is in knots: 4 knots. (Above 6 knots, a variable direction is shown as a range, e.g., 21010KT 180V240.)

Source: AC 00-45H Chg 2, Aviation Weather Services, para 3.1.5.5.2 (Variable Wind Direction, speed 6 kts or less), p. 3-7, and 3.1.5.5.3, p. 3-7; FAA-G-8082-22 Remote Pilot sUAS Study Guide, Ch. 3a, METAR, pp. 15–17

Answer: C. Per AC 00-45H, FM (from) indicates that prevailing conditions are expected to change significantly over a period of less than 1 hour. FM192100 = from day 19 at 2100Z (UTC). Each FM group is a complete, self-contained description, and all conditions forecast before it are superseded.

Source: AC 00-45H Chg 2, Aviation Weather Services, para 5.13.2.12.1 (From (FM) Group), p. 5-100; FAA-G-8082-22 Remote Pilot sUAS Study Guide, Ch. 3a, Terminal Aerodrome Forecasts (TAF), p. 18