FAA Ground School Practice Test

What is the wind forecast for STL at 12000 ft?

1. 220 degrees true at 37 knots

2. 240 degrees true at 40 knots

3. 230 degrees true at 39 knots

4. 250 degrees true at 42 knots

The correct answer is: 230 degrees true at 39 knots

The wind forecast for STL at 12,000 feet is indicated by a specific direction and speed of the wind. In this instance, the correct answer reflects the wind direction as 230 degrees true and a speed of 39 knots. Wind direction is measured in degrees, with true north being 0 degrees and the direction increasing clockwise. Thus, 230 degrees indicates that the wind is coming from the southwest direction. The wind's speed, measured in knots, is important for pilots as it affects both aircraft performance and flight planning. In forecasting, various factors such as atmospheric pressure patterns, geographic features, and altitude can influence wind conditions. Taking these factors into account, the choice indicating 230 degrees at 39 knots provides a realistic estimate of the wind conditions in STL at the specified altitude. The other options present different wind directions and speeds that do not align with typical meteorological patterns expected at 12,000 feet in the STL area during the specified timeframe. Therefore, the correct identification of wind speed and direction is critical for accurate flight operations and planning.