GED Reasoning Through Language ArtsReading ComprehensionMedium
A pilot is reading a weather briefing report. One section states: 'Current conditions indicate scattered cumulus at 3,000 feet, visibility 10 statute miles, temperature 22°C, dew point 18°C. Winds are from 270 degrees at 15 knots, gusting to 25 knots.' Based on this information, which of the following is the most likely immediate concern for the pilot?
- AThe potential for fog formation.
- BThe need to adjust for strong crosswinds.
- CThe risk of thunderstorms and heavy precipitation.
- DThe possibility of clear-air turbulence.
Show answer & explanationAnswer & explanation
Correct answer: B. The need to adjust for strong crosswinds.
Winds from 270 degrees (west) at 15 knots, gusting to 25 knots, indicate significant wind shear and strong gusts. For a pilot, especially during takeoff or landing, strong crosswinds (wind perpendicular to the runway) require careful handling and are an immediate concern.
Why the other options are wrong
- A. A dew point of 18°C and temperature of 22°C means a temperature-dew point spread of 4°C. While fog can form, this spread is not critically small enough to indicate immediate fog formation, which usually requires a spread of 2-3°C or less.
- C. Scattered cumulus clouds at 3,000 feet do not inherently indicate thunderstorms or heavy precipitation, which would typically be associated with towering cumulus or cumulonimbus clouds and more unstable atmospheric conditions.
- D. Clear-air turbulence is not directly indicated by these surface conditions; it typically occurs at higher altitudes and is associated with jet streams or mountain waves.
Interpreting Weather Briefings
Analyzing meteorological data in aviation reports to understand current and forecast weather conditions relevant to flight safety and planning.
- Involves understanding standard meteorological abbreviations and units.
- Requires assessing conditions like wind, visibility, clouds, and temperature.
- Helps pilots make informed decisions about flight routes and operations.
Memory trick: Winds, Clouds, Visibility, and Temp-Dew Point are the pilot's weather checklist.