Tropical Weather
Tropical Weather is a core knowledge area on the Aviation Weather FAA written exam. This hub collects our 5 in-depth, ACS-aligned tropical weather articles — each written in plain English and grounded in the official FAA handbooks. Work through them below, then drill the topic with practice questions.
Tropical Circulation: Subtropical Highs and the Trade Wind Belts
Subtropical high-pressure belts drive the northeast and southeast trade winds that converge at the ITCZ, producing dramatically different weather across west coasts, east coasts, open ocean, and islands throughout the tropics.
The Intertropical Convergence Zone (ITCZ) and Tropical Convection
The Intertropical Convergence Zone (ITCZ) is the low-latitude belt where Northern and Southern Hemisphere trade winds meet, producing persistent tropical convection, heavy rainfall, and significant weather hazards for aviators.
Tropical Waves, Shear Lines, and Easterly Disturbances
Tropical waves, shear lines, and easterly disturbances are the primary weather-producing systems in the tropics, and understanding how they form within the ITCZ, trade wind belts, and subtropical high-pressure environment is essential for safe flight planning in tropical regions.
Tropical Cyclone Life Cycle: Development, Movement, and Decay
Tropical cyclones follow a defined life cycle—from tropical disturbance through peak intensity to decay—driven by warm sea-surface temperatures, Coriolis force, and atmospheric dynamics explained in FAA-H-8083-28B, Chapter 17.
Monsoon Circulations and Their Seasonal Flying Weather
Monsoon circulations arise when seasonal land-sea temperature contrasts overpower the trade winds, producing dramatic wet and dry seasons that profoundly affect tropical flying weather.
More Aviation Weather subjects
Articles are original summaries grounded in the public-domain FAA handbooks and cite their source. ACS-aligned study aids — not a substitute for the official handbooks or regulations.