4

IFR weather

The briefing, the clouds you fly in, the ice and storms you must not: the weather decisions that open or close an IFR flight.

  1. 1The IFR weather briefingSources, reading order, ATIS / ASOS / AWOS, and building the big picture before you fly.15 min
  2. 2IMC, ceilings and visibilityWhat instrument weather actually is, and how ceiling and visibility are measured and reported.14 min
  3. 3IcingTypes, temperature bands, severity, freezing level, and the escape plan.16 min
  4. 4Thunderstorms in IFREmbedded cells, radar, deviations, and inadvertent penetration.15 min
  5. 5Forecasts and warningsTAF, AIRMET, SIGMET, convective SIGMET, and PIREPs -- decoded.16 min
  6. 6The atmosphere behind the forecastWhy air rises or refuses to: composition, stability, the adiabatic process and lapse rates, and where the heat goes when water changes state.13 min