IR.I.B.R2bFAA-S-ACS-8C · Nov 2023Risk management

b. Aviation weather reports and forecasts

ACS element text (the applicant demonstrates understanding of)

Use and limitations of: b. Aviation weather reports and forecasts

Bottom line

Commercial providers also produce forecasts, analyses, and other proprietary weather products that may substantially differ from the information contained in NWS-produced products. According to 14 CFR § 91.103, each pilot in command (PIC) shall, before beginning a flight, become familiar with all available information concerning the flight, including weather reports and forecasts.

FAA references

  1. PHAK ch. 13 (p. 13-2) — FAA-H-8083-25C (2023)
  2. AWH ch. 3 (pp. 3-5–3-6) — FAA-H-8083-28A
  3. AWH chs. 2, 3 (pp. 2-6, 3-1) — FAA-H-8083-28A
  4. AFH ch. 11 (p. 11-7) — FAA-H-8083-3C
  5. AIM 7-1-28 (Key to Aerodrome Forecast (TAF) and Aviation Routine Weather Report (METAR)) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
  6. 14 CFR 91.103 (Preflight action.) — eCFR current as of 2026-03-05
  7. AC 91-92, paras. 7.4.1.2, 7.7 — AC No: 91-92
  8. RMH ch. 5 (p. 5-4) — FAA-H-8083-2A
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