CA.I.C.K3fFAA-S-ACS-7B · Nov 2023Knowledge
f. Clouds
Meteorology applicable to the departure, en route, alternate, and destination under visual flight rules (VFR) in Visual Meteorological Conditions (VMC), including expected climate and hazardous conditions such as: f. Clouds
Bottom line
VMC means visibility, distance from cloud, and ceiling meet or exceed the minimums specified for VFR. IMC means visibility, distance from clouds, and ceiling are less than the VFR minimums, requiring operations under IFR. Continued VFR flight from VMC into marginal VMC and IMC is a factor contributing to loss of control in-flight.
Key numbers
| Number | What it means |
|---|---|
| 15 to 20 minutes old by the time it is assembled and displayed in a cockpit | NEXRAD age |
| significant changes expected within 1 hour before and after the ETA | Destination forecast |
FAA references
- PHAK Glossary (p. G-33) — FAA-H-8083-25C (2023)
- RMH Glossary — FAA-H-8083-2A
- AFH ch. 5, Human Factors (p. 5-2) — FAA-H-8083-3C
- AC 91-92, paras. 7.6, 7.7 — AC No: 91-92
- AWH ch. 3 (p. 3-3) — FAA-H-8083-28A
- PHAK ch. 2 (p. 2-16) — FAA-H-8083-25C (2023)
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