---
title: "in and out of clouds — aviation glossary — OnlyPlanes"
description: "IAO stands for in and out of clouds in FAA terminology."
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  "og:title": "in and out of clouds — aviation glossary"
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Aviation abbreviation

# in and out of clouds

IAO

ABBR · Meteorology

At a glance

## Meaning of in and out of clouds

IAO stands for in and out of clouds in FAA terminology.

### More about in and out of clouds

This abbreviation is used in aviation weather. The English reference lists in and out of clouds with the abbreviation IAO.

FAA abbreviations reflect US aviation usage. Their meaning and permitted use can differ in documents from other countries.

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