---
title: Aircraft reports (AMDAR)
summary: Automated wind and temperature reports from commercial aircraft during climb, cruise and descent.
mount: <div class="card"><p class="kicker">Observing systems</p><div class="wx-scroll" tabindex="0"><svg class="mg" viewBox="0 0 994 136" width="994" height="136" role="img" aria-label="Aircraft reports (AMDAR): what it is connected to"><style>.mg text{font:12px var(--sans);fill:var(--ink)}.mg .mg-sub,.mg .mg-verb{font-size:10px;fill:var(--ink-2)}.mg-node rect{fill:var(--surface);stroke:var(--line-2)}.mg-node.me rect{stroke:var(--focus);stroke-width:2}.mg-node.unstated rect{stroke-dasharray:2 3;fill:var(--paper)}a.mg-node:hover rect,a.mg-node:focus rect{stroke:var(--focus);stroke-width:2}.mg-edge{fill:none;stroke:var(--ink-2);stroke-opacity:.55;stroke-width:1}.mg-edge.unv{stroke-dasharray:5 4}</style><path class="mg-edge" d="M232 23C306 23 306 68 380 68"><title>stated on the page: ecmwf.int</title></path><text class="mg-verb" x="240" y="19" text-anchor="start">assimilates</text><a class="mg-node " href="model-ecmwf-ifs.html"><rect x="2" y="8" width="230" height="30" rx="4"/><text x="9" y="21">ECMWF IFS</text><text class="mg-sub" x="9" y="33">Models</text></a><path class="mg-edge" d="M232 63C306 63 306 68 380 68"><title>stated on the page: ncei.noaa.gov</title></path><text class="mg-verb" x="240" y="59" text-anchor="start">assimilates</text><a class="mg-node " href="model-gfs.html"><rect x="2" y="48" width="230" height="30" rx="4"/><text x="9" y="61">GFS (NOAA/NCEP)</text><text class="mg-sub" x="9" y="73">Models</text></a><path class="mg-edge" d="M232 103C306 103 306 68 380 68"><title>stated on the page: community.wmo.int</title></path><text class="mg-verb" x="240" y="99" text-anchor="start">coordinates</text><a class="mg-node " href="body-wmo.html"><rect x="2" y="88" width="230" height="30" rx="4"/><text x="9" y="101">World Meteorological Organization</text><text class="mg-sub" x="9" y="113">Bodies</text></a><g class="mg-node me"><rect x="380" y="53" width="230" height="30" rx="4"/><text x="387" y="66">Aircraft reports (AMDAR)</text><text class="mg-sub" x="387" y="78">Observing systems</text></g></svg></div><p class="wx-legend meta">Left: what points at it. Right: what it points at. Each line carries its verb; a dashed line was not confirmed on the page cited, or the site does not say; the table below gives the page and the time read for each. <span class="prov">From <a href="obs-aircraft.json">obs-aircraft.json</a></span></p></div>
---
# Aircraft reports (AMDAR)

> Kept by incident.meteorology@web-summit.dinis, 11 November 2026, 11:36 UTC

[Where a forecast comes from](../index.md) · Observing systems · id `obs-aircraft` · [as data](obs-aircraft.json)

Automated wind and temperature reports from commercial aircraft during climb, cruise and descent.

**Address:** [https://community.wmo.int/en/activity-areas/aircraft-based-observations](https://community.wmo.int/en/activity-areas/aircraft-based-observations) (leaves this site)

## What it is connected to, and who says so

| This | Verb | That | The page that says so | Read | Check |
|---|---|---|---|---|---|
| Aircraft reports (AMDAR) | **assimilated by** | [ECMWF IFS](model-ecmwf-ifs.md) | [ecmwf.int](https://www.ecmwf.int/en/about/media-centre/focus/2020/fact-sheet-earth-system-data-assimilation): "conditions at the location of the instrument. Such in-situ measurements come for example from weather stations, aircraft, radiosondes, ships or buoys. Other observations are based on remote sensing, for example from sate" | 11:28 UTC, 11 Nov | stated on the page |
| Aircraft reports (AMDAR) | **assimilated by** | [GFS (NOAA/NCEP)](model-gfs.md) | [ncei.noaa.gov](https://www.ncei.noaa.gov/products/weather-climate-models/global-data-assimilation): "Grid/Scale Period of Record Model Cycle Output Timestep Data Access Links GDAS Snow, Ice, SST, Satellite, Ship, Aircraft (GRIB and BUFR) 1°x1° 0.5°x0.5° 0.25°x0.25° 01Jan2001–Present (approx. one year to present online) " | 11:28 UTC, 11 Nov | stated on the page |
| Aircraft reports (AMDAR) | **is what World Meteorological Organization coordinates** | [World Meteorological Organization](body-wmo.md) | [community.wmo.int](https://community.wmo.int/en/activity-areas/aircraft-based-observations): "Aircraft-Based Observations The WMO ABO Programme collects vital meteorological data from aircraft. Key sources include AMDAR, ICAO ADS-C/ADS-B, SSR Mode S, IAGOS, and wx-UAS from NMHS and partners. As a key component of" *WMO coordinates; airlines and national services run it.* | 11:28 UTC, 11 Nov | stated on the page |

## Licence: what we may do with it

No licence row yet covers this node: **unclear** until one does. [The licence table](../licences.md).

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Not a warning service: this page explains where data comes from. For warnings follow [IPMA](https://www.ipma.pt/pt/otempo/prev-sam/) and ANEPC.