AD WRNG

Required roles: AIS PIB API — Roles
Base endpoint: https://ais-pib-api.ibosoft.net.tr:2087/opmet-ad-wrng
Reference documents: ICAO Doc 10157 PANS-MET, Ed. 1 (27/11/25)
Attribution: show ibonav.aero wherever this data is displayed
Data sources: TSMS (Turkish State Meteorological Service).
Last updated: 17 OCT 2026

About the reference documents: Related Documents and Resources
Depending on your use, the original data sources may also need to be credited.

Aerodrome warnings in force for an aerodrome, and of the last 24 hours, in the PANS-MET aerodrome warning format. Data is refreshed every 3 minutes.

Some data sources do not publish aerodrome warnings in the PANS-MET format. Their warnings are converted to the PANS-MET Table A7-6 template; such data sources are marked (Converted) in the source field. To decode a warning, pass its raw text to AD WRNG (ICAO).

Endpoints

Endpoint	Description
`GET /opmet-ad-wrng/{icao}`	Warnings of one aerodrome, newest first
`GET /opmet-ad-wrng/recent`	Warnings in force for all aerodromes (monitoring)

Parameters

Parameter	In	Description
`icao`	path	ICAO location indicator of the aerodrome (4 letters). Case-insensitive.
`hours`	query, optional (`/{icao}`)	Warnings issued within the last `N` hours, `0 < hours ≤ 24`. Omit for the warnings currently in force.
`source`	query, optional	Use only this data source (`mgm`); an unknown id returns `400`

Coverage

`source` id	Data source	Coverage
`mgm`	TSMS (Converted)	Aerodromes with indicators starting with `LT` (Türkiye)

Aerodromes outside the coverage return 404.

Response

{
  "sources": ["TSMS (Converted)"],
  "reports": [
    {
      "icao": "LTAP",
      "type": "AD WRNG",
      "raw": "LTAP AD WRNG 1 VALID 251100/251700 KUVVETLI RUZGAR VE HAMLE FCST RMK RUZGARIN KUZEYLI YONLERDEN …",
      "sequence_number": 1,
      "issue_time": "2026-09-25T06:52:00Z",
      "valid_from": "2026-09-25T11:00:00Z",
      "valid_to": "2026-09-25T17:00:00Z",
      "cancel": false,
      "source": "TSMS (Converted)"
    }
  ]
}

Field	Description
`icao`	ICAO location indicator of the aerodrome
`type`	`AD WRNG`
`raw`	Warning text in the Table A7-6 format
`sequence_number`	Sequence number of the warning (restarts daily)
`issue_time`	Time the warning was issued (ISO 8601, UTC)
`valid_from` / `valid_to`	Validity period (ISO 8601, UTC)
`cancel`	`true` for a cancellation (`CNL AD WRNG …`)
`source`	Name of the data source

/recent also returns count.

Converted warnings

When a warning is converted, the template elements are filled from the source warning and the free-text parts are added at the end:

Phenomena with a template abbreviation (e.g. TS, SN, FZRA) are written as such; other phenomena go into the free-text element (max. 32 characters, longer text cut with ...).
The source description is appended as RMK … (max. 100 characters). RMK is not a Table A7-6 element, so the decoder shows it under Undecodable elements — this is expected.
A cancellation is a new warning that cancels an earlier one: … CNL AD WRNG <n> <period>.
Free text keeps the source language; only the letters are written in plain ASCII.

Example (converted):

LTAF AD WRNG 1 VALID 201600/202000 TS FIRTINA FCST RMK KUVVETLI GOKGURULTULU SAGANAK …

Errors

Code	Meaning
`400`	Invalid ICAO location indicator (must be exactly 4 letters), or unknown `source` id
`404`	No warning for this aerodrome (`No AD WRNG data for 'LTAP'`), or aerodrome outside the coverage
`422`	`hours` out of range
`503`	The service is starting up; retry shortly

A 404 means "no warning", not a failure: show it as "no data" in your application. If a data source cannot be reached, the last received warnings stay available.

AD WRNG#

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