# UK Data: Airport weather (METAR and TAF)

> Official airport weather: METAR observations and TAF forecasts from the NOAA Aviation Weather Center

- name: uk.co.reliness/weather-observations
- version: 1.5.0
- connection class: unknown (unknown)
- trust: 61/100 flags: no-repository
- quality: 91/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/uk.co.reliness%2Fweather-observations
- tools: https://api.protogrid.dev/v1/servers/uk.co.reliness%2Fweather-observations/tools

**Not classified yet.** The remote endpoints have not been probed successfully, or the listing has nothing to connect to.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "weather-observations": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/weather-observations",
      "headers": {
        "Authorization": "Bearer ${WEATHER_OBSERVATIONS_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${WEATHER_OBSERVATIONS_TOKEN}`.

## Trust

- hygiene: 80
- liveness: 27
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website -unreachable(1 failures) +updated-7d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 978 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump
- pass `tools.hidden_text`: no hidden text in tool names, descriptions, schemas or annotations

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name
- pass `stability.new_links`: no tool change named a new site

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 978 tokens to load them all
- tool set hash: eafd137914359d332115f6c65411cca9
- badge: [![protogrid quality](https://protogrid.dev/badge/uk.co.reliness/weather-observations.svg)](https://protogrid.dev/servers/uk.co.reliness/weather-observations)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://ukdata.reliness.co.uk/mcp/weather-observations (streamable-http, auth none, reachable false, uptime30d 0.9285714)

## Packages

_none_

## Tools (4)

- `metar_history`: Every METAR observation for one airport over the last N hours (up to 30 days), decoded and oldest first, plus a summary of the high and low temperature, strongest gust, flight-category low point and the weather reported. For checking what actually happened at a station: rain, gusts, fog, when it cleared. Source: NOAA/NWS Aviation Weather Center. The API returns at most 400 reports per call (about 8 days at half-hourly stations); not for flight planning. (cost: 1 credit)
- `metar_latest`: What the weather is right now at one or more airports: the latest official METAR observation decoded into temperature (C and F), dew point, humidity, wind and gusts, visibility, cloud and ceiling, pressure and flight category. Answers "what is the temperature at Heathrow right now" with the actual station reading, not a model forecast. Source: NOAA/NWS Aviation Weather Center (worldwide airports). Only stations that reported in the last 2 hours are returned; not for flight planning. (cost: 1 credit)
- `pireps_near_airport`: Recent pilot reports (PIREPs) within a distance of an airport: turbulence and icing with intensity, altitude, aircraft type and time, plus a tally of how many reports found none, light, moderate or severe turbulence. PIREPs are the only first-hand reports of turbulence actually encountered, so they answer "is it bumpy around Denver right now" for pilots and nervous flyers. Source: NOAA/NWS Aviation Weather Center; coverage is mainly the United States. Reports are sparse and individual; not for flight planning. (cost: 1 credit)
- `taf_forecast`: The current Terminal Aerodrome Forecast (TAF) for an airport: the official 24-30 hour forecast for wind, visibility, weather and cloud at the airfield, decoded into time blocks with plain-English change types (temporary, becoming, 30% chance). Answers "will it be foggy or windy at the airport tomorrow morning". Source: NOAA/NWS Aviation Weather Center (worldwide airports that issue TAFs). Covers the airfield only, not the route; not for flight planning. (cost: 1 credit)