aewx-metar-parser

    0.10.1 • Public • Published

    ✈️ METAR parser

    Parse METAR information into structured JavaScript object. The structure of the returned object is closely related to the API response of CheckWX.

    Installation: npm install aewx-metar-parser --save

    Functionality

    This METAR parser returns the following parts of a METAR string:

    • ICAO code
    • Date / time
    • Wind speed (in kts, mps) & direction
    • Visibility (in meters and miles)
    • Weather phenomena
    • Clouds
    • Temperature (in °C & °F) & humidity
    • Barometer pressure (in InHg, kpa & mb)

    Code example

    'use strict';
    const metarParser = require('aewx-metar-parser');
    const metarObject = metarParser('KSFO 070121Z 19023KT 1 1/2SM R28R/6000VP6000FT -RA BKN004 BKN013 OVC035 15/12 A2970 RMK AO2 T01500122 PNO $');
     

    …returns:

    {
      raw_text: 'KSFO 070121Z 19023KT 1 1/2SM R28R/6000VP6000FT -RA BKN004 BKN013 OVC035 15/12 A2970 RMK AO2 T01500122 PNO $',
      raw_parts: [
        'KSFO',
        '070121Z',
        '19023KT',
        '3/2SM',
        'R28R/6000VP6000FT',
        '-RA',
        'BKN004',
        'BKN013',
        'OVC035',
        '15/12',
        'A2970',
        'RMK',
        'AO2',
        'T01500122',
        'PNO',
        '$'
      ],
      icao: 'KSFO',
      observed: Date('2019-01-07T01:21:03.232Z'),
      wind: {
        degrees: 190,
        speed_kts: 23,
        speed_mps: 11.832222176208026,
        gust_kts: 23,
        gust_mps: 11.832222176208026
      },
      visibility: {
        miles: "1.5",
        miles_float: 1.5,
        meters: "2500",
        meters_float: 2414.016
      },
      conditions: [
        { code: '-'},
        { code: 'RA'}
      ],
      clouds: [
        { code: 'BKN', base_feet_agl: 400, base_meters_agl: 121.92 },
        { code: 'BKN', base_feet_agl: 1300, base_meters_agl: 396.24 },
        { code: 'OVC', base_feet_agl: 3500, base_meters_agl: 1066.8 }
      ],
      ceiling: {
        code: 'OVC',
        feet_agl: 3500,
        meters_agl: 1066.8
      },
      temperature: {
        celsius: 15,
        fahrenheit: 59
      },
      dewpoint: {
        celsius: 12,
        fahrenheit: 53.6
      },
      humidity_percent: 82.26135295757305,
      barometer: {
        hg: 29.7,
        kpa: 100.57572661390854,
        mb: 1005.7572661390855
      },
      flight_category: 'VFR'
    }

    More information on METAR

    Wikipedia has an article on METAR information explaining the very basics.

    These sites make METAR information publicly available:

    Status

    npm version Build Status devDependency Status

    Legal stuff

    Author: Frank Boës

    Copyright & license: See LICENSE.txt

    Install

    npm i aewx-metar-parser

    DownloadsWeekly Downloads

    591

    Version

    0.10.1

    License

    MIT

    Unpacked Size

    32.7 kB

    Total Files

    14

    Last publish

    Collaborators

    • avatar