From: "Simon Kröger" <SimonKroeger@...>
Date: 2006-04-14T07:06:54+09:00
Subject: Re: Metar Weather Grabber

Chris Winslett wrote:
> I don't want to pay money to get weather feeds from a bunch of different 
> countries.  So I took my hand at writing my own.  It is for an ajax 
> service that grabs the XML.
> 
> If you use this, expand on it.  If you expand on it, post it back on 
> here.  There are somethings I haven't gotten to yet.  The usage of the 
> weather codes needs to get better too.

Hi Chris,
is there something wrong with the decoded data?

----------------------------------------------------------------------
require 'open-uri'

url = 'ftp://weather.noaa.gov/data/observations/metar/decoded/KLGA.TXT'
open(url) do |f|
  weather = f.read.to_a.map {|line| line.strip.split(':')}
  label = weather.shift.first.split(',').first
  date = weather.shift.first
  puts %Q[<CurrentWeather label = "#{label}" date = "#{date}">]
  weather.each do |w|
    key = w.first.tr('()', ' ').delete(' ')
    puts %Q[  <#{key}>#{w[1].strip}</#{key}>]
  end
  puts '</CurrentWeather>'
end
----------------------------------------------------------------------

output:
----------------------------------------------------------------------
<CurrentWeather label = "New York" date = "Apr 13, 2006 - 04">
  <Wind>from the NW (320 degrees) at 9 MPH (8 KT)</Wind>
  <Visibility>10 mile(s)</Visibility>
  <Skyconditions>partly cloudy</Skyconditions>
  <Temperature>75.0 F (23.9 C)</Temperature>
  <DewPoint>35.1 F (1.7 C)</DewPoint>
  <RelativeHumidity>23%</RelativeHumidity>
  ...
</CurrentWeather>
----------------------------------------------------------------------

cheers

Simon