metar.rb

require 'net/ftp'
require 'time'

metar_uri = 'tgftp.nws.noaa.gov'
metar_base = '/data/observations/metar/stations/'
metar_station = ARGV[0]
metar_file = metar_station + '.TXT'

metar_data = Array.new

Net::FTP.open metar_uri do |conn|
  conn.login
  conn.chdir metar_base
  conn.gettextfile metar_file do |line|
    line.split(" ").each do |token|
      metar_data.push token
    end
  end
end

str_datetime = metar_data[0] + " " + metar_data[1] + " UTC"

metar_datetime = Time.parse str_datetime

puts metar_datetime.localtime
puts metar_data.to_s