NOAA observation station.
Parses an xml document into a station
t :: %WeatherReport.Station{html_url: String.t, latitude: float, longitude: float, rss_url: String.t, state: String.t, station_id: String.t, station_name: String.t, xml_url: String.t}
parse(String.t) :: t
Parses an xml document into a station.