public void performParse(EncodedWxStringParseContext context)
      throws EncodedWxElementParseException {

    double temperature = parseEncodedTemperature(context.getCurrentElement().substring(1, 5));

    double dewpoint = parseEncodedTemperature(context.getCurrentElement().substring(5));

    context.getObservation().getTemperatures().setAmbientTemperature(fromC(temperature));

    context.getObservation().getTemperatures().setDewpoint(fromC(dewpoint));
  }