code: function(lat, lon, done){
  
      var url = "http://api.met.no/weatherapi/locationforecast/1.8/?lat=" + lat + ";lon=" + lon;
  
      request(url, function(error, response, body) {
  
        if (!error && response.statusCode < 400) {
  
          var $ = cheerio.load(body);
          var nearbyForecasts = closestInstantForecasts($, $("product time"), FORECASTS_COUNT);
  
          done(nearbyForecasts.map(createForecastItem));
  
        } else {
          console.error("error requesting met.no forecast");
          done();
        }
      });
    }
docs: call done with weather forecast results for GPS location lat, lon