Balloon Trajectory Forecasts

Which initial GFS model time? 18Z 21 July 2017 12Z 21 July 2017 06Z 21 July 2017 00Z 21 July 2017 18Z 20 July 2017 12Z 20 July 2017
The forecast is extracted from the Global Forecast System (GFS) which is run four times per day. The times listed are Universal Time.

Which forecast period? Analysis 6 hour 12 hour 18 hour 24 hour 30 hour 36 hour 42 hour 48 hour 54 hour 60 hour 66 hour 72 hour 78 hour 84 hour
The valid time for the forecast is the sum of the model initialization time and the forecast period.

What location?
Specify Lat/Lon Laramie, WY Corroboree, Australia Darwin, Australia Steve Heli, Australia Billabong, Australia Pt Stewart, Australia McMurdo, Antarctica Kiruna, Sweden Lauder, New Zealand Maxaranguape, Brazil Monte Alegre, Brazil   Latitude: Longitude:
Values must be decimal degrees with west negative.

Balloon Ceiling: meters

Output Format: List GoogleEarth KML