Balloon Trajectory Forecasts

Which initial GFS model time? 00Z 21 September 2021 18Z 20 September 2021 12Z 20 September 2021 06Z 20 September 2021 00Z 20 September 2021
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 3 hour 6 hour 9 hour 12 hour 15 hour 18 hour 21 hour 24 hour 27 hour 30 hour 33 hour 36 hour 39 hour 42 hour 45 hour 48 hour 51 hour 54 hour 57 hour 60 hour 63 hour 66 hour 69 hour 72 hour 75 hour 78 hour 81 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: ListGoogleEarth KML