How to determine the coordinates of your flying area.
For example, one can use Google Earth, save as kml , open with Notepad to get coordinates
Choose Sounding and a time interval
choose start time
choose time range
Windspeed in knots and direction at the right
Red curve is temperature
Green is dew point
Blue numbers on the left are pressure altitude
Example of a De Aar world record day
The green and red curve meet very high up, about 4000m AGL. Thermals will go about 3000m high.
Higher up the air dries out, no OD.
green and red curve are close together = rain
Create a PlaceMark and add in the Description
Have a look at the NOAA Data Analyzer code available at