Woodward Academy's weather data is collected by a Davis Vantage Pro 2 instrument package mounted on the roof of the Science and Math Building at Woodward Academy in College Park, Georgia. The wind instruments are located about 6 feet (2 meters) above the southeast corner of the roof, about 50 feet (15 meters) above the ground. Due to local obstructions (including a tree about 60 feet to the east), wind speeds are slightly less than measured at KATL (Hartsfield-Jackson International Airport) a bit less than 3 miles to the south. An additional temperature and humidity sensor is in a solar radiation shield (fan aspirated, as is the main station), about 4 feet (1.25 meters) above the ground. Data are uploaded every 15 minutes. Both thermometers are in fan aspirated radiation shields. The second (4 foot AGL) sensor reads only to whole Fahrenheit degrees, while the main one registers tenths.
The location is 33.662 degrees North, 84.441 degrees West, with ground elevation about 1046 feet above mean sea level.
The forecasts are produced by WXSIM, a program written by Tom Ehrensperger, who has been teaching physics, astronomy, and meteorology at Woodward for over 20 years. WXSIM is running in automated mode on a computer in the Science Center. The forecasts are intended to be specific for KATL, but also incorporate recent data from Woodward's instruments and should closely match conditions at the school. Forecasts are based on data from about 7 AM, 3 PM, and 9 PM and are uploaded about 28 minutes after these hours.