Technical Abstract: Drift from aerial application of crop protection materials is influenced by many factors such as mean wind, temperature, relative humidity, and atmospheric stability. The applicator is responsible for making all possible efforts to reduce drift. Atmospheric conditions and stability must be considered and adjusted for on the basis of real-time observations and past experience. The objective of this research was to further document the effects of atmospheric conditions and stability on the deposition, drift, and deposited droplet size characteristics of aerial sprays. Twelve replications using a fine aerial spray treatment were conducted over the course of a day. Ground deposition and airborne concentrations at multiple heights were collected at multiple downwind locations using mylar cards and nylon screen cylinders, respectively. Results indicated that wind speed was more dominant than stability, and increased wind speeds resulted in increased downwind ground deposition, suspended concentrations, and transport of larger droplets downwind. There were no significant differences in either ground depositions or airborne concentrations past 75 m downwind, regardless of atmospheric stability. Overall, the results indicated that wind speed was the most dominant meteorological factor in the transport and fate of aerially applied sprays.