Final answer:
The most hazardous condition when flying an sUAS near thunderstorms is wind shear and turbulence, which can lead to a loss of control or structural failure of the aircraft.
Step-by-step explanation:
The condition considered to be the most hazardous when flying an sUAS (small Unmanned Aircraft System) in the vicinity of thunderstorms is wind shear and turbulence. Wind shear refers to a sudden change in wind speed and/or direction over a short distance, which can disorient the aircraft's course and make control difficult. Thunderstorms are capable of producing severe wind shear and turbulence, which present significant risks to the stability and safety of an sUAS.
While static electricity and lightning are both concerns, they are secondary in comparison to the immediate physical effects of wind shear. Static electricity can cause minor disturbances, and the likelihood of a drone being struck by lightning is relatively low. However, wind shear can lead to a sudden loss of altitude or structural failure, making it a critical threat to consider for sUAS operations near thunderstorms.