What is the primary concern when flying through a squall line?

When flying through a squall line, the primary concern is increased turbulence and severe weather. A squall line is typically characterized by a line of severe thunderstorms that can produce strong winds, hail, heavy rain, and intense lightning. These elements contribute to hazardous flying conditions, with turbulence being a significant factor. Pilots must be particularly vigilant during these situations as the sudden changes in air pressure and wind shear can create challenges in maintaining aircraft control and safety.

Furthermore, the severe weather associated with squall lines can lead to the possibility of microbursts or downdrafts, which are critical considerations for takeoff and landing phases. The potential for rapidly changing conditions necessitates that pilots are well-prepared and informed about these weather systems to ensure safe flight operations.

While low visibility and low temperatures can be considerations in certain weather scenarios, the immediate risk and concern during a squall line are predominantly associated with the severe turbulence and adverse weather conditions it brings.