Under what conditions are takeoff and landing operations suspended?

Takeoff and landing operations can be suspended when peak wind values exceed 50 knots. This is primarily due to safety considerations, as high wind speeds can greatly affect the control of the aircraft during critical phases of flight such as takeoff and landing. Pilots need to ensure that they have the utmost stability and control over the aircraft to guarantee safety for the crew, passengers, and aircraft itself. Winds at such high speeds can lead to loss of control and increase the risk of accidents.

The other conditions mentioned, such as visibility below 1 mile, extreme temperatures (ISA +35°C), and severe turbulence, can also impact operations but typically do not mandate a complete suspension. In general, safety protocols would guide decisions in these scenarios, but the threshold of 50 knots is a clear operational limit widely recognized in aviation practices.